Java开学测试

Posted 2022-10-14 zwx655

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Java开学测试相关的知识，希望对你有一定的参考价值。

Java编程思路：

先私有定义各个对象，然后对每个变量定义 get（）（读取变量信息）和 set（）（设置变量信息），方便在ScoreManagement 类中调用给对象赋值和读取该对象的值；然后按要求编写主界面函数和退出函数，先简后难；编写主界面是运用switch、case选择；退出函数运用system.exit(-1)强制退出。然后依次编写录入成绩函数、修改成绩函数、和计算绩点的函数，注意题目要求，用for循环找的对应的学号和姓名以及其各科成绩。然后实现Y和N的判断，是Y退出循环，回到主界面，是N回到录入（修改）界面。

package xiaoceshi;

public class ScoreInformation 
private String stunumber;
private String name;
private double mathematicsscore;
private double englishiscore;
private double  networkscore;
private double databasescore;
private double softwarescore;
public String getStunumber() 
    return stunumber;

public void setStunumber(String stunumber) 
    this.stunumber = stunumber;

public String getName() 
    return name;

public void setName(String name) 
    this.name = name;

public double getMathematicsscore() 
    return mathematicsscore;

public void setMathematicsscore(double mathematicsscore) 
    this.mathematicsscore = mathematicsscore;

public double getEnglishiscore() 
    return englishiscore;

public void setEnglishiscore(double englishiscore) 
    this.englishiscore = englishiscore;

public double getNetworkscore() 
    return networkscore;

public void setNetworkscore(double networkscore) 
    this.networkscore = networkscore;

public double getDatabasescore() 
    return databasescore;

public void setDatabasescore(double databasescore) 
    this.databasescore = databasescore;

public double getSoftwarescore() 
    return softwarescore;

public void setSoftwarescore(double softwarescore) 
    this.softwarescore = softwarescore;

public ScoreInformation(String stunumber,String name,double mathematicsscore,double englishiscore,double  networkscore,double databasescore,double softwarescore)

    

public ScoreInformation()

package xiaoceshi;
import java.util.Scanner;
public class ScoreManagement 
    
static ScoreInformation s[]=new ScoreInformation[100];
static int N=0;
static Scanner scanner=new Scanner(System.in);
public static void chushizhi()
    s[0]=new ScoreInformation();
    s[0].setStunumber("20183704");
    s[0].setName("赵文轩");
    s[0].setMathematicsscore(0);
    s[0].setEnglishiscore(0);
    s[0].setNetworkscore(0);
    s[0].setDatabasescore(0);
    s[0].setSoftwarescore(0);
    s[1]=new ScoreInformation();
    s[1].setStunumber("20183705");
    s[1].setName("aaa");
    s[1].setMathematicsscore(0);
    s[1].setEnglishiscore(0);
    s[1].setNetworkscore(0);
    s[1].setDatabasescore(0);
    s[1].setSoftwarescore(0);
    s[2]=new ScoreInformation();
    s[2].setStunumber("20183706");
    s[2].setName("bbb");
    s[2].setMathematicsscore(0);
    s[2].setEnglishiscore(0);
    s[2].setNetworkscore(0);
    s[2].setDatabasescore(0);
    s[2].setSoftwarescore(0);
    s[3]=new ScoreInformation();
    s[3].setStunumber("20183707");
    s[3].setName("ccc");
    s[3].setMathematicsscore(0);
    s[3].setEnglishiscore(0);
    s[3].setNetworkscore(0);
    s[3].setDatabasescore(0);
    s[3].setSoftwarescore(0);
    s[4]=new ScoreInformation();
    s[4].setStunumber("20183708");
    s[4].setName("ddd");
    s[4].setMathematicsscore(0);
    s[4].setEnglishiscore(0);
    s[4].setNetworkscore(0);
    s[4].setDatabasescore(0);
    s[4].setSoftwarescore(0);
    N=5;    

public static void show()

    System.out.println("****************************************************");
    System.out.println("                 石家庄铁道大学软件工程系");
    System.out.println("                 学生学籍管理系统2019版");
    System.out.println("****************************************************");
    System.out.println("               1.学生考试成绩录入");
    System.out.println("               2.学生考试成绩修改");
    System.out.println("               3.计算学生成绩绩点");
    System.out.println("               4.退出学籍管理系统");
    System.out.println("请输入要执行的操作：");
    int t=scanner.nextInt();
    if(t<1&&t>4)System.out.println("输入的错误信息");
    switch(t)
    
    case 1:input();break;
    case 2:change();break;
    case 3:jidain();break;
    case 4:EXIT();break;
    

public static void EXIT()

    System.out.println("****************************************************");
    System.out.println("     谢谢使用石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("                   制作人：赵文轩");
    System.out.println("****************************************************");
    System.exit(-1);

public static void input()

    while (true)
    
    int t=0;
    System.out.println("*****************************************************");
    System.out.println("        石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("               学生考试成绩录入界面");
    System.out.println("****************************************************");
    System.out.println("               请输入学生学号：********");
    System.out.println("****************************************************");
    System.out.println("请输入八位的学号：");
    String a=scanner.next();
    
    for(int i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩录入界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 请输入高等数学成绩：");
            System.out.println("****************************************************");
            s[i].setMathematicsscore(scanner.nextDouble());
            if(s[i].getMathematicsscore()>0&&s[i].getMathematicsscore()<=100)
            
                System.out.println("****************************************************");
                System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                System.out.println("                     学生考试成绩录入界面");
                System.out.println("****************************************************");
                System.out.println("                 学生学号："+s[i].getStunumber());
                System.out.println("                 学生姓名："+s[i].getName());
                System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                System.out.println("                 请输入大学英语成绩：");
                System.out.println("****************************************************");
                s[i].setEnglishiscore(scanner.nextDouble());
                if(s[i].getEnglishiscore()>0&&s[i].getEnglishiscore()<=100)
                
                    System.out.println("****************************************************");
                    System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                    System.out.println("                     学生考试成绩录入界面");
                    System.out.println("****************************************************");
                    System.out.println("                 学生学号："+s[i].getStunumber());
                    System.out.println("                 学生姓名："+s[i].getName());
                    System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                    System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                    System.out.println("                 请输入计算机网络成绩：");
                    System.out.println("****************************************************");
                    s[i].setNetworkscore(scanner.nextDouble());
                    if(s[i].getNetworkscore()>0&&s[i].getNetworkscore()<=100)
                    
                        System.out.println("****************************************************");
                        System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                        System.out.println("                     学生考试成绩录入界面");
                        System.out.println("****************************************************");
                        System.out.println("                 学生学号："+s[i].getStunumber());
                        System.out.println("                 学生姓名："+s[i].getName());
                        System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                        System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                        System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                        System.out.println("                 请输入数据库成绩：");
                        System.out.println("****************************************************");
                        s[i].setDatabasescore(scanner.nextDouble());
                        if(s[i].getDatabasescore()>0&&s[i].getDatabasescore()<100)
                        
                            System.out.println("****************************************************");
                            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                            System.out.println("                     学生考试成绩录入界面");
                            System.out.println("****************************************************");
                            System.out.println("                 学生学号："+s[i].getStunumber());
                            System.out.println("                 学生姓名："+s[i].getName());
                            System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                            System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                            System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                            System.out.println("                 输入数据库成绩："+s[i].getDatabasescore());
                            System.out.println("                 请输入软件工程成绩：");
                            System.out.println("****************************************************");
                            s[i].setSoftwarescore(scanner.nextDouble());
                            if(s[i].getSoftwarescore()>0&&s[i].getSoftwarescore()<=100)
                            
                                System.out.println("****************************************************");
                                System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                                System.out.println("                     学生考试成绩录入界面");
                                System.out.println("****************************************************");
                                System.out.println("                 学生学号："+s[i].getStunumber());
                                System.out.println("                 学生姓名："+s[i].getName());
                                System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                                System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                                System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                                System.out.println("                 数据库成绩："+s[i].getDatabasescore());
                                System.out.println("                 软件工程成绩："+s[i].getSoftwarescore());
                                System.out.println("****************************************************");
                                System.out.println("       该学生成绩已录入完毕，是否提交（Y/N）");
                                String c=scanner.next();
                                if(c.equals("Y"))
                                    
                                       t=1;
                                       break;
                                    
                                else 
                                
                                    s[i].setMathematicsscore(0);
                                    s[i].setEnglishiscore(0);
                                    s[i].setNetworkscore(0);
                                    s[i].setDatabasescore(0);
                                    s[i].setSoftwarescore(0);
                                    break;
                                    
                                
                            else t=0;break;
                        
                        else t=0;break;
                    
                    else t=0;break;
                    
                
                else t=0;break;
            
        
        else if(i==N-1)System.out.println("该学号不存在");
    
    if(t==1)break;
    

public static void change()

    while(true)
    
    System.out.println("****************************************************");
    System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("                     学生考试成绩修改界面");
    System.out.println("****************************************************");
    System.out.println("                请输入学生学号：********");
    System.out.println("****************************************************");
    String a=scanner.next();
    int i;
    int m=0;
    
    for(i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩修改界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学成绩："+s[i].getMathematicsscore());
            System.out.println("                 2.大学英语成绩："+s[i].getEnglishiscore());
            System.out.println("                 3.计算机网络成绩："+s[i].getNetworkscore());
            System.out.println("                 4.数据库成绩："+s[i].getDatabasescore());
            System.out.println("                 5.软件工程成绩："+s[i].getSoftwarescore());
            System.out.println("****************************************************");
            double x1,x2,x3,x4,x5;
            x1=s[i].getMathematicsscore();
            x2=s[i].getEnglishiscore();
            x3=s[i].getNetworkscore();
            x4=s[i].getDatabasescore();
            x5=s[i].getSoftwarescore();
            System.out.println("请输入要修改的科目：");
            int t;
            t=scanner.nextInt();
            switch(t)
            
            case 1:
               System.out.println("****************************************************");
               System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
               System.out.println("                     学生考试成绩修改界面");
               System.out.println("****************************************************");
               System.out.println("                 学生学号："+s[i].getStunumber());
               System.out.println("                 学生姓名："+s[i].getName());
               System.out.println("             请输入修改后的高等数学成绩：");
               s[i].setMathematicsscore(scanner.nextDouble());
               break;
            case 2:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后的大学英语成绩：");
                   s[i].setEnglishiscore(scanner.nextDouble());
                   break;
            case 3:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后的计算机网络成绩：");
                   s[i].setNetworkscore(scanner.nextDouble());
                   break;
            
            case 4:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后数据库的成绩：");
                   s[i].setDatabasescore(scanner.nextDouble());
                   break;
            case 5:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后软件工程的成绩：");
                   s[i].setSoftwarescore(scanner.nextDouble());
                   break;
            
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩修改界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学成绩："+s[i].getMathematicsscore());
            System.out.println("                 2.大学英语成绩："+s[i].getEnglishiscore());
            System.out.println("                 3.计算机网络成绩："+s[i].getNetworkscore());
            System.out.println("                 4.数据库成绩："+s[i].getDatabasescore());
            System.out.println("                 5.软件工程成绩："+s[i].getSoftwarescore());
            System.out.println("                  该同学成绩已经修改完毕,是否提交（Y/N）");
            System.out.println("****************************************************");
            String n=scanner.next();
            if(n.equals("Y"))m=1;break;
            else
            
                s[i].setMathematicsscore(x1);
                s[i].setEnglishiscore(x2);
                s[i].setNetworkscore(x3);
                s[i].setDatabasescore(x4);
                s[i].setSoftwarescore(x5);
                break;
            
        
        else if(i==N-1)
        
            System.out.println("该学号不存在");
        
    
    if(m==1)break;
    

public static void jidain()

    int t=0;
    double mathematicsscore=0;
    double englishiscore=0;
    double  networkscore=0;
    double databasescore=0;
    double softwarescore=0;
    double pingjun=0;
    System.out.println("****************************************************");
    System.out.println("         石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("             学生考试成绩绩点计算界面");
    System.out.println("****************************************************");
    System.out.println("            请输入学生学号：");
    System.out.println("****************************************************");
    String a =scanner.next();
    for(int i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            if(s[i].getMathematicsscore()>=90)mathematicsscore=4;
            else if(s[i].getMathematicsscore()>=85&&s[i].getMathematicsscore()<=89.9)mathematicsscore=3.7;
            else if(s[i].getMathematicsscore()>=82&&s[i].getMathematicsscore()<=84.9)mathematicsscore=3.3;
            else if(s[i].getMathematicsscore()>=78&&s[i].getMathematicsscore()<=81.9)mathematicsscore=3.0;
            else if(s[i].getMathematicsscore()>=75&&s[i].getMathematicsscore()<=77.9)mathematicsscore=2.7;
            else if(s[i].getMathematicsscore()>=72&&s[i].getMathematicsscore()<=74.9)mathematicsscore=2.3;
            else if(s[i].getMathematicsscore()>=68&&s[i].getMathematicsscore()<=71.9)mathematicsscore=2.0;
            else if(s[i].getMathematicsscore()>=66&&s[i].getMathematicsscore()<=67.9)mathematicsscore=1.7;
            else if(s[i].getMathematicsscore()>=64&&s[i].getMathematicsscore()<=65.9)mathematicsscore=1.5;
            else if(s[i].getMathematicsscore()>=60&&s[i].getMathematicsscore()<=63.9)mathematicsscore=1.0;
            else if(s[i].getMathematicsscore()<60)mathematicsscore=0;
            if(s[i].getEnglishiscore()>=90)mathematicsscore=4;
            else if(s[i].getEnglishiscore()>=85&&s[i].getEnglishiscore()<=89.9)englishiscore=3.7;
            else if(s[i].getEnglishiscore()>=82&&s[i].getEnglishiscore()<=84.9)englishiscore=3.3;
            else if(s[i].getEnglishiscore()>=78&&s[i].getEnglishiscore()<=81.9)englishiscore=3.0;
            else if(s[i].getEnglishiscore()>=75&&s[i].getEnglishiscore()<=77.9)englishiscore=2.7;
            else if(s[i].getEnglishiscore()>=72&&s[i].getEnglishiscore()<=74.9)englishiscore=2.3;
            else if(s[i].getEnglishiscore()>=68&&s[i].getEnglishiscore()<=71.9)englishiscore=2.0;
            else if(s[i].getEnglishiscore()>=66&&s[i].getEnglishiscore()<=67.9)englishiscore=1.7;
            else if(s[i].getEnglishiscore()>=64&&s[i].getEnglishiscore()<=65.9)englishiscore=1.5;
            else if(s[i].getEnglishiscore()>=60&&s[i].getEnglishiscore()<=63.9)englishiscore=1.0;
            else if(s[i].getEnglishiscore()<60)englishiscore=0;
            if(s[i].getNetworkscore()>=90)networkscore=4;
            else if(s[i].getNetworkscore()>=85&&s[i].getNetworkscore()<=89.9)networkscore=3.7;
            else if(s[i].getNetworkscore()>=82&&s[i].getNetworkscore()<=84.9)networkscore=3.3;
            else if(s[i].getNetworkscore()>=78&&s[i].getNetworkscore()<=81.9)networkscore=3.0;
            else if(s[i].getNetworkscore()>=75&&s[i].getNetworkscore()<=77.9)networkscore=2.7;
            else if(s[i].getNetworkscore()>=72&&s[i].getNetworkscore()<=74.9)networkscore=2.3;
            else if(s[i].getNetworkscore()>=68&&s[i].getNetworkscore()<=71.9)networkscore=2.0;
            else if(s[i].getNetworkscore()>=66&&s[i].getNetworkscore()<=67.9)networkscore=1.7;
            else if(s[i].getNetworkscore()>=64&&s[i].getNetworkscore()<=65.9)networkscore=1.5;
            else if(s[i].getNetworkscore()>=60&&s[i].getNetworkscore()<=63.9)networkscore=1.0;
            else if(s[i].getNetworkscore()<60)networkscore=0;
            if(s[i].getDatabasescore()>=90)databasescore=4;
            else if(s[i].getDatabasescore()>=85&&s[i].getDatabasescore()<=89.9)databasescore=3.7;
            else if(s[i].getDatabasescore()>=82&&s[i].getDatabasescore()<=84.9)databasescore=3.3;
            else if(s[i].getDatabasescore()>=78&&s[i].getDatabasescore()<=81.9)databasescore=3.0;
            else if(s[i].getDatabasescore()>=75&&s[i].getDatabasescore()<=77.9)databasescore=2.7;
            else if(s[i].getDatabasescore()>=72&&s[i].getDatabasescore()<=74.9)databasescore=2.3;
            else if(s[i].getDatabasescore()>=68&&s[i].getDatabasescore()<=71.9)databasescore=2.0;
            else if(s[i].getDatabasescore()>=66&&s[i].getDatabasescore()<=67.9)databasescore=1.7;
            else if(s[i].getDatabasescore()>=64&&s[i].getDatabasescore()<=65.9)databasescore=1.5;
            else if(s[i].getDatabasescore()>=60&&s[i].getDatabasescore()<=63.9)databasescore=1.0;
            else if(s[i].getDatabasescore()<60)databasescore=0;
            if(s[i].getSoftwarescore()>=90)softwarescore=4;
            else if(s[i].getSoftwarescore()>=85&&s[i].getSoftwarescore()<=89.9)softwarescore=3.7;
            else if(s[i].getSoftwarescore()>=82&&s[i].getSoftwarescore()<=84.9)softwarescore=3.3;
            else if(s[i].getSoftwarescore()>=78&&s[i].getSoftwarescore()<=81.9)softwarescore=3.0;
            else if(s[i].getSoftwarescore()>=75&&s[i].getSoftwarescore()<=77.9)softwarescore=2.7;
            else if(s[i].getSoftwarescore()>=72&&s[i].getSoftwarescore()<=74.9)softwarescore=2.3;
            else if(s[i].getSoftwarescore()>=68&&s[i].getSoftwarescore()<=71.9)softwarescore=2.0;
            else if(s[i].getSoftwarescore()>=66&&s[i].getSoftwarescore()<=67.9)softwarescore=1.7;
            else if(s[i].getSoftwarescore()>=64&&s[i].getSoftwarescore()<=65.9)softwarescore=1.5;
            else if(s[i].getSoftwarescore()>=60&&s[i].getSoftwarescore()<=63.9)softwarescore=1.0;
            else if(s[i].getSoftwarescore()<60)softwarescore=0;
            pingjun=(4*s[i].getMathematicsscore()+3*s[i].getEnglishiscore()+4*s[i].getNetworkscore()+3*s[i].getDatabasescore()+2*s[i].getSoftwarescore())/16;
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                学生考试成绩绩点计算界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学绩点："+mathematicsscore);
            System.out.println("                 2.大学英语绩点："+englishiscore);
            System.out.println("                 3.计算机网络绩点："+networkscore);
            System.out.println("                 4.数据库绩点："+databasescore);
            System.out.println("                 5.软件工程绩点："+softwarescore);
            System.out.println("                  你的平均学分绩点为："+pingjun);
            if(pingjun>=2)System.out.println("       你的学分绩点已达到毕业要求！"  );
            else System.out.println("     你的学分绩点不满足毕业要求！" );
            System.out.println("     是否返回系统主界面：（Y/N）");
            System.out.println("****************************************************");
            String c=scanner.next();
            if(c.equals("Y"))t=1;break;
            else break;
        
        else if(i==N-1)System.out.println("该学号不存在");
    
    if(t==1)show();

public static void main(String agre[])

    
    chushizhi();
    while(true)
    
        show();

---恢复内容结束---

package xiaoceshi;

public class ScoreInformation 
private String stunumber;
private String name;
private double mathematicsscore;
private double englishiscore;
private double  networkscore;
private double databasescore;
private double softwarescore;
public String getStunumber() 
    return stunumber;

public void setStunumber(String stunumber) 
    this.stunumber = stunumber;

public String getName() 
    return name;

public void setName(String name) 
    this.name = name;

public double getMathematicsscore() 
    return mathematicsscore;

public void setMathematicsscore(double mathematicsscore) 
    this.mathematicsscore = mathematicsscore;

public double getEnglishiscore() 
    return englishiscore;

public void setEnglishiscore(double englishiscore) 
    this.englishiscore = englishiscore;

public double getNetworkscore() 
    return networkscore;

public void setNetworkscore(double networkscore) 
    this.networkscore = networkscore;

public double getDatabasescore() 
    return databasescore;

public void setDatabasescore(double databasescore) 
    this.databasescore = databasescore;

public double getSoftwarescore() 
    return softwarescore;

public void setSoftwarescore(double softwarescore) 
    this.softwarescore = softwarescore;

public ScoreInformation(String stunumber,String name,double mathematicsscore,double englishiscore,double  networkscore,double databasescore,double softwarescore)

    

public ScoreInformation()

package xiaoceshi;
import java.util.Scanner;
public class ScoreManagement 
    
static ScoreInformation s[]=new ScoreInformation[100];
static int N=0;
static Scanner scanner=new Scanner(System.in);
public static void chushizhi()
    s[0]=new ScoreInformation();
    s[0].setStunumber("20183704");
    s[0].setName("赵文轩");
    s[0].setMathematicsscore(0);
    s[0].setEnglishiscore(0);
    s[0].setNetworkscore(0);
    s[0].setDatabasescore(0);
    s[0].setSoftwarescore(0);
    s[1]=new ScoreInformation();
    s[1].setStunumber("20183705");
    s[1].setName("aaa");
    s[1].setMathematicsscore(0);
    s[1].setEnglishiscore(0);
    s[1].setNetworkscore(0);
    s[1].setDatabasescore(0);
    s[1].setSoftwarescore(0);
    s[2]=new ScoreInformation();
    s[2].setStunumber("20183706");
    s[2].setName("bbb");
    s[2].setMathematicsscore(0);
    s[2].setEnglishiscore(0);
    s[2].setNetworkscore(0);
    s[2].setDatabasescore(0);
    s[2].setSoftwarescore(0);
    s[3]=new ScoreInformation();
    s[3].setStunumber("20183707");
    s[3].setName("ccc");
    s[3].setMathematicsscore(0);
    s[3].setEnglishiscore(0);
    s[3].setNetworkscore(0);
    s[3].setDatabasescore(0);
    s[3].setSoftwarescore(0);
    s[4]=new ScoreInformation();
    s[4].setStunumber("20183708");
    s[4].setName("ddd");
    s[4].setMathematicsscore(0);
    s[4].setEnglishiscore(0);
    s[4].setNetworkscore(0);
    s[4].setDatabasescore(0);
    s[4].setSoftwarescore(0);
    N=5;    

public static void show()

    System.out.println("****************************************************");
    System.out.println("                 石家庄铁道大学软件工程系");
    System.out.println("                 学生学籍管理系统2019版");
    System.out.println("****************************************************");
    System.out.println("               1.学生考试成绩录入");
    System.out.println("               2.学生考试成绩修改");
    System.out.println("               3.计算学生成绩绩点");
    System.out.println("               4.退出学籍管理系统");
    System.out.println("请输入要执行的操作：");
    int t=scanner.nextInt();
    if(t<1&&t>4)System.out.println("输入的错误信息");
    switch(t)
    
    case 1:input();break;
    case 2:change();break;
    case 3:jidain();break;
    case 4:EXIT();break;
    

public static void EXIT()

    System.out.println("****************************************************");
    System.out.println("     谢谢使用石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("                   制作人：赵文轩");
    System.out.println("****************************************************");
    System.exit(-1);

public static void input()

    while (true)
    
    int t=0;
    System.out.println("*****************************************************");
    System.out.println("        石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("               学生考试成绩录入界面");
    System.out.println("****************************************************");
    System.out.println("               请输入学生学号：********");
    System.out.println("****************************************************");
    System.out.println("请输入八位的学号：");
    String a=scanner.next();
    
    for(int i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩录入界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 请输入高等数学成绩：");
            System.out.println("****************************************************");
            s[i].setMathematicsscore(scanner.nextDouble());
            if(s[i].getMathematicsscore()>0&&s[i].getMathematicsscore()<=100)
            
                System.out.println("****************************************************");
                System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                System.out.println("                     学生考试成绩录入界面");
                System.out.println("****************************************************");
                System.out.println("                 学生学号："+s[i].getStunumber());
                System.out.println("                 学生姓名："+s[i].getName());
                System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                System.out.println("                 请输入大学英语成绩：");
                System.out.println("****************************************************");
                s[i].setEnglishiscore(scanner.nextDouble());
                if(s[i].getEnglishiscore()>0&&s[i].getEnglishiscore()<=100)
                
                    System.out.println("****************************************************");
                    System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                    System.out.println("                     学生考试成绩录入界面");
                    System.out.println("****************************************************");
                    System.out.println("                 学生学号："+s[i].getStunumber());
                    System.out.println("                 学生姓名："+s[i].getName());
                    System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                    System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                    System.out.println("                 请输入计算机网络成绩：");
                    System.out.println("****************************************************");
                    s[i].setNetworkscore(scanner.nextDouble());
                    if(s[i].getNetworkscore()>0&&s[i].getNetworkscore()<=100)
                    
                        System.out.println("****************************************************");
                        System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                        System.out.println("                     学生考试成绩录入界面");
                        System.out.println("****************************************************");
                        System.out.println("                 学生学号："+s[i].getStunumber());
                        System.out.println("                 学生姓名："+s[i].getName());
                        System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                        System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                        System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                        System.out.println("                 请输入数据库成绩：");
                        System.out.println("****************************************************");
                        s[i].setDatabasescore(scanner.nextDouble());
                        if(s[i].getDatabasescore()>0&&s[i].getDatabasescore()<100)
                        
                            System.out.println("****************************************************");
                            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                            System.out.println("                     学生考试成绩录入界面");
                            System.out.println("****************************************************");
                            System.out.println("                 学生学号："+s[i].getStunumber());
                            System.out.println("                 学生姓名："+s[i].getName());
                            System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                            System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                            System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                            System.out.println("                 输入数据库成绩："+s[i].getDatabasescore());
                            System.out.println("                 请输入软件工程成绩：");
                            System.out.println("****************************************************");
                            s[i].setSoftwarescore(scanner.nextDouble());
                            if(s[i].getSoftwarescore()>0&&s[i].getSoftwarescore()<=100)
                            
                                System.out.println("****************************************************");
                                System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                                System.out.println("                     学生考试成绩录入界面");
                                System.out.println("****************************************************");
                                System.out.println("                 学生学号："+s[i].getStunumber());
                                System.out.println("                 学生姓名："+s[i].getName());
                                System.out.println("                 高等数学成绩："+s[i].getMathematicsscore());
                                System.out.println("                 大学英语成绩："+s[i].getEnglishiscore());
                                System.out.println("                 计算机网络成绩："+s[i].getNetworkscore());
                                System.out.println("                 数据库成绩："+s[i].getDatabasescore());
                                System.out.println("                 软件工程成绩："+s[i].getSoftwarescore());
                                System.out.println("****************************************************");
                                System.out.println("       该学生成绩已录入完毕，是否提交（Y/N）");
                                String c=scanner.next();
                                if(c.equals("Y"))
                                    
                                       t=1;
                                       break;
                                    
                                else 
                                
                                    s[i].setMathematicsscore(0);
                                    s[i].setEnglishiscore(0);
                                    s[i].setNetworkscore(0);
                                    s[i].setDatabasescore(0);
                                    s[i].setSoftwarescore(0);
                                    break;
                                    
                                
                            else t=0;break;
                        
                        else t=0;break;
                    
                    else t=0;break;
                    
                
                else t=0;break;
            
        
        else if(i==N-1)System.out.println("该学号不存在");
    
    if(t==1)break;
    

public static void change()

    while(true)
    
    System.out.println("****************************************************");
    System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("                     学生考试成绩修改界面");
    System.out.println("****************************************************");
    System.out.println("                请输入学生学号：********");
    System.out.println("****************************************************");
    String a=scanner.next();
    int i;
    int m=0;
    
    for(i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩修改界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学成绩："+s[i].getMathematicsscore());
            System.out.println("                 2.大学英语成绩："+s[i].getEnglishiscore());
            System.out.println("                 3.计算机网络成绩："+s[i].getNetworkscore());
            System.out.println("                 4.数据库成绩："+s[i].getDatabasescore());
            System.out.println("                 5.软件工程成绩："+s[i].getSoftwarescore());
            System.out.println("****************************************************");
            double x1,x2,x3,x4,x5;
            x1=s[i].getMathematicsscore();
            x2=s[i].getEnglishiscore();
            x3=s[i].getNetworkscore();
            x4=s[i].getDatabasescore();
            x5=s[i].getSoftwarescore();
            System.out.println("请输入要修改的科目：");
            int t;
            t=scanner.nextInt();
            switch(t)
            
            case 1:
               System.out.println("****************************************************");
               System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
               System.out.println("                     学生考试成绩修改界面");
               System.out.println("****************************************************");
               System.out.println("                 学生学号："+s[i].getStunumber());
               System.out.println("                 学生姓名："+s[i].getName());
               System.out.println("             请输入修改后的高等数学成绩：");
               s[i].setMathematicsscore(scanner.nextDouble());
               break;
            case 2:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后的大学英语成绩：");
                   s[i].setEnglishiscore(scanner.nextDouble());
                   break;
            case 3:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后的计算机网络成绩：");
                   s[i].setNetworkscore(scanner.nextDouble());
                   break;
            
            case 4:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后数据库的成绩：");
                   s[i].setDatabasescore(scanner.nextDouble());
                   break;
            case 5:
                   System.out.println("****************************************************");
                   System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
                   System.out.println("                     学生考试成绩修改界面");
                   System.out.println("****************************************************");
                   System.out.println("                 学生学号："+s[i].getStunumber());
                   System.out.println("                 学生姓名："+s[i].getName());
                   System.out.println("             请输入修改后软件工程的成绩：");
                   s[i].setSoftwarescore(scanner.nextDouble());
                   break;
            
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                     学生考试成绩修改界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学成绩："+s[i].getMathematicsscore());
            System.out.println("                 2.大学英语成绩："+s[i].getEnglishiscore());
            System.out.println("                 3.计算机网络成绩："+s[i].getNetworkscore());
            System.out.println("                 4.数据库成绩："+s[i].getDatabasescore());
            System.out.println("                 5.软件工程成绩："+s[i].getSoftwarescore());
            System.out.println("                  该同学成绩已经修改完毕,是否提交（Y/N）");
            System.out.println("****************************************************");
            String n=scanner.next();
            if(n.equals("Y"))m=1;break;
            else
            
                s[i].setMathematicsscore(x1);
                s[i].setEnglishiscore(x2);
                s[i].setNetworkscore(x3);
                s[i].setDatabasescore(x4);
                s[i].setSoftwarescore(x5);
                break;
            
        
        else if(i==N-1)
        
            System.out.println("该学号不存在");
        
    
    if(m==1)break;
    

public static void jidain()

    int t=0;
    double mathematicsscore=0;
    double englishiscore=0;
    double  networkscore=0;
    double databasescore=0;
    double softwarescore=0;
    double pingjun=0;
    System.out.println("****************************************************");
    System.out.println("         石家庄铁道大学软件工程系学生学籍管理系统2019版");
    System.out.println("             学生考试成绩绩点计算界面");
    System.out.println("****************************************************");
    System.out.println("            请输入学生学号：");
    System.out.println("****************************************************");
    String a =scanner.next();
    for(int i=0;i<N;i++)
    
        if(a.equals(s[i].getStunumber()))
        
            if(s[i].getMathematicsscore()>=90)mathematicsscore=4;
            else if(s[i].getMathematicsscore()>=85&&s[i].getMathematicsscore()<=89.9)mathematicsscore=3.7;
            else if(s[i].getMathematicsscore()>=82&&s[i].getMathematicsscore()<=84.9)mathematicsscore=3.3;
            else if(s[i].getMathematicsscore()>=78&&s[i].getMathematicsscore()<=81.9)mathematicsscore=3.0;
            else if(s[i].getMathematicsscore()>=75&&s[i].getMathematicsscore()<=77.9)mathematicsscore=2.7;
            else if(s[i].getMathematicsscore()>=72&&s[i].getMathematicsscore()<=74.9)mathematicsscore=2.3;
            else if(s[i].getMathematicsscore()>=68&&s[i].getMathematicsscore()<=71.9)mathematicsscore=2.0;
            else if(s[i].getMathematicsscore()>=66&&s[i].getMathematicsscore()<=67.9)mathematicsscore=1.7;
            else if(s[i].getMathematicsscore()>=64&&s[i].getMathematicsscore()<=65.9)mathematicsscore=1.5;
            else if(s[i].getMathematicsscore()>=60&&s[i].getMathematicsscore()<=63.9)mathematicsscore=1.0;
            else if(s[i].getMathematicsscore()<60)mathematicsscore=0;
            if(s[i].getEnglishiscore()>=90)mathematicsscore=4;
            else if(s[i].getEnglishiscore()>=85&&s[i].getEnglishiscore()<=89.9)englishiscore=3.7;
            else if(s[i].getEnglishiscore()>=82&&s[i].getEnglishiscore()<=84.9)englishiscore=3.3;
            else if(s[i].getEnglishiscore()>=78&&s[i].getEnglishiscore()<=81.9)englishiscore=3.0;
            else if(s[i].getEnglishiscore()>=75&&s[i].getEnglishiscore()<=77.9)englishiscore=2.7;
            else if(s[i].getEnglishiscore()>=72&&s[i].getEnglishiscore()<=74.9)englishiscore=2.3;
            else if(s[i].getEnglishiscore()>=68&&s[i].getEnglishiscore()<=71.9)englishiscore=2.0;
            else if(s[i].getEnglishiscore()>=66&&s[i].getEnglishiscore()<=67.9)englishiscore=1.7;
            else if(s[i].getEnglishiscore()>=64&&s[i].getEnglishiscore()<=65.9)englishiscore=1.5;
            else if(s[i].getEnglishiscore()>=60&&s[i].getEnglishiscore()<=63.9)englishiscore=1.0;
            else if(s[i].getEnglishiscore()<60)englishiscore=0;
            if(s[i].getNetworkscore()>=90)networkscore=4;
            else if(s[i].getNetworkscore()>=85&&s[i].getNetworkscore()<=89.9)networkscore=3.7;
            else if(s[i].getNetworkscore()>=82&&s[i].getNetworkscore()<=84.9)networkscore=3.3;
            else if(s[i].getNetworkscore()>=78&&s[i].getNetworkscore()<=81.9)networkscore=3.0;
            else if(s[i].getNetworkscore()>=75&&s[i].getNetworkscore()<=77.9)networkscore=2.7;
            else if(s[i].getNetworkscore()>=72&&s[i].getNetworkscore()<=74.9)networkscore=2.3;
            else if(s[i].getNetworkscore()>=68&&s[i].getNetworkscore()<=71.9)networkscore=2.0;
            else if(s[i].getNetworkscore()>=66&&s[i].getNetworkscore()<=67.9)networkscore=1.7;
            else if(s[i].getNetworkscore()>=64&&s[i].getNetworkscore()<=65.9)networkscore=1.5;
            else if(s[i].getNetworkscore()>=60&&s[i].getNetworkscore()<=63.9)networkscore=1.0;
            else if(s[i].getNetworkscore()<60)networkscore=0;
            if(s[i].getDatabasescore()>=90)databasescore=4;
            else if(s[i].getDatabasescore()>=85&&s[i].getDatabasescore()<=89.9)databasescore=3.7;
            else if(s[i].getDatabasescore()>=82&&s[i].getDatabasescore()<=84.9)databasescore=3.3;
            else if(s[i].getDatabasescore()>=78&&s[i].getDatabasescore()<=81.9)databasescore=3.0;
            else if(s[i].getDatabasescore()>=75&&s[i].getDatabasescore()<=77.9)databasescore=2.7;
            else if(s[i].getDatabasescore()>=72&&s[i].getDatabasescore()<=74.9)databasescore=2.3;
            else if(s[i].getDatabasescore()>=68&&s[i].getDatabasescore()<=71.9)databasescore=2.0;
            else if(s[i].getDatabasescore()>=66&&s[i].getDatabasescore()<=67.9)databasescore=1.7;
            else if(s[i].getDatabasescore()>=64&&s[i].getDatabasescore()<=65.9)databasescore=1.5;
            else if(s[i].getDatabasescore()>=60&&s[i].getDatabasescore()<=63.9)databasescore=1.0;
            else if(s[i].getDatabasescore()<60)databasescore=0;
            if(s[i].getSoftwarescore()>=90)softwarescore=4;
            else if(s[i].getSoftwarescore()>=85&&s[i].getSoftwarescore()<=89.9)softwarescore=3.7;
            else if(s[i].getSoftwarescore()>=82&&s[i].getSoftwarescore()<=84.9)softwarescore=3.3;
            else if(s[i].getSoftwarescore()>=78&&s[i].getSoftwarescore()<=81.9)softwarescore=3.0;
            else if(s[i].getSoftwarescore()>=75&&s[i].getSoftwarescore()<=77.9)softwarescore=2.7;
            else if(s[i].getSoftwarescore()>=72&&s[i].getSoftwarescore()<=74.9)softwarescore=2.3;
            else if(s[i].getSoftwarescore()>=68&&s[i].getSoftwarescore()<=71.9)softwarescore=2.0;
            else if(s[i].getSoftwarescore()>=66&&s[i].getSoftwarescore()<=67.9)softwarescore=1.7;
            else if(s[i].getSoftwarescore()>=64&&s[i].getSoftwarescore()<=65.9)softwarescore=1.5;
            else if(s[i].getSoftwarescore()>=60&&s[i].getSoftwarescore()<=63.9)softwarescore=1.0;
            else if(s[i].getSoftwarescore()<60)softwarescore=0;
            pingjun=(4*s[i].getMathematicsscore()+3*s[i].getEnglishiscore()+4*s[i].getNetworkscore()+3*s[i].getDatabasescore()+2*s[i].getSoftwarescore())/16;
            System.out.println("****************************************************");
            System.out.println("            石家庄铁道大学软件工程系学生学籍管理系统2019版");
            System.out.println("                学生考试成绩绩点计算界面");
            System.out.println("****************************************************");
            System.out.println("                 学生学号："+s[i].getStunumber());
            System.out.println("                 学生姓名："+s[i].getName());
            System.out.println("                 1.高等数学绩点："+mathematicsscore);
            System.out.println("                 2.大学英语绩点："+englishiscore);
            System.out.println("                 3.计算机网络绩点："+networkscore);
            System.out.println("                 4.数据库绩点："+databasescore);
            System.out.println("                 5.软件工程绩点："+softwarescore);
            System.out.println("                  你的平均学分绩点为："+pingjun);
            if(pingjun>=2)System.out.println("       你的学分绩点已达到毕业要求！"  );
            else System.out.println("     你的学分绩点不满足毕业要求！" );
            System.out.println("     是否返回系统主界面：（Y/N）");
            System.out.println("****************************************************");
            String c=scanner.next();
            if(c.equals("Y"))t=1;break;
            else break;
        
        else if(i==N-1)System.out.println("该学号不存在");
    
    if(t==1)show();

public static void main(String agre[])

    
    chushizhi();
    while(true)
    
        show();