Java输入输出案例，看这篇就够了！！！

Posted 2023-02-03 小胖java攻城狮

A+B(1)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext())
            int a = sc.nextInt();
            int b = sc.nextInt();
            System.out.println(a+b);
        
    

A+B(2)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        for(int i = 0; i < n; i++)
            int a = sc.nextInt();
            int b = sc.nextInt();
            System.out.println(a+b);
        
    

A+B(3)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext())
            int a = sc.nextInt();
            int b = sc.nextInt();
            if(a == 0 || b == 0)
                return;
            System.out.println(a+b);
        
    

A+B(4)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        while(!sc.hasNext("0"))
            int count = sc.nextInt();
            int sum = 0;
            for(int i =0;i < count;i++)
                sum += sc.nextInt();
            
            System.out.println(sum);
        
    

A+B(5)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        int row = sc.nextInt();
        for(int i = 0 ; i < row; i++)
            int count = sc.nextInt();
            int sum = 0;
            for(int j =0;j < count;j++)
                sum += sc.nextInt();
            
            System.out.println(sum);
        
    

A+B(6)

import java.util.Scanner;

public class Main
    public static void main(String[] args)
        Scanner in = new Scanner(System.in);
         
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextLine())  // 注意 while 处理多个 case
           
          String[] s1=in.nextLine().split(" ");
          int sum =-Integer.parseInt(s1[0]);
          for(String st:s1)
              if(Integer.parseInt(st)==0) return;
              sum+=Integer.parseInt(st);
          
          System.out.println(sum);
        
    

A+B(7)

import java.util.*;
 
public class Main
    public static void main(String[]args)
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext())
            String[] str = sc.nextLine().split(" ");
            int sum = 0;
            for(String i:str)
                sum += Integer.parseInt(i);
            
            System.out.println(sum);
        
    

字符串排序(1)

import java.util.*;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main 
    public static void main(String[] args)
        Scanner in = new Scanner(System.in);
        while(in.hasNextLine())
            int num =Integer.valueOf(in.nextLine());
            String strings=in.nextLine();
            String[] stringAll = strings.split(" ");
            Arrays.sort(stringAll);
            for(String s1:stringAll)
                System.out.print(s1+" ");
            
        
        System.out.println();
    

字符串排序(2)

import java.util.*;
import java.util.Scanner;
public class Main
    public static void main(String[] args)
        Scanner sc = new Scanner(System.in);
        while(sc.hasNextLine())
            String[] line = sc.nextLine().split(" ");
            Arrays.sort(line);
            for(String li : line)
                System.out.print(li+" ");
            
            System.out.println("");
        
    

字符串排序(3)

import java.util.*;

public class Main 
    public static void main(String[] args) 
        Scanner sn = new Scanner(System.in);
        while (sn.hasNext())
            String inputS = sn.next();
            String[] inputSList = inputS.split(",");
            Arrays.sort(inputSList);

            for (int i = 0; i<inputSList.length;i++)
                if (i==inputSList.length - 1) 
                    System.out.println(inputSList[i]);
                    break;
                
                else 
                    System.out.print(inputSList[i] + ",");
                
            
        
    

自测本地通过提交为0

import java.util.*;
 
public class Main
    public static void main(String[] args)
        Scanner sc=new Scanner(System.in);
        while(sc.hasNext())
            long a=sc.nextLong();
            long  b=sc.nextLong();
             System.out.println(a+b);