Java 2017.9.25 杨浩宁作业

Posted 2020-10-10

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        System.out.println("5+5=" + 5 + 5);
        int a = 3,b;
        b = a++;
        System.out.println("a=" + a + ",b=" + b);
        int a1 = 3,b1;
        b1 = ++a1;
        System.out.println("a="+ a +",b=" + b);
        short s = 3;
        s = (short) (s + (short)4);
        System.out.println("s=" + s);
        System.out.println(6 & 3);
        System.out.println(6 | 3);
        System.out.println(6 ^ 3);
        System.out.println(3 << 2);
        System.out.println(3 >> 1);
        int x = 0,y;
        y = x > 1 ? 100 : 200;
        System.out.println("y=" + y);
        
        Scanner hy = new Scanner(System.in);
        int h,h1;
        System.out.println("请依次输入两个整数");
        h = new Integer(hy.nextLine());
        //int aaa = hy.nextInt();
        System.out.println("请输入第二个整数");
        h1 = new Integer(hy.nextLine());
        int temp = h > h1 ? h : h1;
        System.out.println(temp);
        
        System.out.println("请依次输入三个整数");
        int k,k1,k2,temp1,temp2;
        k = new Integer(hy.nextLine());
        k1 = new Integer(hy.nextLine());
        k2 = new Integer(hy.nextLine());
        temp1 = k > k1 ? k : k1;
        temp2 = temp1 > k2 ? temp1 : k2;
        System.out.println(temp2);
        
        
        System.out.println("输入数字1-12");
        int month;
        month = new Integer(hy.nextLine());
        if(month >= 3 && month <= 5) {
            System.out.println("春天");
        }else if(month >= 6 && month <= 8) {
            System.out.println("夏天");
        }else if(month >= 9 && month <= 11) {
            System.out.println("秋天");
        }else if(month >= 12 && month <= 2) {
            System.out.println("冬天");
        }else {System.out.println("输入有误！");}
        
        System.out.println("输入数字1-12");
        int month1;
        month1 = new Integer(hy.nextLine());
        switch(month1){
        case ‘3‘: case ‘4‘: case ‘5‘:
            System.out.println("春天");
            break;
        case ‘6‘: case ‘7‘: case ‘8‘:
            System.out.println("夏天");
            break;
        case ‘9‘: case ‘10‘: case ‘11‘:
            System.out.println("秋天");
            break;
        case ‘12‘: case ‘1‘: case ‘2‘:
            System.out.println("冬天");
            break;
        default:
            System.out.println("输入有误！");
            break;
        }
        
        int v = 1;
        do {
            System.out.println("v=" + v);
            v++;
        }while(v < 1);
        
        int m = 1;
        while(m < 1) {
            System.out.println("m=" + m);
            m++;
        }
        
        int g = 1; 
        for(System.out.println("a"); g < 3;System.out.println("c")) System.out.println("d")
            g++;
        System.out.println(g);
    }
}