国庆作业 （第四次作业）

class York01
{
    public static void main(String[] args) 
    {
        System.out.println("5+5="+5+5);
    }
}

class York02 
{
    public static void main(String[] args) 
    {
        int a=3,b;
        b=a++;
        System.out.println("a="+a+",b="+b);
    }
}

class York03 
{
    public static void main(String[] args) 
    {
        short s=3;
        s=s+4;
        System.out.println("s="+s);
    }
}

class York04
{
    public static void main(String[] args) 
    {
        short s=3;
        s+=4;
        System.out.println("s="+s);
    }
}

 class York05
{
    public static void main(String[] args)
    {
        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);

    }
}

class York06
{
    public static void main(String[] args)
    {
        int x=0,y;
        y=x>1?100:200;
        System.out.println("y="+y);
    }
}

class York07
{
    public static void main(String[] args)
    {
        Scanner input=new Scanner(System.in);
        int x,y;
        System.out.println("Enter the x ");
        x=input.nextInt();
        System.out.println("Enter the y ");
        y=input.nextInt();
        y=x>y?x:y;
        System.out.println("The larger of the two numbers is"+y);
    }
}

import java.util.Scanner;
class York08
{
    public static void main(String[] args)
    {
        Scanner input=new Scanner(System.in);
        int x,y,z;
        System.out.println("Enter the x ");
        x=input.nextInt();
        System.out.println("Enter the y ");
        y=input.nextInt();
        System.out.println("Enter the z ");
        z=input.nextInt();
        y=x>y?x:y;
        z=y>z?y:z;
        System.out.println("The largest of the three numbers is"+ z);
    }
}

import java.util.Scanner;
class Demo_06
{
    public static void main(String[] args)
    {
        Scanner input=new Scanner(System.in);
        int month;
        System.out.println("Enter the month ");
        month=input.nextInt();
        if(month>=3&&month<=5){
    System.out.println("This month is spring");
}else if(month>=6&&month<=8){
    System.out.println("This month is summer");
}else if(month>=9&&month<=11){
    System.out.println("This month is autumn");
}else if(month==12){
    System.out.println("This month is winter");
}else if(month>=1&&month<=2){
    System.out.println("This month is winter");
}else{
    System.out.println("Error!");
}
    }
}

import java.util.Scanner;
class York10
{
    public static void main(String[] args)
    {
        Scanner input=new Scanner(System.in);
        int month;
        System.out.println("Enter the month ");
        month=input.nextInt();
        switch (month)
        {
        case 1: case 2: case 12:
            System.out.println("This month is winter");
            break;
        case 3: case 4: case 5:
            System.out.println("This month is spring");
            break;
        case 6: case 7: case 8:
            System.out.println("This month is summer");
            break;
        case 9: case 10: case 11:
            System.out.println("This month is autumn");
            break;
        default:
            System.out.println("Error!");
            break;
        }
    }
}

 class York11
{
    public static void main(String[] args)
    {
        int x=1;
        do{
            System.out.println("x="+x);
            x++;
            }while(x<1);
    }
}

class York12
{
    public static void main(String[] args)
    {
        int y=1;
        while(y<1){
            System.out.println("y="+y);
            y++;
            }
    }
}