第一次上机作业

public class abb {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int a=2,b=3;
        int c;
       
        c=a;
        a=b;
        b=c;
        System.out.println("a="+a+  "b="+b);
        
    }

}

 

 

public class two {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int num=567;
        int ge,shi,bai,sum;
        ge=num%10;
        shi=num/10%10;
        bai=num/100;
        sum=ge+shi+bai;
        System.out.println("sum="+sum);
    }

}

 

 

public class three {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int f=50;
        int c=(f-32)/5*9;
        System.out.println("c="+c);
    }

}

 

 

public class four {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        char a='L';
        char b='L'+32;
        System.out.println("L的小写为"+b);
    }

}