第二次作业

package stug;

public class sdf {

    public static void main(String[] args) {
        char a = 'A';

                System.out.println((char)(a + 32));//强制转换成char型



        }



        }

 

package stug;

public class sdf {

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


    }

 

 

 

package stug;

public class sdf {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int a = 1;
        int b = 2;
        int tmp;
        //进行数据交换
        tmp = a;
        a = b;
        b = tmp;
        System.out.println("交换后的a:"+ a + ",b:" + b);
    }

}