第一上机练习~~~~~~~~~~~~~~~~~~~~~~~~~~~~武汉一定要加油！！！

package kl;

public class aac {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int a=2;
        int b=3;
        int c;
        c=a;
        a=b;
        b=c;
        System.out.println("a="+a +"b="+b);
        
        int d=957;
        int ge=d%10;
        int shi=d%100/10;
        int bai=d/100;
        System.out.println("各位数的和"+(ge+shi+bai));
        
        float w=50f;
        System.out.println("华氏度转为摄氏度="+(w-32)*5/9);
    
        char g='B';
        System.out.println("转换小写字母为"+(char)(g+32));
    }

}