第二次作业

已知a，b均是整型变量，写出将a，b两变量中的值互换的程序

package haha;

public class dasd {
    public static void main(String[] args) {
           int a = 5;
            int b = 6;
            int c = a;
            a = b;
            b = c;
            System.out.println(a);  
            System.out.println(b);
    }

给定一个0到1000的整数，就个位数的和

package haha;

public class dasd {
    public static void main(String[] args) {
         int a = 456;
            int ge = a%10;
            int shi = a/10%10;
            int bai = a/100%10;
            int total = ge + shi + bai;
            System.out.println(total);
    }
}

华氏度50度转成摄氏度是多少？（华氏度和摄氏度互相转换，从华氏度变成摄氏度只要减去32，乘以五再除以九）

package haha;

public class dasd {
    public static void main(String[] args) {
         int hua = 50;
            int she = (hua - 32)*5/9;
            System.out.println(she);

    }
}

给定一个任意的大写字母A到 Z，转换为小写字母（知识点：变量和运算符

package haha;

public class dasd {
    public static void main(String[] args) {
          char c = 'A';
            char c2 = 'A' + 32;
            System.out.println(c2);
    }
}

）