练习2

package finish;

public class work {

    public static void main(String[] args) {
        int a=100;
        int b;
        int c;
        int d;
        b=(a/100%10);
        c=(a/10%10);
        d=(a/10);
        System.out.println("b="+b);
        System.out.println("c="+c);
        System.out.println("d="+d);
        System.err.println(b+c+d);
        
        
    }

}