operator Demo02

package operator;

public class Demo02 {
    public static void main(String[] args) {
        long a =123123123123123l;
        int b =123;
        short c =10;
        byte d =8;

        System.out.println(a+b+c+d);
        System.out.println(b+c+d);
        System.out.println(c+d);
        //cast:转换


    }
}