operator-Demo04

package operator;

public class Demo04 {
    public static void main(String[] args) {
        //++    --  自增  自减  一元运算符
        int a = 3;
        int b = a++;    //先赋值再自增
        int c = ++a;    //先自增再赋值

        System.out.println(a);
        System.out.println(b);
        System.out.println(c);

        //幂运算   2^3=2*2*2=8
        double pow = Math.pow(2, 3);
        System.out.println(pow);
    }
}