java ++和--

public class Sample {

    public static void main(String[] args) {
        int num1 = , num2 = ;
        int num3 = , num4 = ;
        System.out.println(num1++);
        System.out.println(num1++);
        System.out.println(num1);
        System.out.println(++num2);
        System.out.println(num2);
        System.out.println(num3--);
        System.out.println(num3);
        System.out.println(--num4);
        System.out.println(num4);
    }
}

OUTPUT: