Questions on operators

 package com.company;

public class CWH_09_Precedence {
    public static void main(String[] args) {
//        int a= 654+6;
//        float b= 6.54f+6;
//        char ch='r';
//        int x= ch+4;
//        System.out.println(x);
//        int x=54;
//        x++;
//        System.out.println(x--);

//        Quiz
        int a=7;
        int x= ++a *8;
        System.out.println(x);

        int b=7;
        int y= b++ *8;
        System.out.println(y);
        System.out.println(b);

    }
}