my first java program successful : exam mark percentage.

package com.company;
import java.util.Scanner;
public class tut4 {
    public static void main(String[]args){
        int math=10;
        int eng=5;
        int hind=2;
        int sci= 1;
        int sum=math + eng + hind+ sci;
        System.out.print("the sum is:");
        System.out.println(sum);
        System.out.println(" the percenteges is:% ");
        int per = sum * 100/20 ;

        System.out.println(per);
    }
}

output

the sum is:18

 the percenteges is:% 

90