HOW can u calculate the average it wont calculate

Question

import java.util.*;
public class Percentage
public static void main (String [] args)
System.out.println("Enter marks (value < 0 to stop");
int totalMarks = 0;
int numberOfMarks = 0;
Scanner input= new Scanner (System.in);
int nextMark = input.nextInt();
while (nextMark >= 0)
totalMarks += nextMark;
numberOfMarks++;
System.out.println("Next mark:");
nextMark = input.nextInt();
if ( numberOfMarks > 70)
int average = (totalMarks/numberOfMarks*100);
System.out.println (" Average is");
}

Answer 1

Compile error!?! You're regressing!
    public static void main(String[] args) {
        System.out.println("Enter marks (value < 0 to stop");
        int totalPassingScores = 0;
        int totalScores = 0;
        Scanner input = new Scanner(System.in);
        double nextMark = input.nextDouble();
        while (nextMark >= 0) {
            totalScores++;
            System.out.println("Next mark:");
            nextMark = input.nextDouble();
            if (nextMark > 70) {
                totalPassingScores++;
        double percentPassed = (float) totalPassingScores / (float) totalScores * 100.0;
        System.out.println("Number of passing scores: " + percentPassed);
    }