Average returns 0

[jehduncs]

Im trying to get the average of number of marks divded by the total marks such as 3 marks of 10, 10 and 10 and have the total marks 50 so 30/50

import java.util.Scanner;
public class MarksAverage
{

	public static void main(String[] args) 
	{
		Scanner input = new Scanner(System.in);
		
		System.out.print("How many scores will be entered? ");
		int numTests = input.nextInt();
		
		
		int [] marks = new int [numTests];
		
		for(int counter =0; counter < marks.length; counter++)
		{
			System.out.print("Enter mark # "+ (counter+1) + ":");
			marks[counter] = input.nextInt();
		}

		int runningTotal = 0;
		
		for(int counter = 0; counter < marks.length; counter++)
		{			
			runningTotal += marks[counter];
			//calculate average after the loop
		}//end for
		
		//calculate average
		
		System.out.print("What is the worth of all marks");
		int marksWorth = input.nextInt();
		
		int average = (int) (runningTotal / marksWorth) * 100;
	
		
	
		System.out.println(average);
	}

}

[Fubarable]

You seem to be doing int division -- an int divided by an int -- which will always result in an int. So 3/6 will give 0, and 5/3 will give one. The solution is to use double by casting one of the ints to double:

double average = (double) myIntA / myIntB;

[jehduncs]

thank you, works perfectly:)