How to divide elements in two different arrays

I am using an array to store 5 test scores. Then I have another array for the total possible score the test could have. I just need to find out what percent the grade is out of the total possible score.

Code :

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public class Main {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        int[] grade = new int[5];
        int[] outOf = new int[5];
        int[] percents = new int[5];
 
 
        int total = 0;
        int average;
        int percent;
 
        grade[0] = 70;
        grade[1] = 65;
        grade[2] = 120;
        grade[3] = 150;
        grade[4] = 30;
 
        outOf[0] = 210;
        outOf[1] = 100;
        outOf[2] = 150;
        outOf[3] = 200;
        outOf[4] = 50;
 
        for(int i=0;i<grade.length;i++)
        {
            total += grade[i];
 
        }
 
        average = total / 5;
 
        System.out.println("The total is " + total + "\nThe"
                + " average is " + average);
        }
 
        for(int j=0;j<grade.length;j++)
        {
 
 
        }
}

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Quote:

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I just need to find out what percent the grade is out of the total possible score.

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Divide one by the other and multiply by 100.

Just a recommendation, but using an Object Oriented approach you could get the results fairly easily. For example, if you created a class called Test that contains the score and total possible score - the data is inherently packaged together in a way than can be easily understood and manipulated.

Yeah I know thats the formula on how to get the percent, but I dont know how to implement that. I have tried:

Code :

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         percents[0] = (grade[0] / outOf[0]) * 100;
 
        System.out.println(percents[0]);

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I am getting 0 as an output though. Why is this?

grade[0] = 70;
outOf[0] = 210;
As you are using Integers:

70/210 will give you 0.

0 * 100 will give you 0.

You have to use floats or doubles instead. Integer doesn't provide you anything after decimal point.