for example, counter, sum, percen average

import java.util.Scanner;

public class ForExample {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int c = 0;
        int sum = 0;
        int i;
        for (i = 0; i < 4; i += 1) {

            System.out.print("Enter a number: ");
            int x = in.nextInt();

            if (x > 7) {
                c = c + 1;
                sum = sum + x;
            }
        }

        System.out.println("Count = " + c);
        System.out.println("percentage = " + 100.0 * c / i + "%");

        System.out.println("\nSum = " + sum);
        double avg = (double) sum / c;
        avg = Math.round(avg); // (int)(avg*10)/10.0;

        System.out.println("Average = " + avg);

        in.close();

    }

}