import java.util.Arrays; // Importing used class only
 
public class Main {
    /**
     * Calculates the average of given integer array.
     * @param Numbers Array of integers to calculate
     * @return {int} Rounded average of all numbers on the array
     */
    public static int IntAverage(int[] Numbers) {
        double Result = 0; // Initializing with a value
        // Decrescent loop is a little bit faster
        for (int Index = Numbers.length - 1, Limit = - 1; Index > Limit; Index--) {
            Result += Numbers[Index];
        }
        // Typecast already rounds number
        return (int) (Result / Numbers.length); 
    }
 
    public static void main(String[] args) {
        int[] TestValues = {2, 3, 5, 7, 11, 13, 17, 19, 23}; // Pre-defined test values
        // Printing output to console
        System.out.println("Numbers: " + Arrays.toString(TestValues));
        System.out.println("Average: " + IntAverage(TestValues));
        System.out.println(); // Empty line after execution
    }
}

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