Find Array Average in Java()

Step 1: Define the Function

First, you must define the function. Let's call it findArrayAverage. This function will take an array of integers as a parameter. For now, the function doesn't need to do anything.

public static double findArrayAverage(int[] numbers){
    // Function body goes here
}

Step 2: Initialize a Variable to Keep Sum

Inside the function, you need to define a variable that will keep the sum of all the numbers in the array. We'll call this variable sum and initialize it to 0.

public static double findArrayAverage(int[] numbers){
    double sum = 0;
    // Code to calculate sum goes here
}

Step 3: Calculate the Sum of Array Elements

Now, use a for loop to iterate over each number in the array and add it to the sum.

public static double findArrayAverage(int[] numbers){
    double sum = 0;
    for (int number : numbers) {
        sum += number;
    }
    // Code to calculate average goes here
}

Step 4: Calculate the Average

After you've summed all the numbers, you can calculate the average by dividing the sum by the length of the array.

public static double findArrayAverage(int[] numbers){
    double sum = 0;
    for (int number : numbers) {
        sum += number;
    }
    double average = sum / numbers.length;
    // Return statement goes here
}

Step 5: Return the Average

Finally, return the calculated average from the function.

public static double findArrayAverage(int[] numbers){
    double sum = 0;
    for (int number : numbers) {
        sum += number;
    }
    double average = sum / numbers.length;
    return average;
}

This is a complete function that will calculate and return the average of an array of integers in Java.

With this function in place, you can now calculate the average of any array of integers by calling findArrayAverage() and passing the array as argument.