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Arrays

Java Program to Calculate Average Using Arrays

A Java program to calculate the average of numbers using an array.

Problem Description

Write a Java program to calculate the average value of array elements.

Code

AverageArray.java
public class AverageArray {
    public static void main(String[] args) {
        double[] numArray = { 45.3, 67.5, -45.6, 20.34, 33.0, 45.6 };
        double sum = 0.0;

        for (double num : numArray) {
            sum += num;
        }

        double average = sum / numArray.length;
        System.out.format("The average is: %.2f", average);
    }
}

Output

The average is: 27.69

Explanation

  1. Enhanced For Loop: Iterates through each element of the array.
  2. Sum: Accumulates the sum of all elements.
  3. Average: Divides the sum by the number of elements (numArray.length).

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