Question

I need to Write a test program that prompts the user to enter 10 double values into an array, calls a method to calculate the average of the numbers, and displays the average. Next, write a method that returns the lowest value in the array and display the lowest number. The program should then prompt the user to enter 10 integer values into an array, calculates the average, and displays the average. The program should have two overloaded methods to calculate the average of the numbers using the following:

   public static double average(double[ ] array)

public static int average(int[ ] array)

The final method should include:

public static double minimum(double[ ] array)

Answer 1

import java.util.Scanner;

public class AverageAndMin {

    public static double average(double[] array) {
        double total = 0;
        for (int i = 0; i < array.length; i++) {
            total += array[i];
        }
        return total / array.length;
    }

    public static double minimum(double[] array) {
        double num = array[0];
        for (int i = 0; i < array.length; ++i) {
            if (array[i] < num) {
                num = array[i];
            }
        }
        return num;
    }

    public static int average(int[] array) {
        int total = 0;
        for (int i = 0; i < array.length; i++) {
            total += array[i];
        }
        return total / array.length;
    }

    public static int minimum(int[] array) {
        int num = array[0];
        for (int i = 0; i < array.length; ++i) {
            if (array[i] < num) {
                num = array[i];
            }
        }
        return num;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        double[] numbers = new double[10];
        System.out.print("Enter 10 doubles: ");
        for (int i = 0; i < numbers.length; ++i) {
            numbers[i] = in.nextDouble();
        }
        System.out.println("Average = " + average(numbers));
        System.out.println("Minimum = " + minimum(numbers));

        int[] integers = new int[10];
        System.out.print("Enter 10 integers: ");
        for (int i = 0; i < integers.length; ++i) {
            integers[i] = in.nextInt();
        }
        System.out.println("Average = " + average(integers));
        System.out.println("Minimum = " + minimum(integers));
    }
}