Question

14.5 Prog 5: People's weights (arrays) JAVA

(1) Prompt the user to enter five numbers, being five people's weights. Store the numbers in an array of doubles. Output the array's numbers on one line, each number followed by one space. (2 pts)

Ex:

Enter weight 1:
236.0
Enter weight 2:
89.5
Enter weight 3:
142.0
Enter weight 4:
166.3
Enter weight 5:
93.0
You entered: 236.0 89.5 142.0 166.3 93.0

(2) Also output the total weight, by summing the array's elements. (1 pt)

(3) Also output the average of the array's elements. (1 pt)

(4) Also output the max array element. (2 pts)

Ex:

Enter weight 1:
236.0
Enter weight 2:
89.5
Enter weight 3:
142.0
Enter weight 4:
166.3
Enter weight 5:
93.0
You entered: 236.0 89.5 142.0 166.3 93.0

Total weight: 726.8
Average weight: 145.35999999999999
Max weight: 236

Answer 1

import java.util.Scanner;

public class PeopleWeights {
    //Main1 method
    public static void main(String[] args) {
        //Array to hold weights
        double[] weights = new double[5];
        int i;
        double total = 0, average, max = 0;

        Scanner sc = new Scanner(System.in);

        //Reading 5 weights from user
        for (i = 0; i < 5; i++) {
            System.out.println("Enter weight " + (i + 1) + ": ");
            //Storing weights in array
            weights[i] = sc.nextDouble();
        }

        //Printing, calculating total and average of weights
        System.out.print("You entered: ");
        for (i = 0; i < 5; i++) {
            //Printing each weight
            System.out.print(" " + weights[i]);
            //Calculating total weight
            total += weights[i];
            //Finding findMaximumIndex weight
            if (weights[i] > max)
                max = weights[i];
        }
        average = total / 5.0;

        //Printing total weight
        System.out.println("\n\nTotal weight: " + total);

        //Printing average weight
        System.out.println("Average weight: " + average);

        //Printing max weight
        System.out.println("Max weight: " + max);
    }
}