Question

Create a new Java class called AverageWeight. Create two arrays: an array to hold 3 different names and an array to hold their weights. Use Scanner to prompt for their name and weight and store in correct array. Compute and print the average of the weights entered using printf command. Use a loop to traverse and print the elements of each array or use Arrays class method to print. Submit your code.

We are using blueJ for my java class, if you can help me id greatly appreciate it.

Answer 1

CODE:

import java.util.Scanner;

public class AverageWeight {
    public static void main(String[] args){
        //declaring a scanner class object
        Scanner sc = new Scanner(System.in);
        //declaring two arrays of length 3
        String[] names = new String[3];
        double[] weights = new double[3];
        double average = 0.0;
        //a loop which runs 3 times
        for(int i=0;i<3;i++){
            //asking the name
            System.out.println("Enter name: ");
            names[i] = sc.nextLine();
            //asking the weight
            System.out.println("Enter "+names[i]+"'s weight: ");
            weights[i] = Double.parseDouble(sc.nextLine());
            //adding all the weights for the average
            average += weights[i];
        }
        //calculating the average weight
        average = average/3.0;
        //printing the average weight
        System.out.printf("The average of all weights %.2f \n\n",average);
        //printing the contents of both the array
        for(int i=0;i<3;i++){
            System.out.printf("Name - %s\t Weight: %.2f\n",names[i],weights[i]);
        }

    }
}

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CODE IMAGES:

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OUTPUT:

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Feel free to ask any questions in the comments section

Thank You!