Question

Write a Java program that has the following methods:

• findSum - a method that takes in three integers and returns the sum of these three integers;
• findAverage - a method that takes in three integers and returns the average of these three integers (as a double value)

Within the main method read in 3 integers from the user and call above two methods by passing the three integers. Your program should print the user provided three integers and results of above two methods.

Answer 1

//TestCode.java
import java.util.Scanner;

public class TestCode {
    public static int findSum(int n1, int n2, int n3){
        return n1+n2+n3;
    }

    public static double findAverage (int n1, int n2, int n3){
        return (n1+n2+n3)/3.0;
    }

    public static void main(String[] args)
    {
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter three numbers: ");
        int n1, n2, n3;
        n1 = scanner.nextInt();
        n2 = scanner.nextInt();
        n3 = scanner.nextInt();

        System.out.println("Sum = "+findSum(n1,n2,n3));
        System.out.println("Average = "+findAverage(n1,n2,n3));
    }
}