TASK 5. Methods Overloading. Review Methods, Implement the following code, test it with different input, make sure it runs without errors.

Solution:

Java code:

Main.java

import java.util.Scanner;

public class Main{
 public static void main(String[] args) {
     Scanner sc = new Scanner(System.in);
     
     // Prompt the user to enter number of Integer
     System.out.println("Enter the number of integers you will provide: ");
     int num = sc.nextInt();
     
     // Prompt the user to enter first Integer
     System.out.println("Enter the value of \'a\' and press Enter: ");
     int a = sc.nextInt();
     
     // Prompt the user to enter second Integer
     System.out.println("Enter the value of \'b\' and press Enter: ");
     int b = sc.nextInt();
     
     if(num >= 3){
     
         // Prompt the user to enter third Integer
         System.out.println("Enter the value of \'c\' and press Enter: ");
         int c = sc.nextInt();
         
         if(num == 3){
         
             // Display result of three number sum
             System.out.printf("Provided Integers: %4d and %4d and %4d, the total is %5d\n",a, b, c ,sum(a, b, c));
         }
         else if ( num== 4){
             
             System.out.println("Enter the value of \'d\' and press Enter: ");
             int d = sc.nextInt();
             // Display result for four number sum
             System.out.printf("Provided Integers: %4d and %4d and %4d and %4d, the total is %5d\n",a, b, c, d ,sum(a, b, c, d));
         }
     }
     else{
         
         // Display result of 2 number sum
          System.out.printf("Provided Integers: %4d and %4d, the total is %5d\n",a, b,sum(a, b));
     }
     
 }
 
 //this method return the sum of two number
 public static int sum(int num1, int num2){
     return num1+num2;
 }
 
 //this method returns the sum of three numbers
 public static int sum(int num1, int num2, int num3){
     return num1+num2+num3;
 }
 
 //this method returns the sum of four numbers
 public static int sum(int num1, int num2, int num3, int num4){
     return num1+num2+num3+num4;
 }
}