Use FOR LOOP to write a Java program to calculate the sum of all numbers from 1 to a given positive number inclusive. Name the class as Sum, declare a field as sum, initialize sum in the constructor, and name the method as sumOfNumbers. Display the result as string. Comments are required to explain the code. Maximum 10 points will be deducted if the comments are not included or not completed. Directly copy the source code and paste into your solution. Screenshot is required to show your running result.
Question: Use FOR LOOP to write a Java program to calculate the sum of all numbers from 1 to a given positi……
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Sum.java
public class Sum {
private int sum;
//constructor with one argument
Sum(int sum){
this.sum = sum;
}
//find the sum of numbers from 1 to the given number
public String sumOfNumbers(int sum){
//first initialize the result with 0
int result = 0;
//loop from 1 to the number
for(int i = 1 ; i <= sum ; i++){
//add each number in the result
result += i;
}
//return the result in the string format
return String.valueOf(result);
}
}
Main.java
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int sum1;
System.out.println("Enter the number: ");
//get the number from user
sum1 = sc.nextInt();
//pass that number in constructor
Sum sum = new Sum(sum1);
//prints the sum of all numbers
System.out.println("Sum of all numbers from 1 to " + sum1 + " is: " + sum.sumOfNumbers(sum1));
}
}
Output:
