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Finding the sum of two numbers is simple, but it can get tedious if the numbers are big. Here is how you can create a Java program to find the sum of two numbers.

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Steps

  1. Find the Sum of Two Numbers in Java Step 1 Version 2.jpg
    1
    Plan your program. Finding the sum of two numbers isn't difficult, but it is always a good practice to plan your program before beginning to code. Understand that you'd need two inputs/ parameters from the user for this program: the two numbers.
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  2. Find the Sum of Two Numbers in Java Step 2 Version 2.jpg
    2
    Write the code. Finding the sum of two numbers means the simple addition of both the numbers.
    • Create a separate variable to store the value of the sum. This can be of the type int.
    • The formula to find the sum is:

      Sum = First Number + Second Number
    • To get these parameters (inputs) from the user, try using the Scanner function in Java.
  3. Find the Sum of Two Numbers in Java Step 3 Version 2.jpg
    3
    Display the output. Once the program has calculated the sum, display it to the user. Use the System.out.print or System.out.println (to print on a new line) function, in Java, for this.
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Sample Code

import java.util.Scanner;
 
public class main_class {
    public static void main(String[] args){
      int sum = 0, firstNumber, secondNumber;
      Scanner inputNumScanner = new Scanner(System.in);
      System.out.println("Enter First Number: ");
      firstNumber = inputNumScanner.nextInt();
 
      System.out.println("Enter Second Number: ");
      secondNumber = inputNumScanner.nextInt();
 
      sum = firstNumber + secondNumber;
 
      System.out.println("The sum of the two numbers you entered = " + sum);
    }
}

Tips

  • Try expanding your program to perform multiple mathematical calculations.
  • Try making a GUI, which will make the program much more interactive and easier to use.

Related wikiHows

How to
Sum the Integers from 1 to N

How to
Add Binary Numbers

How to
Add Two Numbers in Visual Basic

How to
Add Two Numbers in Visual Basic.NET

Article Info

Categories: Java

In other languages:

Español: encontrar la suma de dos números en Java, Italiano: Calcolare la Somma di Due Numeri in Java, Русский: найти сумму двух чисел в Java, Português: Encontrar a Soma de Dois Números no Java

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