Calculating the Sum of Two Numbers

 Introduction:

Welcome back to our programming journey! In this blog post, we'll take a practical step forward and explore how to write a Java program that calculates the sum of two numbers. This simple yet essential program will help you understand user input, basic arithmetic operations, and the structure of a Java application.

Understanding the Problem:

Imagine you have two numbers, num1 and num2, and you want to find their sum. This problem might sound trivial, but it lays the foundation for more complex programs that involve user interactions and mathematical computations.

Run this Code :-

// import Scanner class to take inputs from the user.
import java.util.Scanner;
public class sum {
public static void main(String[] args) {
// create a object of Scanner class
Scanner sc = new Scanner(System.in);
System.out.print("Enter the first number: ");
double num1 = scanner.nextDouble();
System.out.print("Enter the second number: ");
double num2 = scanner.nextDouble();
double sum = num1 + num2;
System.out.println("The sum of " + num1 + " and " + num2 + " is: " + sum);
scanner.close();
}
}

Output:-

Enter first number: 48

Enter second number: 94

The sum of 48 and 94 number is: 142

In this program, we use the Scanner class to obtain user input from the console. We then perform the addition operation and display the result.

Understanding the Code:-

1. `import java.util.Scanner;:` This line imports the `Scanner` class, which we'll use to read user             input.

2. `Scanner scanner = new Scanner(System.in);`: We create a `Scanner` object named `scanner`          to read input from the console.

3. `double num1 = scanner.nextDouble(); and double num2 = scanner.nextDouble();`:  We                     prompt  the user to enter two numbers, which are stored in the variables `num1` and `num2`.

4. `double sum = num1 + num2;`: We calculate the sum of the two numbers.

5. `System.out.println("The sum of " + num1 + " and " + num2 + " is: " + sum);`: We            display the result using `System.out.println()`.

6. `scanner.close();`: We close the `Scanner` object to free up system resources.

Running Your Program:-

1. Save the code in a file named `SumCalculator.java`.

2. Open a terminal/command prompt and navigate to the directory containing the file.

3. Compile the code: `javac SumCalculator.java`

4. Run the program: `java SumCalculator`

Conclusion:-

Congratulations! You've successfully written a Java program that calculates the sum of two numbers. This seemingly basic program introduces you to input handling, variable usage, arithmetic operations, and console output. As you continue your programming journey, remember that even the simplest programs lay the groundwork for more complex projects. Stay tuned for more programming insights and tutorials on our blog! 

Thank you for reading this blog and i will see you next time. If you have any type of problem related to this topic or another topic then you can ask from me, i will give my 100% to solve your problem.