Write a Java program to calculate the sum of two numbers?


Here is a simple Java program that calculates the sum of two numbers:

```java
import java.util.Scanner;

public class SumOfTwoNumbers {
    public static void main(String[] args) {
        // Create a scanner object to read input
        Scanner scanner = new Scanner(System.in);

        // Prompt the user to enter the first number
        System.out.print("Enter the first number: ");
        int num1 = scanner.nextInt();

        // Prompt the user to enter the second number
        System.out.print("Enter the second number: ");
        int num2 = scanner.nextInt();

        // Calculate the sum of the two numbers
        int sum = num1 + num2;

        // Output the result
        System.out.println("The sum of " + num1 + " and " + num2 + " is: " + sum);

        // Close the scanner
        scanner.close();
    }
}
```

### How the program works:
1. The program uses the `Scanner` class to take input from the user.
2. It prompts the user to input two integers.
3. It calculates the sum of the two numbers using the `+` operator.
4. Finally, it displays the result using `System.out.println()`.

### Sample output:
```
Enter the first number: 5
Enter the second number: 7
The sum of 5 and 7 is: 12
```

Would you like further details on how this program works or help with anything else?

Here are a few related questions:

1. How can this program be modified to handle floating-point numbers?
2. What is the purpose of the `Scanner` class in Java?
3. How do you ensure error handling for invalid input in Java?
4. How can this program be extended to calculate the sum of more than two numbers?
5. How would you implement this program using a method to calculate the sum?

**Tip:** Always close the `Scanner` object after using it to avoid potential memory leaks.

Write a Java program to calculate the sum of two numbers.

Learn how to write a simple Java program to calculate the sum of two numbers. This problem involves basic arithmetic operations and teaches how to handle user input using Java’s Scanner class. Suitable for beginners or students in Grades 4-6.

Math Problem Statement

Solution

Ask a new question for Free

By Image

Math Problem Analysis

Mathematical Concepts

Formulas

Theorems

Suitable Grade Level

Related Recommendation