Addition of 2 numbes in Java

 Addition of 2 numbes in Java

Program:

public class AddTwoNumbers {

    public static void main(String[] args) {

        // Define two integer variables

        int number1 = 5;

        int number2 = 10;

        

        // Add the two numbers

        int sum = number1 + number2;

        

        // Print the result

        System.out.println("The sum of " + number1 + " and " + number2 + " is: " + sum);

    }

}

 Explanation:

1. **Variable Declaration**: 

   - `int number1 = 5;`: Declares an integer variable `number1` and initializes it to `5`.

   - `int number2 = 10;`: Declares an integer variable `number2` and initializes it to `10`.

2. **Addition**:

   - `int sum = number1 + number2;`: Adds `number1` and `number2` together and stores the result in `sum`.

3. **Output**:

   - `System.out.println("The sum of " + number1 + " and " + number2 + " is: " + sum);`: Prints out the sum of `number1` and `number2` along with a descriptive message.

Output:

When you run this program, the output will be:

The sum of 5 and 10 is: 15

Brief explanation:

public class AddTwoNumbers {

    public static void main(String[] args) {

        // Code goes here

    }

}

 Explanation:

1.`public class AddTwoNumbers {`**:

   - `public class`: This keyword `public` is an access specifier, which means the class `AddTwoNumbers` is accessible from any other class.

   - `AddTwoNumbers`: This is the name of the class. In Java, classes are templates or blueprints for objects. Here, `AddTwoNumbers` is the class where the main logic of adding two numbers will be implemented.

2.`public static void main(String[] args) {`**:

`public static void main`: 

This line is a method signature. In Java, `main` is the entry point for any standalone Java application. When you execute a Java program, the runtime environment starts by calling the `main` method.

`String[] args`: 

`args` is a parameter to the `main` method. It's an array of strings that allows the command-line arguments to be passed into the Java program when it is executed.

Key Points:

*Access Modifiers (`public`):

 In Java, `public` is an access modifier that means the method or class is accessible from any other class. It is the most open access level.

  

*Static Method: 

The `main` method is `static`, which means it belongs to the class itself rather than to instances of the class. This allows Java to call `main` without having to instantiate an object of the class.

*Return Type (`void`): 

`void` indicates that the `main` method does not return any value. It simply performs a task, in this case, running the application.

*Arguments (`String[] args`): 

`args` is an array of strings that allows the Java application to accept command-line arguments. These arguments are passed to the program when it is executed from the command line.

 Usage:

This structure is fundamental in Java programming. You define classes using `public class`, and the `main` method serves as the entry point for execution of the program, where you can start writing your program logic.