Java Input and Arithmetic

This tutorial is a simple Java program that asks the user for two numbers, adds them together, and outputs the result.

1. Create a new Java project in VS Code.
2. Create a new Java file named AddExample.java, where you will type the code below.

3. Import the Scanner class. This built-in Java class lets you accept input from the user.
   

   import java.util.Scanner;
   

4. Start the class definition. It must match the filename. The curly bracket indicates the start of the program.
   

   public class AddExample {
   

5. Inside the class definition, declare a main method. This method is the first method that the Java interpreter calls.
   

     public static void main(String[] args) {
   

6. Inside the main method definition, create a Scanner object named s. This object will accept input from the user.
   

       Scanner s = new Scanner(System.in);
   

7. Output a line that asks the user to enter two numbers.
   

       System.out.print("Please enter two numbers: ");
   

8. Use the Scanner object to read in two integers and store them in two integer variables x and y.
   

       int x = s.nextInt();
       int y = s.nextInt();
   

9. Use arithmetic to add x and y and store the result in an integer variable z.
   

       int z = x + y;
   

10. Output the result.
    

        System.out.println("The sum is " + z);
    

11. Close the main method definition with the ending curly brace.
    

      }
    

12. Close the class definition with the ending curly brace.
    

    }
    

13. Now run your program to see the result.

Congratulations!

You have written a Java program to accept two numbers from the user, add them, and output the result.

Thanks for reading. 😃

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