Java Program to Add Two Integers

To understand this example, you should have the knowledge of the following Java programming topics:


Example: Program to Add Two Integers

class Main {

  public static void main(String[] args) {
    
    int first = 10;
    int second = 20;

    // add two numbers
    int sum = first + second;
    System.out.println(first + " + " + second + " = "  + sum);
  }
}

Output:

10 + 20 = 30

In this program, two integers 10 and 20 are stored in integer variables first and second respectively.

Then, first and second are added using the + operator, and its result is stored in another variable sum.

Finally, sum is printed on the screen using println() function.


Also Read:

Before we wrap up, let’s put your knowledge of Java Program to Add Two Integers to the test! Can you solve the following challenge?

Challenge:

Write a function to add 10 to a given number.

  • Add 10 to number and return the result.
  • For example, if number = 5, the expected output is 15.
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