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Create a class for a calculator in Java

Create a class for a calculator - Java:

* This class is used to calculate the sum of two numbers.
* @author 
* @version 1.0
public class AddNumbers {
   * This method add two integers.
   * @param numberOne first param to add.
   * @param numberTwo second param to add.
   * @return int Obtains the sum of numberOne and numberTwo.
   public int addIntegers(int numberOne, int numberTwo) {
       //Variable to store the total sum
       int total = 0;
       //Sum the two numbers
       total = numberOne+ numberTwo;
       //Return the total
       return total;

   * One Example
   public static void main(String args[]) throws IOException {

      AddNumbers  addNumbers= new AddNumbers ();
      int sum = addNumbers.addIntegers(10, 20);
      System.out.println("Sum of 10 and 20 is :" + sum); //30
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