/**
 * Title:        Chapter 4, "Methods"
 * Description:  Examples for Chapter 4
 * Copyright:    Copyright (c) 2000
 * Company:      Armstrong Atlantic State University
 * @author Y. Daniel Liang
 * @version 1.0
 */

// TestPassByValue.java: Demonstrate passing values to methods
// package chapter4;

public class TestPassByValue
{
  /**Main method*/
  public static void main(String[] args)
  {
    // Declare and initialize variables
    int num1 = 1;
    int num2 = 2;

    System.out.println("Before invoking the swap method, num1 is " +
      num1 + " and num2 is " + num2);

    // Invoke the swap method to attempt to swap two variables
    swap(num1, num2);

    System.out.println("After  invoking the swap method, num1 is " +
      num1 + " and num2 is " + num2);
  }

  /**The method for swapping two variables*/
  static void swap(int n1, int n2)
  {
    System.out.println("    Inside the swap method");
    System.out.println("    Before swapping n1 is " + n1
      + " n2 is " + n2);

    // Swapping n1 with n2
    int temp = n1;
    n1 = n2;
    n2 = temp;

    System.out.println("    After  swapping n1 is " + n1
      + " n2 is " + n2);
  }
}