boxpassing.java

国外的数据结构与算法分析用书

public class BoxPassing
{
	/**	Main program. */
	public static void main(String[] args)
	{
		int x = 5;
		BasicBox myBox = new BasicBox(2, 3, 4);
		
		System.out.println("Inside main method");
		System.out.println("Variable x = " + x);
		System.out.println("Variable myBox = \n" + myBox.toString());
		makeChanges(x, myBox);
		System.out.println("\nNow back in the main method");
		System.out.println("Variable x = " + x);
		System.out.println("Variable myBox = \n" + myBox.toString());
		newBox(myBox);
		System.out.println("After using the newBox method");
		System.out.println("Variable myBox = \n" + myBox.toString());
	}

	public static void newBox(BasicBox myBox)
	{
		myBox = new BasicBox(60, 70, 80);
	}

	public static void makeChanges(int x, BasicBox changeBox)
	{
		System.out.println("Now inside makeChanges method - Doing Changes");
		x = x + 4;
		changeBox.length = 10;
		changeBox.width = 20;
		changeBox.height = 30;
		System.out.println("Variable x = " + x);
		System.out.println("Variable changeBox = \n" + changeBox.toString());
		System.out.println("Now leaving makeChanges method");
	}
}