XCopy Program

package com.samkough.headfirst;

public class XCopy
{
	public static void main(String args[])
	{
		int orig = 42;

		XCopy x = new XCopy();

		int y = x.go(orig);

		System.out.println(orig + " " + y);
	}

	public int go(int arg)
	{
		arg = arg * 2;

		return arg;
	}
}