prog9_7.java

初学者很好的一本入门书籍

public class Prog9_7
{
	public static void main(String argv[])
	{
		MyObject obj1 = new MyObject(1);
		MyObject obj2 = obj1;

    System.out.println("obj1's data="+obj1.data);
		System.out.println("obj2's data="+obj2.data);
		System.out.println("after...");

		obj2.data=3;
    System.out.println("obj1's data="+obj1.data);
    System.out.println("obj2's data="+obj2.data);
	}
}