objcompare.java

Java面向对象编程(随书配套源代码) 阐述了面向对象编程的思想

package chapter4;

public class ObjCompare 
{
	String str = "";
	public ObjCompare(String str)
	{
		str = "";
	}
	
	public static void main(String args[])
	{
		ObjCompare obj1 = new ObjCompare("12345");
		ObjCompare obj2 = obj1;
		
		//ObjCompare obj2 = new ObjCompare("12345");
		
		if(obj1==obj2)
		{
			System.out.println("1");
		}
		if(obj2.equals(obj1))
		{
			System.out.println("2");
		}
		String str1 = "12345";
	}
}