关于clone困惑了！

[malong_01223]

class Student {
	public String name ;
	public Student (String name ){
		this.name =name;
	}
}
class Employee implements Cloneable{
	public String str = new String("welcome");
	public int i = 0;
	public Student s = null;
	public Object clone(){
		Object clone=null;
		try{
			clone = super.clone();
		}catch(Exception e){
			e.printStackTrace();
		}
		return clone;
	}
}
public class Test {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Employee e1 = new Employee();
		e1.s = new Student("leon");
		Employee e2 = (Employee)e1.clone();
		System.out.println(e1.str);
		System.out.println(e1.i);
		System.out.println(e2.str);
		System.out.println(e2.i);
		System.out.println(e2.s.name);
		e1.str = "hello";
		e1.i = 2;
		e1.s = new Student("solog");
		System.out.println("--------------------");
		System.out.println(e1.str);
		System.out.println(e1.i);
		System.out.println(e2.str);
		System.out.println(e2.i);
		System.out.println(e2.s.name);//注释a
	}

}

这样不是浅克隆么？按理说 注释a 那一段应该变化为solog，为什么还是leon呢。

[kevinchj]

那就不是浅拷贝了……
是深拷贝了

[吴冬冬]

因为e2克隆的只是new Student（"leon"）的引用
e1.s = new Student("solog");只是指向另一个对象
而e2.s仍然指向new Student（"leon"）这个对象

[吴冬冬]

		Employee e1 = new Employee();
        e1.s = new Student("leon");
        Employee e2 = (Employee)e1.clone();
        System.out.println(e1.str);
        System.out.println(e1.i);
        System.out.println(e2.str);
        System.out.println(e2.i);
        System.out.println(e2.s.name);
        e1.str = "hello";
        e1.i = 2;
        //e1.s = new Student("solog");
        e1.s.name="solog";
        System.out.println("--------------------");
        System.out.println(e1.str);
        System.out.println(e1.i);
        System.out.println(e2.str);
        System.out.println(e2.i);
        System.out.println(e2.s.name);//注释a

这样的结果e2.a.name就是solog了

[kevinchj]

看错了……实在不好意思……
楼上满分！
还有疑问继续问。