class Teacher{4>B
String name;li\
int age;AgDu~g
Teacher(String name,int age){y
this.name=name;T
this.age=age; }?afP
}©达内IT技术论坛—中国人学Java、学C++、学C#/.Net、学软件、学IT的地方 -- 达内科技论坛 p#j2q0
class Student implements Cloneable{H=x\,
String name;?]
int age;<
Teacher t;//学生1和学生2的引用值都是一样的。<0ptC2
Student(String name,int age,Teacher t){Z
this.name=name;?>daz.
this.age=age;wnC`
this.t=t;-6
}Ls>
public Object clone(){-[HYy/
Student stu=null;s\(.G
try{q stu=(Student)super.clone();~&9
}catch(CloneNotSupportedException e){a>g
e.printStackTrace();`DI
}]Wwt
stu.t=(Teacher)t.clone();V$
return stu;-Jdj"M
}]a5gf
public static void main(String[] args){M Teacher t=new Teacher("tangliang",30);LOy9%
Student s1=new Student("zhangsan",18,t);6=<;
Student s2=(Student)s1.clone();
s2.t.name="tony";QpSIF5
s2.t.age=40;u
System.out.println("name="+s1.t.name+","+"age="+s1.t.age);&Yd;
//学生1的老师成为tony,age为40。9
}>
}©达内IT技术论坛—中国人学Java、学C++、学C#/.Net、学软件、学IT的地方 -- 达内科技论坛 TFmz-
jY
那应该如何实现深层次的克隆，即修改s2的老师不会影响s1的老师？代码改进如下。{p`
class Teacher implements Cloneable{6"CJU
String name;Q,1Q/
int age;1$
Teacher(String name,int age){Rd
this.name=name;9+>
this.age=age;T}<
}#2@N
public Object clone(){sC
Object obj=null;@
try{L"{
obj=super.clone();7;[WA
}catch(CloneNotSupportedException e){T
e.printStackTrace();H9XP<7
}
return obj;VTf.C
}Acb=
}©达内IT技术论坛—中国人学Java、学C++、学C#/.Net、学软件、学IT的地方 -- 达内科技论坛 dtzkF,
©达内IT技术论坛—中国人学Java、学C++、学C#/.Net、学软件、学IT的地方 -- 达内科技论坛 "tYclass Student implements Cloneable{`3kBU
String name;y
int age;jn>
Teacher t;zS_~)P
Student(String name,int age,Teacher t){f5'qD
this.name=name;b
this.age=age;?= jc
this.t=t;-(Dt6(
}5
public Object clone(){.A
Student stu=null;8rB!l7
try{2'{<-}
stu=(Student)super.clone();.!58X@
}catch(CloneNotSupportedException e){T
e.printStackTrace();$:
}D^
stu.t=(Teacher)t.clone();R_?yP
return stu;!d=
}8o_b
}©达内IT技术论坛—中国人学Java、学C++、学C#/.Net、学软件、学IT的地方 -- 达内科技论坛 drr
public static void main(String[] args){2
Teacher t=new Teacher("tangliang",30);K@S,3
Student s1=new Student("zhangsan",18,t);VZri7
Student s2=(Student)s1.clone(); b#
s2.t.name="tony";JV_
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