Every class extends object but why it is not possible for every object to invo

Every class extends object but why it is not possible for
every object to invoke clone() method. ideally protected
methods should be accessible from sub classes. isn't it?

Question Posted / muhammeda

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Every class extends object but why it is not possible for every object to invoke clone() method. i..

Answer / aslam

Since the method is protected we can access clone method
only within the package or from subclasses outside the
package.

for ex:
class A{
public static void main(String arg[]){
new A().clone();
/* This is legal since class A is a subclass of Object and
we r accessing within the subclass*/

}
}

class B{
public static void main(String arg[]){
new A().clone();
/* Illegal since we r accessing it from outside object */
}
}

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5 Yes

1 No

Every class extends object but why it is not possible for every object to invoke clone() method. i..

Answer / surendrababu koppula

clone() method must be called on only cloneable objects so sub class must implement Cloneable marker interface

Is This Answer Correct ?

3 Yes

0 No

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