What is the difference between shallow cloning and deep cloning

Heena July 15, pm. M Chisty September 3, am. Hi pramodbablad, Thanks for posting on such topic. Raj October 3, am. Kacper February 22, pm. Bhavdip Bhalodia February 11, am. String is immutable and it always clone new value. Sreeharsha December 7, pm. The post on the shallow and deep copy is very good and easy to follow.

Keep up the good work. I have a doubt regarding the concept: 1. Do we need to override the clone method if we implement the cloneable interface? In the example shared in the blog for shallow copy , there was no specific functionality introduced What is the benefit of such override? What is the benefit of such override?

Level of Explanation ……………. Manoj March 24, am. Nice Explanation of cloning keep it up the good work. Thanks for the clear explanation ,. Donatel May 8, pm. For example, in our Person object, we would create a second Person , but both objects would share the same Name and Address objects.

In Example 5, we have our class Person, which contains a Name and Address object. The copy constructor takes the originalPerson object and copies its reference variables. The problem with the shallow copy is that the two objects are not independent. If you modify the Name object of one Person , the change will be reflected in the other Person object.

Say we have a Person object with a reference variable mother; then, we make a copy of mother , creating a second Person object, son. If later on in the code, the son tries to moveOut by modifying his Address object, the mother moves with him! This occurs because our mother and son objects share the same Address object, as you can see illustrated in Example 7. When we change the Address in one object, it changes in both!

Unlike the shallow copy, a deep copy is a fully independent copy of an object. If we copied our Person object, we would copy the entire object structure. Using this deep copy, we can retry the mother-son example from Example 6. Now the son is able to successfully move out!

The Street object is composed of two instance variables — String name and int number. What is Shallow copy? What is Deep copy? Next : Use of System. Environment Class. Net Reflection Globalization and Localization What is. Net serialization Difference between web service and. Environment Class What is the difference between private and shared assembly? Does the. The resultant object is thus called clone or copy of the original object.

In Java, only the objects of a class that implements Cloneable interface can be cloned or copied. Object can be used to achieve the desired type of copy of the object shallow copy or deep copy. Shallow Copy 1. If we simply use clone method defined in java.