class « Clone « Java Class Q&A

1. Should I use clone when adding a new element? When should clone be used?    stackoverflow.com

I want to implement in Java a class for handling graph data structures. I have a Node class and an Edge class. The Graph class maintains two list: a list of ...

2. How does Object class implement clone() method    stackoverflow.com

In a book on Core Java, I found this excerpt :

Think about the way in which the Object class can implement clone. It knows nothing about the ...

3. When and how can I use the Clone() method in real world situation?    stackoverflow.com

I think the title is straight forward. I understood how clone() works and override in my class. But, I couldn't imagine a simple real world example where the Clone() method is ...

4. Doubt in clone Method of Object Class    coderanch.com

5. Where is the implementation of clone() method of Object Class??    coderanch.com

The keyword "native" means that the implementation is NOT in Java. I would guess it's written in C or C++. As for the answer to your question, I'm not sure where you find the implementation. Perhaps look for an Object.c or Object.cpp file in the source distribution? I've never looked at the source myself, so that's only a guess. I've never ...

6. When and why should I use clone() method of Object class    coderanch.com

7. Cloning Objects of String and Integer classes    coderanch.com

8. Singleton class + object.clone() ?    coderanch.com

@ kri shan It's shallow copy not deep copy. It's better if you tell purpose behind using clone method in singletone class. Java Documentation wrote:The method clone for class Object performs a specific cloning operation. First, if the class of this object does not implement the interface Cloneable, then a CloneNotSupportedException is thrown. Note that all arrays are considered to implement ...

9. class.newInstance() Vs object.clone()    coderanch.com

10. why clone() in Object class not accessable from my class?    coderanch.com

Protected method - means that this method is visible to this class itself, to members of the same package and to subclasses of this class - but it is not visible to other classes. Refer to this link to refresh basics on controlling access to members of a class: http://download.oracle.com/javase/tutorial/java/javaOO/accesscontrol.html If you want to make clone() method accessible to the whole ...

11. Can I clone my class like this?    coderanch.com

Hi everybody, can I clone my class's object like this. What is the difference between the code in the commented part and which I have written. What I understood is the commented part calls the super.clone() method which returns an Object of the current class. Can I directly create a new object explicitly and return it instead using that code. Is ...

12. the Object class's clone method    forums.oracle.com

hi Im writing a clone method for my Student class. what I see from goggling is that I need to call " Student cloned = (Student) super.clone(); " this is the first statement in my clone method and I really dont know what it does. I looked into the Object class and found that it didnt have any impletation it was ...

13. clone class problem ??    forums.oracle.com

14. Can we clone singleton class?    forums.oracle.com

first of all classes are not cloned....objects are cloned..... Examine the following code snippet, which clones a singleton object. public class Clone { public static void main(String args[]) throws Exception { // Get a singleton SingletonObject obj = SingletonObject.getSingletonObject(); // Buahahaha. Let's clone the object SingletonObject clone = (SingletonObject) obj.clone(); } }

15. When should we use clone() method of Object class?    forums.oracle.com

You should use the clone method when you want a replication of your own object at runtime. New operator obviously creates a new instance of the class, but it is initialized with default values. But when clone an object, you get the state of the cloned object in the new one. If you do a new() then you need to set ...

16. Doubt in clone Method of Object Class    forums.oracle.com