Deep clone with any complexity in Java

In Java, if a Class A needs to implement deep clone, simply perform the following two points at the same time:

1. Class A must implement the serializable interface. For example:

class A implements serializable

{

...

}

 

2. Add the following method to Class:

Public A clone () // deep clone for object of any complexity

{

Try

{

Bytearrayoutputstream baos =NewBytearrayoutputstream ();

objectoutputstream OOS = New objectoutputstream (baos );

Oos. writeobject (This);

Oos. Close ();

bytearrayinputstream BAIS = New bytearrayinputstream (baos. tobytearray ();

objectinputstream OIS = New objectinputstream (BAIS );

Object Ob = Ois. readobject ();

Ois. Close ();

Return(A) ob;

}

Catch(Exception E)

{

E. printstacktrace ();

}

return null ;

}

 

This is similar to the following:Code:

A A = new ();

A B = A. Clone ();

 

This is to achieve deep clone using serialization.