Deep Copy/Shadow Copy an Object in Java

Method 1: Implement Cloneable

Method 2: Creating a Copy constructor or copy factory

Method 3: Using Serializable

This method copy all of the object and instance inside the class. But I personally not suggest using this method because of the performance concerns. This method converts the object into a ByteArray and then convert it back into a new object.

We can also use apache utils to implement it: