Learn to create clone of a HashMap in Java. We will see the java programs to create shallow copy and deep copy of a HashMap. 1. Creating a Shallow Copy of Map We can create a shallow copy of a given HashMap in two ways. The first uses the clone() method, and the second is …
ArrayList.clone() creates a shallow copy of the given ArrayList. Learn to create deep copy and shallow copy of an arraylist with examples.
Learn to create clone of array in Java. The clone() default creates a shallow copy of an array. Use SerializationUtils.clone() for deep copy.
We all know that the easiest way of deep cloning (with some performance overhead) or deep copy is serialization. Java serialization involves serializing the object into bytes and from bytes to the object again. We suggest using in-memory deep cloning whenever it is the only need and we don’t need …
A clone is an exact copy of the original. The java clone() method provides this functionality. Learn to create shallow copy, deep copy and using copy constructors in Java.
HowToDoInJava provides tutorials and how-to guides on Java and related technologies.
It also shares the best practices, algorithms & solutions and frequently asked interview questions.