JavaGian java tutorial and java interview question and answer

JavaGian , Free Online Tutorials, JavaGian provides tutorials and interview questions of all technology like java tutorial, android, java frameworks, javascript, ajax, core java, sql, python, php, c language etc. for beginners and professionals.

Showing posts with label Java-HashMap java-map Java-Map-Programs Picked Java hashmap collection. Show all posts
Showing posts with label Java-HashMap java-map Java-Map-Programs Picked Java hashmap collection. Show all posts

How to Clone a Map in Java collection

9:10 PM
 How to Clone a Map in Java collection Following are the 5 different ways to Clone a Map in Java. Example: {1=this, 2=For, 3=this} Method 1: Naive method 1. Create an object for the class map. 2. Put the elements into the map using the put() method. 3. Again create another object for the class map. 4. Now finally iterate the map and call put method to clone the initial map. Below is the implementation of the above approach: // Program to clone a Map in Java  // Naive Method     import java.util.*;     class JavacloneExample {      public static void main(String[] args)      {          // Creating an object for class Map          Map<Integer, String> hash_Map              = new HashMap<Integer, String>();             // putting elements into the map          hash_M...

.