How to add value to all types of Collections

Following example shows how to add values in all types collections in Java.

Sample Program
AddValueToCollection.java

package com.javatutorialcorner.collection;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;

public class AddValueToCollection {

 public static void main(String[] args) {
  System.out.println("********** LinkedList **********");
  List lnkLst = new LinkedList();
  lnkLst.add("Java");
  lnkLst.add("Spring");
  lnkLst.add("Spring MVC");
  lnkLst.add("Spring Security");
  printCollection(lnkLst);

  System.out.println("********** Array List **********");
  List aryLst = new ArrayList();
  aryLst.add("Spring Social");
  aryLst.add("Spring Integration");
  aryLst.add("Spring Batch");
  aryLst.add("Hibernate");
  printCollection(aryLst);

  System.out.println("********** HashSet **********");
  Set hashSet = new HashSet();
  hashSet.add("RESTFul Webservice");
  hashSet.add("SOAP Webservice");
  hashSet.add("JSON");
  hashSet.add("XML Parsing");
  printCollection(hashSet);

  System.out.println("********** TreeSet **********");
  SortedSet treeSet = new TreeSet();
  treeSet.add("Log4j");
  treeSet.add("Java 7");
  treeSet.add("Java Mail API");
  treeSet.add("Jav Best practices");
  printCollection(treeSet);

  System.out.println("********** LinkedHashSet **********");
  LinkedHashSet lnkHashset = new LinkedHashSet();
  lnkHashset.add("AngularJS");
  lnkHashset.add("JUnit");
  lnkHashset.add("EasyMock");
  lnkHashset.add("Big Data");
  printCollection(lnkHashset);

  System.out.println("********** HashMap **********");
  Map map1 = new HashMap();
  map1.put("xml1", "DOM Parser");
  map1.put("xml2", "SAX Parser");
  map1.put("xml3", "JDOM");
  map1.put("xml4", "DOM4J");
  map1.put("xml5", "XPATH");
  map1.put("xml6", "JAXB");
  printCollection(map1.keySet());
  printCollection(map1.values());

  System.out.println("********** TreeMap **********");
  SortedMap map2 = new TreeMap();
  map2.put("JSON1", "JSONSimple");
  map2.put("JSON2", "Jackson");
  map2.put("JSON3", "GSON");
  printCollection(map2.keySet());
  printCollection(map2.values());

  System.out.println("********** LinkedHashMap **********");
  LinkedHashMap map3 = new LinkedHashMap();
  map3.put("db1", "MySQL");
  map3.put("db2", "PostgreSQL");
  map3.put("db3", "Oracle");
  map3.put("db4", "MS SQL Server");
  printCollection(map3.keySet());
  printCollection(map3.values());
 }

 private static void printCollection(Collection collection) {
  Iterator itr = collection.iterator();
  while (itr.hasNext()) {
   String str = (String) itr.next();
   System.out.print(str + " ");
  }
  System.out.println();
 }

}

Result
The above code will produce the following output.

********** LinkedList **********
Java Spring Spring MVC Spring Security
********** Array List **********
Spring Social Spring Integration Spring Batch Hibernate
********** HashSet **********
JSON SOAP Webservice RESTFul Webservice XML Parsing
********** TreeSet **********
Jav Best practices Java 7 Java Mail API Log4j
********** LinkedHashSet **********
AngularJS JUnit EasyMock Big Data
********** HashMap **********
xml4 xml3 xml6 xml5 xml2 xml1
DOM4J JDOM JAXB XPATH SAX Parser DOM Parser
********** TreeMap **********
JSON1 JSON2 JSON3
JSONSimple Jackson GSON
********** LinkedHashMap **********
db1 db2 db3 db4
MySQL PostgreSQL Oracle MS SQL Server