TreeSet Example in JAVA

Example of TreeSet in Collection Framework

import java.util.*;
class TestTreeSet
{
public static void main(String args[])
{
    TreeSet set = new TreeSet();
  set.add("JAVA");
  set.add("J2EE");
  System.out.print("Result of adding J2ME fro first lin : "+set.add("J2ME"));
  set.add("Spring');
  set.add("Android");
  System.out.println("Size of the set is "+set.size());
  System.out.print("Result of adding J2ME for second time : "+set.add("J2ME"));
  Iterator itr = set.iterator();
  while(itr.hasNext())
  {
    System.out.println(itr.next());
  }
}
}

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Example of HasSet in Collection Framework


import java.util.*;
class TestHashSet
{
public static void main(String args[])
{
    HashSet set = new HashSet();
  set.add("JAVA");
  set.add("J2EE");
  System.out.print("Result of adding J2ME fro first lin : "+set.add("J2ME"));
  set.add("Spring');
  set.add("Android");
  System.out.println("Size of the set is "+set.size());
  System.out.print("Result of adding J2ME for second time : "+set.add("J2ME"));
  Iterator itr = set.iterator();
  while(itr.hasNext())
  {
    System.out.println(itr.next());
  }
}