Java TreeSet Example to sorting data with java TreeSet

Java TreeSet is a Class int package java.util
We can use TreeSet to auto sorting data in the Tree for example in below

 Example to using java.util.TreeSet

   //Create instance for TreeSet of String  
     TreeSet treeSet=new TreeSet();  
     //Store data to TreeSet with mix order  
     treeSet.add("aa1");  
     treeSet.add("aa2");  
     treeSet.add("aa3");  
     treeSet.add("bb1");  
     treeSet.add("bb2");  
     //Test containing data .. the same function for Other Collection  
     System.out.println("TreeSet contails "+treeSet.contains("aa1"));  
     System.out.println("TreeSet contails "+treeSet.contains("bb1"));  
     //Loop data from TreeSet  
     Iterator it=treeSet.iterator();  
     while(it.hasNext()){  
       System.out.println("TreeSet Next Data "+it.next());  
     }  

Result when run program

 TreeSet contails true
TreeSet contails true
TreeSet Next Data aa1
TreeSet Next Data aa2
TreeSet Next Data aa3
TreeSet Next Data bb1
TreeSet Next Data bb2

Amazed !! data will sorting automatic