Iterate through elements of TreeSet in Java

Java 8Object Oriented ProgrammingProgramming

First, create a TreeSet and add elements −

TreeSet<String> set = new TreeSet<String>();
set.add("34");
set.add("12");
set.add("67");
set.add("54");
set.add("76");
set.add("49");

Now, let us iterate through the elements −

Iterator<String> i = set.iterator();
while(i.hasNext()){
   System.out.println(i.next());
}

The following is an example that iterate through elements of TreeSet −

Example

 Live Demo

import java.util.*;
public class Demo {
   public static void main(String args[]){
      TreeSet<String> set = new TreeSet<String>();
      set.add("34");
      set.add("12");
      set.add("67");
      set.add("54");
      set.add("76");
      set.add("49");
      System.out.println("TreeSet elements...");
      Iterator<String> i = set.iterator();
      while(i.hasNext()){
         System.out.println(i.next());
      }
   }
}

Output

TreeSet elements...
12
34
49
54
67
76
raja
Published on 11-Jan-2019 11:11:08
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