Question

How to print TreeSet using iterator in Java

Answer 1

import java.util.TreeSet; 
import java.util.Iterator;  
 
public class MyClass {
    public static void main(String args[]) {
        TreeSet<String> ts = new TreeSet<String>(); 
   
        ts.add("java"); 
        ts.add("php"); 
        ts.add("c"); 
        ts.add("c++"); 
        ts.add("java"); 
        
        Iterator<String> itr = ts.iterator();
 
        while(itr.hasNext()){
            System.out.println(itr.next());
        }
    }
}
 
 
 
 
/*
run:
 
c
c++
java
php
 
*/

 

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