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Wednesday, 27 May 2015

How to Convert a HashSet to an ArrayList

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

public class HashSetToList {


    public static void main(String[] args) {
       
        Set<String> hs = new HashSet<String>();
        hs.add("java");
        hs.add("php");
        hs.add("html");
        hs.add("javascript");
        hs.add("mysql");
       
        //print hashset
        System.out.println("hashset = "+hs);
       
      List<String> list = new ArrayList<String>(hs);
       
      System.out.println("list from hashset = "+list);
     
    }
   
}

Output:

hashset = [javascript, php, html, java, mysql]


list from hashset = [javascript, php, html, java, mysql]

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