Convert HashSet of String objects to ArrayList in java (example)

Leave a Comment / By Yogesh / June 16, 2016

Given a HashSet containing String objects in java.
- HashSet will be containing Sport’s name.
Convert HashSet <String> to ArrayList<String> in java.
- We will use the constructor of ArrayList to achieve the conversion.

Program – convert HashSet of Strings to ArrayList in java

package org.learn.collection.set.hset;
 
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Set;
 
public class DemoHashSetToArrayList {
 
    public static void main(String[] args) {
        Set<String> setSports = new HashSet<>();
        setSports.add("Tennis");
        setSports.add("Cricket");
        setSports.add(null);
        setSports.add("Basketball");
        setSports.add("Cricket");
        setSports.add(null);
        setSports.add("Golf");
        setSports.add("Boxer");     
         
        System.out.println("Set: "+ setSports);
        ArrayList<String>hashSetToArrayList = new ArrayList<>(setSports);
        System.out.println("ArrayList:"+ hashSetToArrayList);
    }
}

Output – convert HashSet of String objects to ArrayList in java

Set: [null, Tennis, Cricket, Golf, Basketball, Boxer]
ArrayList:[null, Tennis, Cricket, Golf, Basketball, Boxer]