How to Convert a HashSet to an ArrayList in java programming languages ?

How to Convert a HashSet to an ArrayList in java programming languages ?

simple you can see this example of source code and learn how to convert HashSet to an ArraList.

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

public class HashSetToArrayList {

  public static void main(String[] args) {

  

    Set<String> hashset = new HashSet<String>();

    hashset.add("A");

    hashset.add("B");

    hashset.add("C");

    List<String> list = new ArrayList<String>(hashset);

    System.out.println(list.toString());

    

  }

}

you can see an other example how use Hash set  convert in an ArraList in java programming languages

This code example shows how to convert ArrayList to HashSet:

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

public class ArrayListToHashSet {

  public static void main(String[] args) {

    List<String> list = new ArrayList<String>();

    list.add(null);

    list.add("A"); 

    list.add("B");

    Set<String> hashset = new HashSet<String>(list);

    list = new ArrayList<String>(hashset);

    System.out.println(list.toString());

  }

}

The above code example also can be used to remove duplicate items from an ArrayList.

import java.util.ArrayList;

import java.util.HashSet;

import java.util.List;

import java.util.Set;

public class ArrayListToHashSet {

public static void main(String[] args) {

List list = new ArrayList();

list.add(null);

list.add("A");

list.add("A");

list.add("A");

list.add("A");

list.add("B");

list.add("B");

list.add("B");

list.add("C");

Set hashset = new HashSet(list);

list = new ArrayList(hashset);

System.out.println(list.toString());

}

}