The toArray() method of Java LinkedHashSet is used to form an array of the same elements as that of the LinkedHashSet. Basically, it copies all the element from a LinkedHashSet to a new array.
Syntax:
Object[] arr = LinkedHashSet.toArray()
Parameters: The method does not take any parameters.
Return Value: The method returns an array containing the elements similar to the LinkedHashSet.
Below programs illustrate the LinkedHashSet.toArray() method:
Program 1:
// Java code to illustrate toArray() import java.util.*; public class LinkedHashSetDemo { public static void main(String args[]) { // Creating an empty LinkedHashSet LinkedHashSet<String> set = new LinkedHashSet<String>(); // Use add() method to add // elements into the LinkedHashSet set.add( "Welcome" ); set.add( "To" ); set.add( "Geeks" ); set.add( "For" ); set.add( "Geeks" ); // Displaying the LinkedHashSet System.out.println( "The LinkedHashSet: " + set); // Creating the array and using toArray() Object[] arr = set.toArray(); System.out.println( "The array is:" ); for ( int j = 0 ; j < arr.length; j++) System.out.println(arr[j]); } } |
The LinkedHashSet: [Welcome, To, Geeks, For] The array is: Welcome To Geeks For
Program 2:
// Java code to illustrate toArray() import java.util.*; public class LinkedHashSetDemo { public static void main(String args[]) { // Creating an empty LinkedHashSet LinkedHashSet<Integer> set = new LinkedHashSet<Integer>(); // Use add() method to add // elements into the LinkedHashSet set.add( 10 ); set.add( 15 ); set.add( 30 ); set.add( 20 ); set.add( 5 ); set.add( 25 ); // Displaying the LinkedHashSet System.out.println( "The LinkedHashSet: " + set); // Creating the array and using toArray() Object[] arr = set.toArray(); System.out.println( "The array is:" ); for ( int j = 0 ; j < arr.length; j++) System.out.println(arr[j]); } } |
The LinkedHashSet: [10, 15, 30, 20, 5, 25] The array is: 10 15 30 20 5 25
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