Example of toArray() method of hashset in java.
Example of toArray() method of hashset in java.The toArray() is a method of HashSet in java. It is used to create array of object. It is also used to copy all element of hashset into array of object.
Code:
HashSetToArray .java
package net.roseindia; import java.util.HashSet; public class HashSetToArray { public static void main(String[] arg) { HashSet obHashSet = new HashSet(); obHashSet.add(new Integer(1)); obHashSet.add(new Integer(2)); obHashSet.add(new Integer(3)); obHashSet.add(new Integer(4)); System.out.println("All Elements in HashSet : " + obHashSet); /* Copy to array of object... */ Object[] num = obHashSet.toArray(); /* All elements of array... */ for (int i = 0; i < num.length; i++) { System.out.println("Array element : " + num[i]); } } } |
All Elements in HashSet : [1, 2, 3, 4] Array element : 1 Array element : 2 Array element : 3 Array element : 4 |