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Copy all elements of Java LinkedHashSet to an Object Array Example

  1. /*
  2.   Copy all elements of Java LinkedHashSet to an Object Array Example
  3.   This Java Example shows how to copy all elements of Java LinkedHashSet object to an
  4.   array of Objects using toArray method.
  5. */
  6.  
  7. import java.util.LinkedHashSet;
  8.  
  9. public class CopyElementsOfHashSetToArrayExample {
  10.  
  11.   public static void main(String[] args) {
  12.  
  13.     //create object of LinkedHashSet
  14.     LinkedHashSet lhashSet = new LinkedHashSet();
  15.    
  16.     //add elements to LinkedHashSet object
  17.     lhashSet.add(new Integer("1"));
  18.     lhashSet.add(new Integer("2"));
  19.     lhashSet.add(new Integer("3"));
  20.    
  21.     /*
  22.       To copy all elements of java LinkedHashSet object into array use
  23.       Object[] toArray() method.
  24.     */
  25.    
  26.     Object[] objArray = lhashSet.toArray();
  27.    
  28.     //display contents of Object array
  29.     System.out.println("LinkedHashSet elements are copied into an Array.
  30.                                                    Now Array Contains..");
  31.     for(int index=0; index < objArray.length ; index++)
  32.       System.out.println(objArray[index]);
  33.   }
  34. }
  35.  
  36. /*
  37. Output would be
  38. LinkedHashSet elements are copied into an Array. Now Array Contains..
  39. 1
  40. 2
  41. 3
  42. */