Get Size of Java LinkedHashSet Example

1. /*
2.   Get Size of Java LinkedHashSet Example
3.   This Java Example shows how to get the size or nubmer of elements stored in
4.   Java LinkedHashSet object using size method.
5. */
6.  
7. import java.util.LinkedHashSet;
8.  
9. public class GetSizeOfJavaLinkedHashSetExample{
10.  
11.   public static void main(String[] args) {
12.  
13.     //create LinkedHashSet object
14.     LinkedHashSet lhashSet = new LinkedHashSet();
15.  
16.     /*
17.       To get the size of LinkedHashSet use
18.       int size() method of LinkedHashSet class. It returns the number of elements
19.       stored in LinkedHashSet object.    
20.     */
21.     System.out.println("Size of LinkedHashSet : " + lhashSet.size());
22.  
23.     //add elements to LinkedHashSet object
24.     lhashSet.add(new Integer("1"));
25.     lhashSet.add(new Integer("2"));
26.     lhashSet.add(new Integer("3"));
27.  
28.     System.out.println("Size of LinkedHashSet after addition : " + lhashSet.size());
29.  
30.     //remove one element from LinkedHashSet using remove method
31.     lhashSet.remove(new Integer("1"));
32.     System.out.println("Size of LinkedHashSet after removal : " + lhashSet.size());
33.   }
34. }
35.  
36. /*
37. Output would be
38. Size of LinkedHashSet : 0
39. Size of LinkedHashSet after addition : 3
40. Size of LinkedHashSet after removal : 2
41. */