/*
Get Size of Java Hashtable Example
This Java Example shows how to get the size or nubmer of key value pairs
stored in Hashtable using size method.
*/
import java.util.Hashtable;
public class GetSizeOfHashtableExample{
public static void main(String[] args) {
//create Hashtable object
Hashtable ht = new Hashtable();
/*
To get the size of Hashtable use
int size() method of Hashtable class. It returns the number of key values
pairs stored in Hashtable object.
*/
System.out.println("Size of Hashtable : " + ht.size());
//add key value pairs to Hashtable using put method
ht.put("1","One");
ht.put("2","Two");
ht.put("3","Three");
System.out.println("Size of Hashtable after addition : " + ht.size());
//remove one element from Hashtable using remove method
Object obj = ht.remove("2");
System.out.println("Size of Hashtable after removal : " + ht.size());
}
}
/*
Output would be
Size of Hashtable : 0
Size of Hashtable after addition : 3
Size of Hashtable after removal : 2
*/
