Java examples for Collection Framework:Hashtable
Get Size of Hashtable
import java.util.Hashtable; public class Main { public static void main(String[] args) { Hashtable ht = new Hashtable(); System.out.println("Size of Hashtable : " + ht.size()); /*www . j a v a 2 s .c om*/ //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()); Object obj = ht.remove("2"); System.out.println("Size of Hashtable after removal : " + ht.size()); } }