Get size of Hashtable example in Java

Example

In this example we are gonna see how to get the size of Hashtable. We will be using size() method of Hashtable class to perform this operation.

import java.util.Hashtable;

public class SizeExample{
 
 public static void main(String[] args) {
 
    // Creating a Hashtable instance
    Hashtable<String, String> hashtable = new Hashtable<String, String>();
 
    // Adding key-value pairs to Hashtable
    hashtable.put("A", "Apple");
    hashtable.put("B", "Orange");
    hashtable.put("C", "Mango");
    hashtable.put("D", "Banana");
    hashtable.put("E", "Grapes");
 
    /* int size(): method returns number of key value pairs present
     * in this hashtable. 
     */
    System.out.println("Size of Hashtable: " + hashtable.size()); 
 }
}

Output:

Size of Hashtable: 5