Java.util.Dictionary.size() Method

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Description

The java.util.Dictionary.size() method returns the number of entries (distinct keys) in this dictionary.

Declaration

Following is the declaration for java.util.Dictionary.size() method

public abstract int size()

Parameters

NA

Return Value

This method returns the number of keys in this dictionary.

Exception

NA

Example

The following example shows the usage of java.util.Dictionary.size() method.

package com.tutorialspoint;

import java.util.*;

public class DictionaryDemo {
   public static void main(String[] args) {

      // Create a new hasthtable
      Dictionary d = new Hashtable();

      // Put some elements
      d.put("1", "Chocolate");
      d.put("2", "Cocoa");
      d.put("5", "Coffee");

      // print the size of the dictionary
      System.out.println("Size of dictionary:" + d.size());;
   }
}

Let us compile and run the above program, this will produce the following result −

Size of dictionary:3