- Java.util Package Classes
- Java.util - Home
- Java.util - ArrayDeque
- Java.util - ArrayList
- Java.util - Arrays
- Java.util - BitSet
- Java.util - Calendar
- Java.util - Collections
- Java.util - Currency
- Java.util - Date
- Java.util - Dictionary
- Java.util - EnumMap
- Java.util - EnumSet
- Java.util - Formatter
- Java.util - GregorianCalendar
- Java.util - HashMap
- Java.util - HashSet
- Java.util - Hashtable
- Java.util - IdentityHashMap
- Java.util - LinkedHashMap
- Java.util - LinkedHashSet
- Java.util - LinkedList
- Java.util - ListResourceBundle
- Java.util - Locale
- Java.util - Observable
- Java.util - PriorityQueue
- Java.util - Properties
- Java.util - PropertyPermission
- Java.util - PropertyResourceBundle
- Java.util - Random
- Java.util - ResourceBundle
- Java.util - ResourceBundle.Control
- Java.util - Scanner
- Java.util - ServiceLoader
- Java.util - SimpleTimeZone
- Java.util - Stack
- Java.util - StringTokenizer
- Java.util - Timer
- Java.util - TimerTask
- Java.util - TimeZone
- Java.util - TreeMap
- Java.util - TreeSet
- Java.util - UUID
- Java.util - Vector
- Java.util - WeakHashMap
- Java.util Package Extras
- Java.util - Interfaces
- Java.util - Exceptions
- Java.util - Enumerations
- Java.util Useful Resources
- Java.util - Useful Resources
- Java.util - Discussion
Java.util.Dictionary.size() Method
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
java_util_dictionary.htm
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