
- 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
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Java.util.Dictionary.isEmpty() Method
Description
The java.util.Dictionary.isEmpty() method check if this dictionary has no keys to value.
Declaration
Following is the declaration for java.util.Dictionary.isEmpty() method
public abstract boolean isEmpty()
Parameters
NA
Return Value
This method returns true if this dictionary has no keys to values; false otherwise.
Exception
NA
Example
The following example shows the usage of java.util.Dictionary.isEmpty() method.
package com.tutorialspoint; import java.util.*; public class DictionaryDemo { public static void main(String[] args) { // create a new hashtable Dictionary d = new Hashtable(); // add elements in the hashtable d.put("1", "Chocolate"); d.put("2", "Cocoa"); d.put("5", "Coffee"); // return true if this dictionary maps no keys to value. boolean b = d.isEmpty(); System.out.println("Dictionary is empty:" + b); } }
Let us compile and run the above program, this will produce the following result −
Dictionary is empty:false
java_util_dictionary.htm
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