- 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 Dictionary get() Method
Description
The Java Dictionary get(Object key) method returns the value that is on the key given in the dictionary.
Declaration
Following is the declaration for java.util.Dictionary.get() method
public abstract V get(Object key)
Parameters
key − a key in this dictionary. Can be null if key is not mapped to any value.
Return Value
This method returns the value to which the key is mapped in this dictionary.
Exception
NA
Getting a Value from a Dictionary of Integer,Integer Pair Example
The following example shows the usage of Java Dictionary get(int) method. We're creating a dictionary instance using Hashtable object of Integer, Integer pairs. Then we've added few elements to it. One of the element is retrived using get(int) method by passing a key and then printed.
package com.tutorialspoint; import java.util.Dictionary; import java.util.Hashtable; public class DictionaryDemo { public static void main(String[] args) { // create a new hashtable Dictionary<Integer, Integer> dictionary = new Hashtable<>(); // add 2 elements dictionary.put(1, 1); dictionary.put(2, 2); System.out.println(dictionary.get(1)); } }
Output
Let us compile and run the above program, this will produce the following result −
1
Getting a Value from a Dictionary of Integer,String Pair Example
The following example shows the usage of Java Dictionary get(int) method. We're creating a dictionary instance using Hashtable object of Integer, String pairs. Then we've added few elements to it. One of the element is retrived using get(int) method by passing a key and then printed.
package com.tutorialspoint; import java.util.Dictionary; import java.util.Hashtable; public class DictionaryDemo { public static void main(String[] args) { // create a new hashtable Dictionary<Integer, String> dictionary = new Hashtable<>(); // add 2 elements dictionary.put(1, "One"); dictionary.put(2, "Two"); System.out.println(dictionary.get(1)); } }
Output
Let us compile and run the above program, this will produce the following result −
One
Getting a Value from a Dictionary of Integer, Object Pair Example
The following example shows the usage of Java Dictionary get(int) method. We're creating a dictionary instance using Hashtable object of Integer, Student pairs. Then we've added few elements to it. One of the element is retrived using get(int) method by passing a key and then printed.
package com.tutorialspoint; import java.util.Dictionary; import java.util.Hashtable; public class DictionaryDemo { public static void main(String[] args) { // create a new hashtable Dictionary<Integer, Student> dictionary = new Hashtable<>(); // add 2 elements dictionary.put(1, new Student(1, "Julie")); dictionary.put(2, new Student(2, "Robert")); System.out.println(dictionary.get(1)); } } class Student { int rollNo; String name; Student(int rollNo, String name){ this.rollNo = rollNo; this.name = name; } @Override public String toString() { return "[ " + this.rollNo + ", " + this.name + " ]"; } }
Output
Let us compile and run the above program, this will produce the following result −
[ 1, Julie ]
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