- 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 Collections synchronizedSet() Method
Description
The Java Collections synchronizedSet() method is used to return a synchronized (thread-safe) set backed by the specified set.
Declaration
Following is the declaration for java.util.Collections.synchronizedSet() method.
public static <T> Set<T> synchronizedSet(Set<T> s)
Parameters
s − This is the set to be "wrapped" in a synchronized set.
Return Value
The method call returns a synchronized view of the specified set.
Exception
NA
Getting Synchronized Set From a Unsynchronized Set of Integer Example
The following example shows the usage of Java Collection synchronizedSet(Set) method. We've created a Set object of Integer. Few entries are added and then using synchronizedSet(Set) method, we've retrieved the synchronized version of set and printed the set.
package com.tutorialspoint; import java.util.Collections; import java.util.HashSet; import java.util.Set; public class CollectionsDemo { public static void main(String[] args) { // create set Set<Integer> set = new HashSet<Integer>(); // populate the set set.add(1); set.add(2); set.add(3); // create a synchronized set Set<Integer> synset = Collections.synchronizedSet(set); System.out.println("Synchronized set is :"+synset); } }
Output
Let us compile and run the above program, this will produce the following result.
Synchronized set is :[1, 2, 3]
Getting Synchronized Set From a Unsynchronized Set of String Example
The following example shows the usage of Java Collection synchronizedSet(Set) method. We've created a Set object of String and String. Few entries are added and then using synchronizedSet(Set) method, we've retrieved the synchronized version of map and printed the map.
package com.tutorialspoint; import java.util.Collections; import java.util.HashSet; import java.util.Set; public class CollectionsDemo { public static void main(String[] args) { // create set Set<String> set = new HashSet<String>(); // populate the set set.add("TP"); set.add("IS"); set.add("BEST"); // create a synchronized set Set<String> synset = Collections.synchronizedSet(set); System.out.println("Synchronized set is :"+synset); } }
Output
Let us compile and run the above program, this will produce the following result.
Synchronized set is :[IS, BEST, TP]
Getting Synchronized Set From a Unsynchronized Set of Object Example
The following example shows the usage of Java Collection synchronizedSet(Set) method. We've created a Set object of String and Student object. Few entries are added and then using synchronizedSet(Set) method, we've retrieved the synchronized version of map and printed the map.
package com.tutorialspoint; import java.util.Collections; import java.util.HashSet; import java.util.Set; public class CollectionsDemo { public static void main(String[] args) { // create set Set<Student> set = new HashSet<Student>(); // populate the set set.add(new Student(1, "Julie")); set.add(new Student(2, "Robert")); set.add(new Student(3, "Adam")); // create a synchronized set Set<Student> synset = Collections.synchronizedSet(set); System.out.println("Synchronized set is :"+synset); } } 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.
Synchronized set is :[[ 1, Julie ], [ 2, Robert ], [ 3, Adam ]]
To Continue Learning Please Login
Login with Google