Getting Synchronized Set from Java TreeSet
Last Updated :
07 Jan, 2021
In java.util.Collections class, synchronizedSet() method is used to return a synchronized (thread-safe) set backed by the specified set. This method takes the TreeSet as a parameter. To guarantee serial access, it is critical that all access to the backing set is accomplished through the returned set. We have Java TreeSet, our task is to get a synchronized set from it. For this, use synchronizedSet method of the Collections class.
Example:
Input : HashSet = [3, 4, 5]
Output: synchronizedSet = [3, 4, 5]
Input : HashSet = ['A', 'B', 'C']
Output: synchronizedSet = ['A', 'B', 'C']
Syntax:
public static <T> Set<T> synchronizedSet(Set<T> s)
Parameters: TreeSet as a parameter to be “wrapped” in a synchronized set.
Return Value:
Synchronized view of the specified set.
Approach:
- Create a TreeSet.
- Add some elements in the TreeSet.
- Create a Set variable and assign it with the Collections.synchronizedSet() method.
- Print the new synchronized Set.
Below is the implementation of the above approach:
Java
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
class GFG {
public static void main(String[] args)
{
TreeSet<Integer> treeSet = new TreeSet<Integer>();
treeSet.add( 48 );
treeSet.add( 49 );
treeSet.add( 59 );
treeSet.add( 38 );
System.out.println( "TreeSet : " +treeSet);
Set set = Collections.synchronizedSet(treeSet);
System.out.println( "SynchronizedSet : " +set);
}
}
|
Output
TreeSet : [38, 48, 49, 59]
SynchronizedSet : [38, 48, 49, 59]
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