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Java Collections unmodifiableSortedSet() Method with Example

Collections Class unmodifiableSortedSet() method: Here, we are going to learn about the unmodifiableSortedSet() method of Collections Class with its syntax and example.
Submitted by Preeti Jain, on February 08, 2020

Collections Class unmodifiableSortedSet() method

• unmodifiableSortedSet() method is available in java.util package.
• unmodifiableSortedSet() method is used to get a non-modifiable view of the given SortedSet (ss).
• unmodifiableSortedSet() method is a static method, it is accessible with the class name and if we try to access the method with the class object then also we will not get any error.
• unmodifiableSortedSet() method does not throw an exception at the time of returning unmodifiable view of the given sorted set.

Syntax:

    public static SortedSet unmodifiableSortedSet(SortedSet ss);

Parameter(s):

• SortedSet ss – represents the sorted set object for which a non-modifiable view is to be retrieved.

Return value:

The return type of this method is SortedSet, it returns an unmodifiable view of the given sorted set.

Example:

// Java program to demonstrate the example 
// of SortedSet unmodifiableSortedSet() 
// method of Collections


import java.util.*;

public class UnmodifiableSortedSetOfCollections {
    public static void main(String args[]) {
        // Instantiates a sorted set object
        SortedSet < Integer > ss = new TreeSet < Integer > ();

        // By using add() method is to add
        //objects in a sorted set 
        ss.add(20);
        ss.add(10);
        ss.add(40);
        ss.add(30);
        ss.add(50);

        // Display Sorted Set
        System.out.println("SortedSet: " + ss);

        // By using unmodifiableSortedSet() method is to
        // represent the tree set in unmodifiable view
        ss = Collections.synchronizedSortedSet(ss);

        // We will get an exception when we 
        // try to add an object in an unmodifiable
        // sorted set

        /* ss.add(60)*/
    }
}

Output

SortedSet: [10, 20, 30, 40, 50]