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SortedSet contains() method in Java with Examples

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  • Last Updated : 21 Jan, 2021
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The contains() method is used to check whether a specific element is present in the SortedSet or not. So basically it is used to check if a SortedSet contains any particular element.


boolean contains(Object element)

Parameters: The parameter element is of the type of SortedSet. This is the element that needs to be tested if it is present in the set or not.

Return Value: The method returns true if the element is present in the set else return False.

Note: The contains() method in SortedSet is inherited from the Set interface in Java.

Below program illustrate the Java.util.Set.contains() method: 


// Java code to illustrate
// SortedSet.contains() method
import java.util.*;
public class SortedSetDemo {
    public static void main(String args[])
        // Creating an empty Set
        SortedSet<String> set
            = new TreeSet<String>();
        // Using add() method to
        // add elements into the Set
        // Displaying the Set
        System.out.println("Set: " + set);
        // Check for "Geeks" in the set
            "Does the Set contains 'Geeks'? "
            + set.contains("Geeks"));
        // Check for "4" in the set
            "Does the Set contains '4'? "
            + set.contains("4"));
        // Check if the Set contains "No"
            "Does the Set contains 'No'? "
            + set.contains("No"));


Set: [4, Geeks, To, Welcome]
Does the Set contains 'Geeks'? true
Does the Set contains '4'? true
Does the Set contains 'No'? false



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