SortedSet size() method in Java with Examples (original) (raw)

Last Updated : 30 Sep, 2019

The size() method of SortedSet interface is used to get the size of the SortedSet or the number of elements present in the SortedSet.Syntax:

int size()

Parameters: This method does not takes any parameter.Return Value: The method returns the size or the number of elements present in the SortedSet.Note: The size() method in SortedSet is inherited from the Set interface in Java. Below program illustrate the java.util.Set.size() method:

Java `

// Java code to illustrate Set.size() method

import java.util.*;

public class SetDemo { public static void main(String args[]) {

    // Creating an empty Set
    SortedSet<String> set
        = new TreeSet<String>();

    // Use add() method to
    // add elements into the Set
    set.add("Welcome");
    set.add("To");
    set.add("Geeks");
    set.add("4");
    set.add("Geeks");

    // Displaying the Set
    System.out.println("Set: " + set);

    // Displaying the size of the Set
    System.out.println(
        "The size of the SortedSet is: "
        + set.size());
}

}

`

Output:

Set: [4, Geeks, To, Welcome] The size of the SortedSet is: 4

Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Set.html#size()

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