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SortedSet size() method in Java with Examples

  • 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:

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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 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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