SortedSet toArray() method in Java with Examples
Last Updated :
30 Sep, 2019
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The toArray() method of Java SortedSet is used to form an array of the same elements as that of the SortedSet. Basically, it copies all the element from a SortedSet to a new array.
Syntax:
Java
Java
Object[] toArray()Parameters: The method does not take any parameters. Return Value: The method returns an array containing the elements similar to the SortedSet. Note: The toArray() method in SortedSet is inherited from the Set interface in Java. Below programs illustrate the SortedSet.toArray() method: Program 1:
// Java code to illustrate toArray()
import java.util.*;
public class SortedSetDemo {
public static void main(String args[])
{
// Creating an empty SortedSet
SortedSet<String> abs_col
= new TreeSet<String>();
// Use add() method to add
// elements into the SortedSet
abs_col.add("Welcome");
abs_col.add("To");
abs_col.add("Geeks");
abs_col.add("For");
abs_col.add("Geeks");
// Displaying the Set
System.out.println("The SortedSet: "
+ abs_col);
// Creating the array and using toArray()
Object[] arr = abs_col.toArray();
System.out.println("The array is:");
for (int j = 0; j < arr.length; j++)
System.out.println(arr[j]);
}
}
Output:
Program 2:
The SortedSet: [For, Geeks, To, Welcome] The array is: For Geeks To Welcome
// Java code to illustrate toArray()
import java.util.*;
public class SetDemo {
public static void main(String args[])
{
// Creating an empty SortedSet
SortedSet<Integer> abs_col
= new TreeSet<Integer>();
// Use add() method to add
// elements into the SortedSet
abs_col.add(10);
abs_col.add(15);
abs_col.add(30);
abs_col.add(20);
abs_col.add(5);
abs_col.add(25);
// Displaying the SortedSet
System.out.println("The SortedSet: "
+ abs_col);
// Creating the array and using toArray()
Object[] arr = abs_col.toArray();
System.out.println("The array is:");
for (int j = 0; j < arr.length; j++)
System.out.println(arr[j]);
}
}
Output:
Reference: https://docs.oracle.com/javase/7/docs/api/java/util/Set.html#toArray()
The SortedSet: [5, 10, 15, 20, 25, 30] The array is: 5 10 15 20 25 30
