The toArray() method of Shorts Class in the Guava library is used to convert the short values, passed as the parameter to this method, into a Short Array. These short values are passed as a Collection to this method. This method returns a Short array.
Syntax:
public static short[] toArray(Collection<? extends Number> collection)
Parameters: This method accepts a mandatory parameter collection which is the collection of short values to be converted in to a Short array.
Return Value: This method returns a short array containing the same values as a collection, in the same order.
Exceptions: This method throws NullPointerException if the passed collection or any of its elements is null.
Below programs illustrate the use of toArray() method:
Example 1:
// Java code to show implementation of// Guava's Shorts.toArray() method import com.google.common.primitives.Shorts;import java.util.Arrays;import java.util.List; class GFG { // Driver's code public static void main(String[] args) { // Creating a List of Shorts List<Short> myList = Arrays.asList((short)1, (short)2, (short)3, (short)4, (short)5); // Using Shorts.toArray() method to convert // a List or Set of Short to an array of Short short[] arr = Shorts.toArray(myList); // Displaying an array containing each // value of collection, // converted to a short value System.out.println(Arrays.toString(arr)); }} |
[1, 2, 3, 4, 5]
Example 2:
// Java code to show implementation of// Guava's Shorts.toArray() method import com.google.common.primitives.Shorts;import java.util.Arrays;import java.util.List; class GFG { // Driver's code public static void main(String[] args) { try { // Creating a List of Shorts List<Short> myList = Arrays.asList((short)2, (short)4, null); // Using Shorts.toArray() method // to convert a List or Set of Short // to an array of Short. // This should raise "NullPointerException" // as the collection contains "null" // as an element short[] arr = Shorts.toArray(myList); // Displaying an array containing each // value of collection, // converted to a short value System.out.println(Arrays .toString(arr)); } catch (Exception e) { System.out.println(e); } }} |
java.lang.NullPointerException
