DoubleBuffer allocate() method in Java

A new DoubleBuffer can be allocated using the method allocate() in the class java.nio.DoubleBuffer. This method requires a single parameter i.e. the capacity of the buffer. It returns the new DoubleBuffer that is allocated. If the capacity provided is negative, then the IllegalArgumentException is thrown.

A program that demonstrates this is given as follows −


 Live Demo

import java.nio.*;
import java.util.*;
public class Demo {
   public static void main(String[] args) {
      int n = 5;
      try {
         DoubleBuffer buffer = DoubleBuffer.allocate(5);
         System.out.println("The DoubleBuffer is: " + Arrays.toString(buffer.array()));
      } catch (IllegalArgumentException e) {
         System.out.println("Error!!! IllegalArgumentException");
      } catch (ReadOnlyBufferException e) {
         System.out.println("Error!!! ReadOnlyBufferException");

The output of the above program is as follows −


The DoubleBuffer is: [4.5, 1.2, 3.9, 7.5, 5.8]
karthikeya Boyini
karthikeya Boyini

I love programming (: That's all I know