FloatBuffer allocate() method in Java

A new FloatBuffer can be allocated using the method allocate() in the class java.nio.FloatBuffer. This method requires a single parameter i.e. the capacity of the buffer. It returns the new FloatBuffer 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 {
         FloatBuffer buffer = FloatBuffer.allocate(n);
         System.out.println("The FloatBuffer 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 FloatBuffer is: [4.5, 1.2, 3.9, 7.5, 5.8]
Samual Sam
Samual Sam

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