Java IO Tutorial - Java ByteBuffer.allocate(int capacity)

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Syntax

ByteBuffer.allocate(int capacity) has the following syntax.

public static ByteBuffer allocate(int capacity)

Example

In the following code shows how to use ByteBuffer.allocate(int capacity) method.

import java.nio.ByteBuffer;
import java.util.Arrays;
/*  www  . java 2 s  .c  om*/
public class Main {
  public static void main(String[] argv) throws Exception {

    
    byte[] bytes = new byte[10];
    ByteBuffer buf = ByteBuffer.allocate(10);
    buf = ByteBuffer.wrap(bytes);
    
    System.out.println(Arrays.toString(buf.array()));
    System.out.println(buf.toString());
  }
}

The code above generates the following result.

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