Java IO Tutorial - Java ByteBuffer.asReadOnlyBuffer()

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Syntax

ByteBuffer.asReadOnlyBuffer() has the following syntax.

public abstract ByteBuffer asReadOnlyBuffer()

Example

In the following code shows how to use ByteBuffer.asReadOnlyBuffer() method.

/* w ww.j  a v a  2  s  .  c o m*/

import java.nio.ByteBuffer;

public class Main {
  public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putShort(2,(short)123);
    ByteBuffer buf = bbuf.asReadOnlyBuffer();
    System.out.println(buf.hashCode());
  }
}

The code above generates the following result.

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