Java IO Tutorial - Java ByteBuffer.put(int index, byte b)

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Syntax

ByteBuffer.put(int index, byte b) has the following syntax.

public abstract ByteBuffer put(int index,  byte b)

Example

In the following code shows how to use ByteBuffer.put(int index, byte b) method.

/*from w  ww.j a va2 s.  co  m*/

import java.nio.ByteBuffer;
import java.util.Arrays;

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.put(0,(byte)2);
    
    System.out.println(Arrays.toString(bbuf.array()));
  }
}

The code above generates the following result.

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