Java IO Tutorial - Java Buffer.mark()

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Syntax

Buffer.mark() has the following syntax.

public final Buffer mark()

Example

In the following code shows how to use Buffer.mark() method.

/*from  w  ww . j a v a 2s. c o 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.putShort(2,(short)123);
    System.out.println(Arrays.toString(bbuf.array()));
    bbuf.mark();
    bbuf.reset();
    System.out.println(Arrays.toString(bbuf.array()));
  }
}

The code above generates the following result.

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