Java IO Tutorial - Java ByteBuffer.putDouble(int index, double value)

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Syntax

ByteBuffer.putDouble(int index, double value) has the following syntax.

public abstract ByteBuffer putDouble(int index,   double value)

Example

In the following code shows how to use ByteBuffer.putDouble(int index, double value) method.

/*from  w w  w .j av  a 2 s. c  om*/
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.putDouble(2,123);
    
    System.out.println(Arrays.toString(bbuf.array()));
  }
}

The code above generates the following result.

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