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








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.