ByteBuffer.putDouble(double value) has the following syntax.
public abstract ByteBuffer putDouble(double value)
In the following code shows how to use ByteBuffer.putDouble(double value) method.
/*from w w w . j a v a 2 s . 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.putDouble(123); System.out.println(Arrays.toString(bbuf.array())); } }
The code above generates the following result.