getDouble()
The
getDouble() method of
java.nio.ByteBuffer class is used to read the next eight bytes at this buffer's current position, composing them into a double value according to the current byte order, and then increments the position by eight.
Syntax:
public abstract double getDouble()
Return Value: This method returns the double value at the buffer's current position
Throws: This method throws
BufferUnderflowException if the buffer’s current position is not smaller than its limit, then this exception is thrown.
Below are the examples to illustrate the getDouble() method:
Examples 1:
Output:
Original ByteBuffer:
1234.3456 2884.4444
Byte Value: 1234.3456
Next Byte Value: 2884.4444
Examples 2:
Output:
Original ByteBuffer:
1234.3456 2884.4444
Byte Value: 1234.3456
Next Byte Value: 2884.4444
there are fewer than eight bytes remaining in this buffer
Exception Thrown : java.nio.BufferUnderflowException
Reference: https://docs.oracle.com/javase/9/docs/api/java/nio/ByteBuffer.html#getDouble--
getDouble(int index)
The
getDouble(int index) method of
ByteBuffer is used to read eight bytes at the given index, composing them into a double value according to the current byte order.
Syntax :
public abstract double getDouble(int index)
Parameters: This method takes
index as parameter which is the index from which the Byte will be read.
Return Value: This method returns The double value at the given index
Exception: This method throws
IndexOutOfBoundsException. If index is negative or not smaller than the buffer’s limit this exception is thrown.
Below are the examples to illustrate the
getDouble(int index) method:
Examples 1:
Output:
Original ByteBuffer:
1234.3456 2884.4444
Byte Value: 1234.3456
Next Byte Value: 2884.4444
Examples 2:
