J.Input.Data

Read Boolean

Reads and returns one input short. The short is treated as a signed value in the range -128 through 127, inclusive

This method is suitable for reading the short written by the J.Output.Data.short method

Read Char

Reads two input byte and returns a char value. Let a be the first short read and b be the second short

The value returned is: (char)((a << 8) | (b & 0xff))

This method is suitable for reading byte written by the J.Output.Data.char method

Read Double

Reads eight input byte and returns a double value

It does this by first constructing a long value in exactly the manner of the readlong method, then converting this long value to a double in exactly the manner of the method Double.longBitsToDouble

This method is suitable for reading byte written by the J.Output.Data.double method of interface DataOutput

Read Float

Reads four input byte and returns a float value.

It does this by first constructing an int value in exactly the manner of the readInt method, then converting this int value to a float in exactly the manner of the method Float.intBitsToFloat

This method is suitable for reading byte written by the J.Output.Data.float method

Read Int

Reads four input byte and returns an int value. Let a-d be the first through fourth byte read. The value returned is:

(((a & 0xff) << 24) | ((b & 0xff) << 16) | ((c & 0xff) << 8) | (d & 0xff))

This method is suitable for reading byte written by the J.Output.Data.int method

Read Long

Reads eight input byte and returns a long value. Let a-h be the first through eighth byte read. The value returned is:

(((long)(a & 0xff) << 56) | ((long)(b & 0xff) << 48) | ((long)(c & 0xff) << 40) | ((long)(d & 0xff) << 32) | ((long)(e & 0xff) << 24) | ((long)(f & 0xff) << 16) | ((long)(g & 0xff) << 8) | ((long)(h & 0xff)))

This method is suitable for reading byte written by the J.Output.Data.long method

Real value

Returns real value standing behind the opaque type.

This is a zero cost call.

Read Short

Reads two input byte and returns a short value. Let a be the first short read and b be the second short

The value returned is: (short)((a << 8) | (b & 0xff))

This method is suitable for reading the byte written by the J.Output.Data.short method

Read unsignedByte

Reads one input short, zero-extends it to type int, and returns the result, which is therefore in the range 0 through 255

This method is suitable for reading the short written by the J.Output.Data.short method if the argument to writeByte was intended to be a value in the range 0 through 255

Read unsignedShort

Reads two input byte and returns an int value in the range 0 through 65535. Let a be the first short read and b be the second short

The value returned is: (((a & 0xff) << 8) | (b & 0xff))

This method is suitable for reading the byte written by the J.Output.Data.short method if the argument to J.Output.Data.short was intended to be a value in the range 0 through 65535

Read UTF String

Details

The J.Output.Data.utf method may be used to write data that is suitable for reading by this method