Package jminusminus

Class CLInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

jminusminus.CLInputStream

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable

class CLInputStream
extends DataInputStream

This class inherits from java.io.DataInputStream and provides an extra function for reading unsigned int from the input stream, which is required for reading Java class files.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
CLInputStream(InputStream in)	Constructs a CLInputStream object from the specified input stream.

Method Summary

Modifier and Type	Method	Description
long	readUnsignedInt()	Reads four input bytes and returns a long value in the range 0 through 4294967295.

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CLInputStream

public CLInputStream(InputStream in)

Constructs a CLInputStream object from the specified input stream.

Parameters:

in - input stream.

Method Details

readUnsignedInt

public long readUnsignedInt()
                     throws IOException

Reads four input bytes and returns a long value in the range 0 through 4294967295. Let a, b, c, d be the four bytes. The value returned is:

   ( b[ 0 ] & 0xFF ) << 24 ) |
   ( ( b[ 1 ] & 0xFF ) << 16 ) |
   ( ( b[ 2 ] & 0xFF ) << 8 ) |
   ( b[ 3 ] & 0xFF )
 

Returns:

the unsigned 32-bit value.

Throws:

EOFException - if this stream reaches the end before reading all the bytes.

IOException - if an I/O error occurs.