Set/check run Environment for j2re-1.4.0 ?

2 Message(s) by 2 Author(s) originally posted in java setup

From: news

Date: Saturday, June 25, 2005

Hi,
I want to run

<operating system, programming> The process of carrying out
	the {instructions} in a computer program by a computer.

	See also {dry run}.

	(1996-05-13)

this JAVA ap. & I read:-
]Because Protg is written in JAVA, it'll run on any platform

Specific computer hardware, as in the phrase
	"platform-independent".  It may also refer to a specific
	combination of hardware and {operating system} and/or
	{compiler}, as in "this program has been ported to several
	platforms".  It is also used to refer to support software for
	a particular activity, as in "This program provides a platform
	for research into routing protocols".

	(1994-12-07)

that
]supports a version

<programming> One of a sequence of copies of a program, each
	incorporating new modifications.  Each version is usually
	identified by a number, commonly of the form X.Y where X is
	the major version number and Y is the release number.
	Typically an increment in X (with Y reset to zero) signifies a
	substantial increase in the function of the program or a
	partial or total re-implementation, whereas Y increases each
	time the progam is changed in any way and re-released.

	Version numbers are useful so that the user can know if the
	program has changed ({bugs} have been fixed or new functions
	added) since he obtained his copy and the programmer can tell
	if a bug report relates to the current version.  It is thus
	always important to state the version when reporting bugs.
	Statements about compatibility between different software
	components should always say which versions they apply to.

	See {change management}.

	(1997-12-07)

1.4.2 compliant JAVA Virtual Machine (this includes
]Windows XP, Linux

<operating system> ("Linus Unix") /li'nuks/ (but see below)
	An implementation of the {Unix} {kernel} originally written
	from scratch with no proprietary code.

	The kernel runs on {Intel} and {Alpha} hardware in the general
	release, with {SPARC}, {PowerPC}, {MIPS}, {ARM}, {Amiga},
	{Atari}, and {SGI} in active development.  The SPARC, PowerPC,
	ARM, {PowerMAC} - {OSF}, and 68k ports all support {shells},
	{X} and {networking}.  The Intel and SPARC versions have
	reliable {symmetric multiprocessing}.

	Work on the kernel is coordinated by Linus Torvalds, who holds
	the copyright on a large part of it.  The rest of the
	copyright is held by a large number of other contributors (or
	their employers).  Regardless of the copyright ownerships, the
	kernel as a whole is available under the {GNU} {General Public
	License}.  The GNU project supports Linux as its kernel until
	the research {Hurd} kernel is completed.

	This kernel would be no use without {application programs}.
	The GNU project has provided large numbers of quality tools,
	and together with other {public domain} software it is a rich
	Unix environment.  A compilation of the Linux kernel and these
	tools is known as a Linux distribution.  Compatibility modules
	and/or {emulators} exist for dozens of other computing
	environments.

	The kernel version numbers are significant: the odd numbered
	series (e.g. 1.3.xx) is the development (or beta) kernel which
	evolves very quickly.  Stable (or release) kernels have even
	major version numbers (e.g. 1.2.xx).

	There is a lot of commercial support for and use of Linux,
	both by hardware companies such as {Digital}, {IBM}, and
	{Apple} and numerous smaller network and integration
	specialists.  There are many commercially supported
	distributions which are generally entirely under the GPL.  At
	least one distribution vendor guarantees {Posix} compliance.
	Linux is particularly popular for {Internet Service
	Providers}, and there are ports to both parallel
	supercomputers and {embedded} {microcontrollers}.  {Debian} is
	one popular {open source} distribution.

	The pronunciation of "Linux" has been a matter of much debate.
	Many, including Torvalds, insist on the short I pronunciation
	/li'nuks/ because "Linus" has an /ee/ sound in Swedish
	(Linus's family is part of Finland's 6% ethnic-Swedish
	minority) and Linus considers English short /i/ to be closer
	to /ee/ than English long /i:/ dipthong.  This is consistent
	with the short I in words like "linen".  This doesn't stop
	others demanding a long I /li:'nuks/ following the english
	pronunciation of "Linus" and "minus".  Others say /li'niks/
	following {Minix}, which Torvalds was working on before Linux.

	{More on pronunciation
	(http://www.foldoc.org/pub/linux-pronunciation)}.

	{LinuxHQ (http://www.linuxhq.com/)}.  {slashdot
	(http://slashdot.org/)}.  {freshmeat (http://freshmeat.net/)}.
	{Woven Goods (http://www.fokus.gmd.de/linux/)}.  {Linux
	Gazette (http://www.ssc.com/lg)}.

	{funet Linux Archive (ftp://ftp.funet.fi/pub/Linux)}, {US
	mirror (ftp://sunsite.unc.edu/pub/Linux/)}, {UK Mirror
	(ftp://sunsite.doc.ic.ac.uk/packages/Linux/)}.

	(2000-06-09)

, and Macintosh

<computer> (Mac) The name of a product line and {operating
	system} {platform} manufactured by {Apple Computer, Inc.},
	originally based on the {Motorola 68000} {microprocessor}
	family and a proprietary {operating system}.  The Mac was
	Apple's successor to the {Lisa}.

	The project was proposed by {Jef Raskin} some time before
	{Steve Jobs}'s famous visit to {Xerox PARC}.  Jobs tried to
	scuttle the Macintosh project and only joined it later because
	he wasn't trusted to manage the {Lisa} project.

	The {Macintosh user interface} was notable for popularising
	the {graphical user interface}, with its easy to learn and
	easy to use {desktop} metaphor.

	The {Macintosh Operating System} is now officially called
	Mac OS.

	The first Macintosh, introduced in January 1984, had a
	{Motorola 68000} {CPU}, 128K of {RAM}, a small {monochrome}
	screen, and one built-in {floppy disk} drive with an external
	slot for one more, two {serial ports} and a four-voice sound
	generator.  This was all housed in one small plastic case,
	including the screen.  When more memory was available later in
	the year, a 512K Macintosh was nicknamed the "Fat Mac."

	The standard Macintosh screen {resolution} is 72 {dpi} (making
	one {point} = one {pixel}), exactly half the 144 dpi
	resolution of the ancient {Apple Imagewriter} {dot matrix}
	printer.

	The Mac Plus (January 1986) added expandability by providing
	an external {SCSI} port for connecting {hard disks}, {magnetic
	tape}, and other high-speed devices.

	The Mac SE (March 1987) had up to four megabytes of {RAM}, an
	optional built-in 20 megabyte hard disk and one internal
	expansion slot for connecting a third-party device.

	The Mac II (March 1987) used the faster {Motorola 68020} {CPU}
	with a 32-bit {bus}.

	In 1994 {PowerPC} based Macs, {Power Macs}, were launched, and
	in 1999, the {iMac}, updated on 2002-01-07.  The Power Mac G4
	(Quicksilver 2002) was the first Power Mac to clock at 1GHz and
	"Superdrives" (combined DVD-ROM, DVD-RW, CD-ROM, CD-RW)
	appeared in the iMac in 2002.  In mid 2003 the first G5
	Power Mac was released, the first Mac to be based on a 64-bit
	architecture.  {IBM} and not Motorola manufactured the CPU for
	this new generation of Power Macs.  The clock speed was
	initially 1.6GHz but a dual 2GHz system was available in
	September.

	Mac OS X is the successor to Mac OS 9, although its
	technological parent is the {NEXTSTEP} OS from {Next, Inc.},
	founded by Steve Jobs after he left Apple the first time.  OS
	X is based largely on the {BSD} UNIX system.  The core of the
	OS X operating system is released as free {source code} under
	the project name {Darwin}.

	If "Macintosh" were an acronym, some say it would stand for
	"Many Applications Crash, If Not, The Operating System Hangs".
	While this was true for pre Mac OS 9 systems, it is less true
	for Mac OS 9, and totally incorrect for Mac OS X, which has
	protected memory, so even if one application crashes, the
	system and other applications are unaffected.

	See also {Macintosh file system}, {Macintosh user interface}.

	{Apple Home (http://www.apple.com/)}.

	(2004-07-20)

machine

Common term for "computer", usually when considered at the
	hardware level.  The {Turing Machine}, an early example of
	this usage, was however neither hardware nor software, but
	only an idea.

	[Earlier use?]

	(1995-02-15)

s).

The latest linux installation I have got is Mandrake9 , which has:
j2re-1.4.0._01

Which I installed, but it did not have a man or any tutorial.

According to some old sun tutors and the actual kaffe 1.0.7,
'JAVAc ID.JAVA', complies ID.JAVA to create byte-code

<file format, software> A {binary} file containing an
	{executable} program, consisting of a sequence of ({op code},
	data) pairs.

	Byte-code op codes are most often fixed size binary patterns,
	but can be variable size.  The data portion consists of zero
	or more {bits} whose format typically depends on the op code.

	A byte-code program is interpreted by a {byte-code
	interpreter}.  The advantage of this technique compared with
	outputing {machine code} for some particular processor is that
	the same byte-code can be executed on any processor on which
	the byte-code interpreter runs.  The byte-code may be compiled
	to machine code ("native code") for speed of execution but
	this usually requires significantly greater effort for each
	new taraget architecture than simply porting the interpreter.

	For example, {Java} is compiled to byte-code which runs on the
	{Java Virtual Machine}.

	(2006-05-29)

file: ID.class .
And 'JAVA ID' runs the byte-code.
I tested helloWorld after installing kaffe 1.0.7, my first JAVA action !

Now when I want to 'extend' to the newly installed j2re-1.4.0._01,
I can not find any JAVAc executable.
All executables are binary, except a script: ControlPanel, which
ends with:
<SomeDir>/bin/JAVA -D<long string

<programming> A sequence of {data} values, usually {bytes},
	which usually stand for {characters} (a "character string").
	The {mapping} between values and characters is determined by
	the {character set} which is itself specified implcitly or
	explicitly by the environment in which the string is being
	interpreted.

	The most common character set is {ASCII} but, since the late
	1990s, there has been increased interest in larger character
	sets such as {Unicode} where each character is represented by
	more than eight {bits}.

	Most programming languages consider strings (e.g.
	"124:shabooya:\n", "hello world") basically distinct from
	numbers which are typically stored in fixed-length {binary} or
	{floating-point} representation.

	A {bit string} is a sequence of {bits}.

	(1999-12-21)

of args>

When I run this script, I see error

1. A discrepancy between a computed, observed, or measured
	value or condition and the true, specified, or theoretically
	correct value or condition.

	2. <programming> A mental mistake made by a programmer that
	may result in a program {fault}.

	3. (verb) What a program does when it stops as result of a
	programming error.

	(2000-03-28)

messages.

Q- how do I activate the compiler

<programming, tool> A program that converts another program
	from some {source language} (or {programming language}) to
	{machine language} (object code).  Some compilers output
	{assembly language} which is then converted to {machine
	language} by a separate {assembler}.

	A compiler is distinguished from an assembler by the fact that
	each input statement does not, in general, correspond to a
	single machine instruction or fixed sequence of instructions.
	A compiler may support such features as automatic allocation
	of variables, arbitrary arithmetic expressions, control
	structures such as FOR and WHILE loops, variable {scope},
	input/ouput operations, {higher-order functions} and
	{portability} of source code.

	{AUTOCODER}, written in 1952, was possibly the first primitive
	compiler.  {Laning and Zierler}'s compiler, written in
	1953-1954, was possibly the first true working algebraic
	compiler.

	See also {byte-code compiler}, {native compiler}, {optimising
	compiler}.

	(1994-11-07)

?

Q - what are the essential env-vars for j2re & how are they set.

Thanks for any info.

== Chris Glur.

From: Nigel Wade

Date: Wednesday, April 12, 2006

wrote in message:

Hi,
I want to run this JAVA ap. & I read:-
]Because Protg is written in JAVA, it'll run on any platform that
]supports a version 1.4.2 compliant JAVA Virtual Machine (this includes
]Windows XP, Linux, and Macintosh machines).
The latest linux installation I have got is Mandrake9 , which has:
j2re-1.4.0._01
Which I installed, but it did not have a man or any tutorial.
According to some old sun tutors and the actual kaffe 1.0.7,
'JAVAc ID.JAVA', complies ID.JAVA to create byte-code file: ID.class .
And 'JAVA ID' runs the byte-code.
I tested helloWorld after installing kaffe 1.0.7, my first JAVA action !
Now when I want to 'extend' to the newly installed j2re-1.4.0._01,
I can not find any JAVAc executable.
All executables are binary, except a script: ControlPanel, which
ends with:
<SomeDir>/bin/JAVA -D<long string of args>
When I run this script, I see error messages.
Q- how do I activate the compiler ?
Q - what are the essential env-vars for j2re & how are they set.
Thanks for any info.
== Chris Glur.

The JRE

<language> (JRE) The part of the {Java Development Kit}
	required to run Java programs.  The JRE consists of the {Java
	Virtual Machine}, the {Java} platform core {classes} and
	supporting files.  It does not include the compiler, debugger
	or other tools present in the JDK.  The JRE is the smallest
	set of executables and files that constitute the standard Java
	platform.

	(1998-11-30)

(as in j2re...) is the JAVA Runtime Environment. It has all the
necessary components for running JAVA applications, applets etc. It does
not have the necessary components for developing JAVA applications, and
that includes the JAVA compiler, JAVAc.

You need to install the JAVA Development Kit. That might be called the
JDK or the SDK

{Software Developers Kit} (or "Software Development Kit").

(Sun

can not make up their minds, and change it with every
minor release).

Try http://JAVA.sun.com/j2se/1.4.2/download.html for the latest 1.4 SDK
release. Ther you'll find the download, and installation instructions.

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