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Standard installation of JavaOC/JavaOCW:
- Download the latest version from www.aplu.ch/javaoc.
- Unpack in any folder. You get the files javaoc.exe, javaocw.exe, readme.txt.
- Copy javaoc.exe and javaocw.exe in a directory which is part of the path, typically c:\windows\system32.
- Determine the current version of the Java Runtime Environment by typing java -version from a command shell.
- Look for the home directory of this JRE, typically
c:\Program Files\Java\jreNNN, where NNN is the version.
- Create a system environment variable jrehome, which points to this directory (info). Check from a newly opened command shell by typing set jrehome. Typically you get
jrehome=c:\Program Files\Java\jreNNN.
- Try your first program without a main-method. You may proceed as follows: Create the source file MyFirst.java with some editor, e.g. notepad.
A suggestion is:
// MyFirst.java
class MyFirst
{
MyFirst()
{
int items = 1234;
double price = 2.55;
double toPay = items * price;
System.out.print(toPay);
}
} |
Compile with javac MyFirst.java and run with javaoc MyFirst resp. javaocw MyFirst.
- Inform you about the command line parameters by typing javaoc -h or javaoc -help. You get typically:
JavaOC: Java Object Creator (Version nn - Date)
Author: Aegidius Pluess, www.aplu.ch
Usage: javaoc [-options] className [args...]
Launch a Java Virtual Machine (JVM) and create an instance
of given className using constructor with given arguments.
Options are:
-cp <class search path of directories>
(replaces value of environment variable "classpath"
the current path . is always included)
-jrehome <home directory of installed JRE>
(replaces value of environment variable "jrehome")
-verbose enable verbose output
-usemain: if main() is present, invoke it [with args]
(instead of object creation)
-h[elp]: show this text
Illegal options are ignored.
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- Try the verbose-option by typing javaoc -verbose MyFirst resp. javaocw -verbose MyFirst. You get
typically
Enumerating public methods of class MyFirst:
hashCode
getClass
wait
wait
wait
equals
notify
notifyAll
toString
Number of public methods: 9
Enumerating constructors of class MyFirst:
MyFirst()
Number of constructors: 1
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- The usemain-option gives you a (restricted) backward compatibility with java resp. javaw. Try it with a program which contains a main-method.
- In order to include JavaOC in your favorite IDE, follow the instructions how to set the options to run a program. Normally you may choose in the configuration options which program is used. Change java to javaoc resp. javaw to javaocw.
JavaOC/JavaOCW uses the environment variable CLASSPATH but accepts also the option -cp or -classpath, which supersedes the value of the environment variable.
The following example for JCreator gives you an idea how to proceed.
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