drjava-users — DrJava users' discussion

[Drjava-users] DrJava Stable Release

[Charles R. <cr...@ri...>]

  A new stable release of DrJava is now available from http://drjava.org.
This release should resolve most of the recent problems users have
experienced with resetting the Interactions Pane.  If you have any trouble
with it, let us know!

Charlie Reis

[Drjava-users] DrJava Development Release

[Charles R. <cr...@ri...>]

   I've just released a new development version of DrJava that includes a 
substantial rewrite of the communication between the two JVMs (one for the main 
DrJava program, one for the Interactions Pane).  If you have been having trouble 
using the Interactions Pane because of messages saying it is "unable to 
connect", please download and try this new version (drjava-20030115-2237), which 
should fix the problem.  If it works on all platforms, we will use this new code 
in future stable releases.

(Thanks to Brian Stoler for the majority of the new code!)

Charlie

[Drjava-users] DrJava Stable Release

[Charles R. <cr...@ri...>]

   A new stable version of DrJava has just been released!  This release 
includes mainly bug fixes and usability enhancements since the last 
stable release, and it is intended as a milestone build.  Notably, it 
includes improved JUnit support and support for JDK 1.4.1 and JSR-14 
versions 1.2 and 1.3.

   You can download this release from our website (http://drjava.org).

Charlie Reis

Re: [Drjava-users] Keyboard Input with the Interactions window

[Charles R. <cr...@ri...>]

   At the moment, DrJava does not support reading from System.in within 
the Interactions pane.  There are both logistical and pedagogic reasons 
for this, but I'm not sure what our final decision will be yet-- it's 
still a topic of discussion.  There's some related information on this 
report:

http://sourceforge.net/tracker/index.php?func=detail&aid=604309&group_id=44253&atid=438935

   I'll try to keep you updated on our decision, but it might be worth 
looking into avoiding System.in (given the strengths of the Interactions 
pane).

Charlie


Carl Pulley wrote:
> Dear all,
>   I'm having problems using some code to simplify keyboard input for my 
> students (Dr.Java version 20020814-0343; JDK 1.3.1; OS Mac OSX 10.2.1 - 
> reported problems are also verified on a Solaris setup).
> 
>   The code I'm using is as follows:
> 
> public class read {
> 
>   static public int getInt(String prompt) {
>     System.out.print(prompt);
>     BufferedReader In = new BufferedReader(new 
> InputStreamReader(System.in));
>     while (true) {
>       try {
>         System.out.print("[GetInt]");
>         String s = (In.readLine()).trim();
>         int y = (new Integer(s)).intValue();
>         return y;
>       } catch (Exception e) {
>         System.out.println("Incorrect input format, please enter again: ");
>       }
>     }
>   }
> 
> }
> 
>   and the following is typed into the interactions pane:
> 
> int x = read.getInt("enter: ");
> 
>   The result is that Dr.Java hangs with a spinning wrist watch.
> 
>   As far as I can tell, the problem seems to be that my code is assuming 
> that keyboard input will be derived from the System.in stream. I guess 
> that Dr. Java assumes that keyboard input derives from an alternative 
> stream?
> 
>   Any help with this one or alternative code for simplifying keyboard 
> input is greatly appreciated.
> 
>   Many thanks in advance,
> 
>     Carl.
> 
> -- 
> Dr. Carl Pulley (Lecturer)
> School of Computing and Mathematics,
> University of Huddersfield,             email: c.j...@hu...
> Huddersfield                            WWW: http://scom.hud.ac.uk/scomcjp
> 
> 
> 
> -------------------------------------------------------
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[Drjava-users] Keyboard Input with the Interactions window

[Carl P. <C.J...@hu...>]

Dear all,
   I'm having problems using some code to simplify keyboard input for my 
students (Dr.Java version 20020814-0343; JDK 1.3.1; OS Mac OSX 10.2.1 - 
reported problems are also verified on a Solaris setup).

   The code I'm using is as follows:

public class read {

   static public int getInt(String prompt) {
     System.out.print(prompt);
     BufferedReader In = new BufferedReader(new 
InputStreamReader(System.in));
     while (true) {
       try {
         System.out.print("[GetInt]");
         String s = (In.readLine()).trim();
         int y = (new Integer(s)).intValue();
         return y;
       } catch (Exception e) {
         System.out.println("Incorrect input format, please enter again: 
");
       }
     }
   }

}

   and the following is typed into the interactions pane:

int x = read.getInt("enter: ");

   The result is that Dr.Java hangs with a spinning wrist watch.

   As far as I can tell, the problem seems to be that my code is 
assuming that keyboard input will be derived from the System.in stream. 
I guess that Dr. Java assumes that keyboard input derives from an 
alternative stream?

   Any help with this one or alternative code for simplifying keyboard 
input is greatly appreciated.

   Many thanks in advance,

     Carl.

--
Dr. Carl Pulley (Lecturer)
School of Computing and Mathematics,
University of Huddersfield,             email: c.j...@hu...
Huddersfield                            WWW: 
http://scom.hud.ac.uk/scomcjp

[Drjava-users] New DrJava release supports Java 1.4.1 / JSR-14 v1.2

[Charles R. <cr...@ri...>]

   The drjava-20020913-2254 release adds support for the Java 1.4.1 and 
JSR-14 v1.2 compilers.  The JSR-14 compiler is an experimental compiler 
available from Sun which supports generics.  DrJava developers can also 
now use JSR-14 v1.2 to compile the DrJava codebase.

   Download this release if you need to use either of these compilers 
within DrJava, and let us know if you have any problems.

Direct link to the release:
http://sourceforge.net/project/showfiles.php?group_id=44253&release_id=110914

Link to download JSR-14 (free login required):
http://developer.java.sun.com/developer/earlyAccess/adding_generics

Charlie

Re: [Drjava-users] drjava under Windows XP professional

[Charles R. <cr...@ri...>]

   Actually, we just finished adding support for the Java 1.4.1 compiler 
yesterday, since it uses a different interface than the other Java 
compilers.  I'll try to release a version with this support tomorrow-- 
I'll let you know when it's ready.

Hope that helps...
Charlie Reis


Pierre CHATEL wrote:
> Hello, i'm kinda new to the list...
> 
> I have two problems:
> 
> *For drjava20020906-2148:
> when i double-click on drjava jar file it opens a dialog box asking for
> tools.jar, but when i select it (i use j2sdk1.4.1) it says it can't find
> the compiler in it!
> 
> *For drjava20020814(stable):
> It says it can't find the main class in the jar file when i double-click
> on it
> 
> Help me please :)
> 
> Pierre
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
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[Drjava-users] drjava under Windows XP professional

[Pierre C. <add...@wa...>]

Hello, i'm kinda new to the list...

I have two problems:

*For drjava20020906-2148:
when i double-click on drjava jar file it opens a dialog box asking for
tools.jar, but when i select it (i use j2sdk1.4.1) it says it can't find
the compiler in it!

*For drjava20020814(stable):
It says it can't find the main class in the jar file when i double-click
on it

Help me please :)

Pierre

Re: [Drjava-users] no debug panel

[Charles R. <cr...@ri...>]

Hi Mike--
   Were you the one who submitted the support request on Monday about 
this issue?  I posted a brief follow-up, but I'm not sure what the exact 
problem is yet.  Have you tried using either the latest stable version 
(drjava-stable-20020814) or the latest development version 
(drjava-20020906-2148)?  Also, after you try to start Debug Mode, look 
at the Console tab to see if any exceptions are being printed, and if 
so, let me know.
   If anyone else has been having this problem as well, let me know, 
since I haven't seen it on the Linux machines I've tested.

Thanks,
Charlie


Michael Hicks wrote:
> Has anyone else run across the following problem:
> 
> I am able to start the debugger in Dr. Java, by turning debug mode on.
> However, no debug panel pops up.  I can successfully set breakpoints and
> step through the code using the debugger menu.  I am using Sun's SDK for
> Java 1.4, and running on RedHat Linux 7.3.
> 
> Thanks!
> Mike
> 
> 
> 
> -------------------------------------------------------
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> www.osdn.com/911/
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> Drjava-users mailing list
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[Drjava-users] no debug panel

[Michael H. <mw...@cs...>]

Has anyone else run across the following problem:

I am able to start the debugger in Dr. Java, by turning debug mode on.
However, no debug panel pops up.  I can successfully set breakpoints and
step through the code using the debugger menu.  I am using Sun's SDK for
Java 1.4, and running on RedHat Linux 7.3.

Thanks!
Mike

[Drjava-users] Re: i don't manage to send a message

[Charles R. <cr...@ri...>]

Hello--
   This is a bug that we had relating to non-English locales, which is 
now fixed in the drjava-20020906-2148 development release.  You can 
download it from the following link:

http://sourceforge.net/project/showfiles.php?group_id=44253&release_id=109373

(The correct version should be highlighted in red.)

Hope that helps,
Charlie Reis


Othman Haddad wrote:
> 
> can you please post this message for me?, i don't manage to send it:
>  
> ********************************************
> hi,
> i've tried to launch DrJava whith the following command line:
>  
> 
> java -jar drjava-stable-20020814.jar
> 
> unfortunately i'm having this message all the time:
> 
> *java.lang.ExceptionInInitializerError: Could not parse configuration 
> option.*
> 
> *Option: key.save.file.as*
> 
> *Given value: "ctrl maj S"*
> 
> *Must be a valid string representation of a Keystroke.*
> 
> *at 
> edu.rice.cs.drjava.config.KeyStrokeOption.parse(KeyStrokeOption.java:114)*
> 
> *at 
> edu.rice.cs.drjava.config.KeyStrokeOption.parse(KeyStrokeOption.java:52)*
> 
> *at edu.rice.cs.drjava.config.OptionParser.setString(OptionParser.java:104)*
> 
> *at 
> edu.rice.cs.drjava.config.KeyStrokeOption.setString(KeyStrokeOption.java:52)*
> 
> *at 
> edu.rice.cs.drjava.config.DefaultOptionMap.setString(DefaultOptionMap.java:68)*
> 
> *at 
> edu.rice.cs.drjava.config.OptionMapLoader.<clinit>(OptionMapLoader.java:75)*
> 
> *at 
> edu.rice.cs.drjava.config.SavableConfiguration.loadConfiguration(SavableConfiguration.java:71)*
> 
> *at 
> edu.rice.cs.drjava.config.FileConfiguration.loadConfiguration(FileConfiguration.java:66)*
> 
> *at 
> edu.rice.cs.drjava.config.DefaultFileConfig.evaluate(ConfigurationTool.java:81)*
> 
> *at 
> edu.rice.cs.drjava.config.ConfigurationTool.<clinit>(ConfigurationTool.java:64)*
> 
> *at edu.rice.cs.drjava.DrJava.<clinit>(DrJava.java:64)*
> 
> ---------------------------
> 
> can anybody help me with this please?
> 
>  
> 
> **********************************************
> 
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[Drjava-users] first message

[Brian S. <bs...@bs...>]

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