Nabble - drjava-users

DrJava Development Release 20091021

2009-10-21T13:12:07Z

Dear DrJava Users:

We have made a new development version available: drjava-20091021-r5122

You can download it from SourceForge.net by following this link:

< https://sourceforge.net/projects/drjava/files/2.%20DrJava%20Development%20Releases/drjava-20091021-r5122/
>

You receive this email because you have subscribed to a DrJava mailing list.

A new DrJava development release is
available for download at http://drjava.org .

DrJava is a lightweight programming environment
for Java designed to foster test-driven software
development. It includes an intelligent program editor,
an interactions pane for evaluating program text, a
source level debugger, and a unit testing tool.

In addition to bug fixes, this development release
includes a number of new features introduced after the
last stable release:

Most significant is JUnit 4 support, ConcJUnit
support, and preliminary OpenJDK support.

New features since the last stable release:
- JUnit 4.7 support.
- ConcJUnit support (for concurrent unit tests;
see http://www.concutest.org/ ).
- Preliminary OpenJDK support.
- Access control for private and package private
members now enabled by default.

Bug fixes since the last stable release:
- Fixed some indentation bugs.
- Fixed some GUI initialization problems that
prevented DrJava from starting on some systems
- Fixed a bug that prevented DrJava from opening
on MacOS 10.5 or 10.6.
- Fixed compiler error when closing curly brace
missing.
- Fixed NullPointerException in Jar Project dialog.
- Improved suggestion to increase interactions JVM
heap.

[SourceForge.net Release] drjava : 2. DrJava Development Releases

Project: DrJava (drjava)
Package: 2. DrJava Development Releases
Date : 2009-10-21 1:25

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DrJava Stable Release 20090821

2009-08-20T22:53:35Z

Dear DrJava Users:

We have made a new stable version available: drjava-stable-20090821-r5004

You can download it from SourceForge.net by following this link:

https://sourceforge.net/projects/drjava/files/1.%20DrJava%20Stable%20Releases/drjava-stable-20090821-r5004/

You receive this email because you have subscribed to a DrJava mailing list.

Available for download at http://drjava.org .

DrJava is a lightweight programming environment
for Java designed to foster test-driven software
development. It includes an intelligent program editor,
an interactions pane for evaluating program text, a
source level debugger, and a unit testing tool.

In addition to bug fixes, this beta release includes
a number of new features introduced after the last
stable release:

These features include default imports for the
Interactions Pane, inner classes as main class for
projects, Javadocs and auto-completion
for JUnit, Javadocs and auto-completion for user-defined
libraries ("Additional Javadoc URLs").

An applet viewer is included, and classes that extend
Applet can be run using the "Run Document as Applet"
menu item (under "Tools") or using the "applet MyClass"
command in the Interactions Pane.

The debugger has been improved and now includes
an automatic trace feature to step through the code
at a user-determined interval, array element watches
in the debugger, and the ability to debug language level
files without seeing the Java code that they get
translated to. The debugger also retains the imports
that have been made before the last step was taken
or a breakpoint was hit.

DrJava can now also associate source, project and
add-on files with DrJava so that they can be opened
by double-clicking on them in the Windows Explorer
or MacOS Finder (.java, .drjava, and .djapp files).

The source browser was improved: Browse forward
and backward like in a web browser!

Since there still is an incompatibility between
Sun's Swing GUI library and the the Compiz window
manager on Linux, we now check for the presence
of Compiz and display a warning.

Notable is the ability to close the System.in stream in
the Interactions Pane and an automatic update feature
that downloads new versions of DrJava automatically.

The most important bug fixes include changes to the
language level converter, compatibility with network paths,
a debugger deadlock, and color preferences.

Note: The default project file extension now is
.drjava, not .xml anymore.

Note: Java 1.4 compatibility has been dropped with this
release. To use DrJava, you will need Java 5 or newer.

New features since the last stable release:
- Interactions pane options: Require variable types,
require semicolon, access control checks for private
and package private members.

- File associations in Windows and Mac OS.
- Improved source browser.
- Display and select from all installed JDKs.
- Reorganized Preferences dialog.
- Compiz warning.
- Interactions Pane parser allows annotations.
- Completed support for nested classes (static and
non-static) in Interactions Pane.

- The System.in stream can be closed by pressing Ctrl-D
when in the input box.
- Imported classes and packages can persist over
breakpoints and debugger steps. To enable or disable this,
change the setting in the Debugger tab of the Preferences.
- Default imports for the Interactions Pane
- Inner classes as main class for projects
- Javadocs and auto-completion for JUnit (3.8.2).
- Javadocs and auto-completion for user-defined libraries
("Additional Javadoc URLs")
- Automatic tracing in the debugger.
- Array element watches in the debugger.
- Automatic update feature ("Help/Check for New Version")
- Applet viewer
- Multiple key bindings per action
- Improved Jar creation dialog
- Find All/Replace All can be limited to a selected
section of code

Bug fixes since the last stable release:
- Bug fixes for Language Level facility.
- Updated JGoodies Plastic look-and-feel.
- Bug fixes for Interactions Pane: arrays, break
statement, switch, non-void main methods.
- NullPointerException After Closing File with Error
- Mac OS X Java VM selection for 64-bit

- Bug fix for Icelandic keyboard to allow
braces { } to be entered.
- Miscellaneous Interactions Pane parser bug fixes.
- Bug fixes in type checking in Interactions Pane.
- Implemented qualified super expressions in
Interactions Pane.
- Fixed name resolution issues involving circular
dependencies.

- When the "java MyClass" command is used to start a
program in the Interactions Pane, the command is not
translated to "new MyClass().main(...)" anymore, but
retained as "java MyClass".
- If DrJava is unable to restart itself, e.g. if the heap size
is too large for the machine, DrJava asks the user if it
should reset the configuration and try again.
- Javadoc 6 is now linked correctly in the "Open
Javadoc" feature.
- Several bug fixes related to unit testing and the debugger.
- "Open Java API Javadoc for Word Under Cursor..."
has been fixed.
- Better behavior for next/previous word and selection of
word by double-clicking in Definitions Pane.
- Fixed syntax highlighting and interpretation of long literals
and hexadecimal literals
- Fixed problems with modal dialog boxes when the user
switches to another application.
- Fixed a memory leak.
- Several language level fixes.
- Filtered ASCII text when pasting.
- Fixed network paths in projects.
- Colors can now be configured again.
- Documents that have been closed are not re-opened
again if they contained failing unit tests.
- Removed a deadlock when debugging unit tests.
- Debugging language level files does not open the
generated Java code anymore; line numbers in language
level files are correct.
- Closing a file does not remove all breakpoints and
bookmarks anymore.
- Fixed "No Test Cases" in Find/Replace panel
- Empty files are not considered "out of sync" anymore
during JUnit testing

[SourceForge.net Release] drjava : 1. DrJava Stable Releases

Project: DrJava (drjava)
Package: 1. DrJava Stable Releases
Date : 2009-08-21 05:32

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DrJava Beta Release 20090803

2009-08-03T19:51:03Z

Dear DrJava Users:

We have made a new beta version available: drjava-beta-20090803-r4975/

You can download it from SourceForge.net by following this link:

< https://sourceforge.net/projects/drjava/files/1.%20DrJava%20Stable%20Releases/drjava-beta-20090803-r4975/
>

You receive this email because you have subscribed to a DrJava mailing list.

Available for download at http://drjava.org .

DrJava is a lightweight programming environment for Java designed to
foster test-driven software development. It includes an intelligent
program editor, an interactions pane for evaluating program text, a
source level debugger, and a unit testing tool.

In addition to bug fixes in anticipation of the next stable release,
this second beta release includes a number of new features introduced
after the last beta release:

These features include the ability to associate source, project and
add-on files with DrJava so that they can be opened by double-clicking
on them in the Windows Explorer or MacOS Finder (.java, .drjava, and
.djapp files).

The source browser was improved: Browse forward and backward like in a
web browser!

Since there still is an incompatibility between Sun's Swing GUI
library and the the Compiz window manager on Linux, we now check for
the presence of Compiz and display a warning.

Note: The default project file extension now is .drjava, not .xml anymore.

Note: Java 1.4 compatibility has been dropped with this release. To
use DrJava, you will need Java 5 or newer.

New features:
- File associations in Windows and Mac OS.
- Improved source browser.
- Display and select from all installed JDKs.
- Reorganized Preferences dialog.
- Compiz warning.
- Interactions Pane parser allows annotations.
- Completed support for nested classes (static and
non-static) in Interactions Pane.

Bug fixes:
- Bug fix for Icelandic keyboard to allow braces { } to be entered.
- Miscellaneous Interactions Pane parser bug fixes.
- Bug fixes in type checking in Interactions Pane.
- Implemented qualified super expressions in Interactions Pane.
- Fixed name resolution issues involving circular dependencies.
- Small bug fixes for Language Level facility.

[SourceForge.net Release] drjava : 1. DrJava Stable Releases

Project: DrJava (drjava)
Package: 1. DrJava Stable Releases
Date : 2009-08-03 21:44

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Re: Can Dr. JAVA handle GUIs?

2009-06-19T17:43:37Z

Asit,

If you mean like Visual Studio's design surface for windows forms creation, no, Dr. Java does not support this.

-- Matt

On Fri, Jun 19, 2009 at 2:16 PM, asit dhal <lipun4u@...> wrote:

Sciguy77 wrote:
>
> This may be a dumb question, but I don't see a JAVA editor window as in
> C#, can Dr. JAVA handle objects, animations, etc.?
>

I don't know about animations...but it can handle GUIs like swing, etc
--
View this message in context: http://www.nabble.com/Can-Dr.-JAVA-handle-GUIs--tp21513678p24117352.html

Sent from the drjava-users mailing list archive at Nabble.com.

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Re: Can Dr. JAVA handle GUIs?

2009-06-19T12:16:40Z

Sciguy77 wrote:

This may be a dumb question, but I don't see a JAVA editor window as in C#, can Dr. JAVA handle objects, animations, etc.?

I don't know about animations...but it can handle GUIs like swing, etc

Can Dr. JAVA handle GUIs?

2009-01-16T22:50:01Z

This may be a dumb question, but I don't see a JAVA editor window as in C#, can Dr. JAVA handle objects, animations, etc.?

DrJava Eclipse Plug-in 20090115

2009-01-15T12:10:55Z

An update to the DrJava Eclipse plug-in has been posted.

Release Notes:

This update to the DrJava Eclipse plug-in integrates bug fixes,
performance improvements, and new features added to DrJava over the
last two years. Significantly, the Interactions interpreter has been
rewritten to fully support generics, type inference, and other Java 5
features. The plug-in also improves compatibility with the latest
versions of Eclipse.

CHANGED INSTALLATION INSTRUCTIONS:

Unzip drjava-eclipse-20090115-r4708.zip to access the plug-in jar
file: edu.rice.cs.drjava_0.9.9.20090115-r4708.jar. Copy the plug-in
jar to your Eclipse installation's plug-in directory. Additional
packaging (README, etc.) may be discarded.

—Dan

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Re: DrJava Stable Release Update 20080904

2008-09-04T13:33:54Z

A DrJava stable release update has been posted.

Release Notes:

Available for download at http://drjava.org. This is a minor update to
the recent stable release, fixing a bug in the execution of unit tests.

Notes from the original stable release (20080828):

Most prominently, a bug in JDK 1.6.0_04+ has rendered previous stable
versions of "drjava.exe" unusable when compiling with affected JDKs (a
"Cannot read zip file entry" error will occur). This release addresses
the issue.

Major new features include i) an improved Interactions interpreter
with full support for generics and ii) integrated support for external-
process-based tools. Performance of "Find Next" and "Find All" has
been dramatically improved, as well as the performance of auto-
indenting.

The project file format has been changed (as of release
drjava-20080415-1537-r4441). Previous DrJava version will not
recognize the new project file format.

Users may also notice i) an optional platform-information survey at
startup, and ii) automatic background checking for new DrJava
versions. (Both of these can be turned off.)

—Dan

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DrJava Stable Release 20080828

2008-08-28T10:42:02Z

A DrJava stable release has been posted.

Release Notes:

Available for download at http://drjava.org. This beta release
incorporates a number of improvements since the last DrJava stable
release.

Most prominently, a bug in JDK 1.6.0_04+ has rendered previous stable
versions of "drjava.exe" unusable when compiling with affected JDKs (a
"Cannot read zip file entry" error will occur). This release
addresses the issue.

Major new features include i) an improved Interactions interpreter
with full support for generics and ii) integrated support for external-
process-based tools. Performance of "Find Next" and "Find All" has
been dramatically improved, as well as the performance of auto-
indenting.

The project file format has been changed (as of release
drjava-20080415-1537-r4441). Previous DrJava version will not
recognize the new project file format.

Users may also notice i) an optional platform-information survey at
startup, and ii) automatic background checking for new DrJava
versions. (Both of these can be turned off.)

—Dan

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DrJava Beta Release 20080820

2008-08-20T13:03:25Z

A DrJava beta release has been posted.

Release Notes:

Available for download at http://drjava.org. This beta release
incorporates a number of improvements since the last DrJava stable
release.

Most prominently, a bug in JDK 1.6.0_04+ has rendered previous stable
versions of "drjava.exe" unusable when compiling with affected JDKs (a
"Cannot read zip file entry" error will occur). This release
addresses the issue.

Major new features include an improved Interactions interpreter with
full support for generics and integrated support for external-process-
based tools. Performance of "Find Next" and "Find All" has been
dramatically improved, as well as the performance of auto-indenting.

The project file format has been changed (as of release
drjava-20080415-1537-r4441). Previous DrJava version will not
recognize the new project file format.

Users may also notice an optional platform-information survey at
startup, and automatic background checking for new DrJava versions.
(Both of these can be turned off.)

—Dan

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DrJava won't compile. Using IcedTea 7

2008-04-05T19:11:27Z

Greetings!
This is my first post so bear with me;

I'm using Dr.Java in one of my classes and I can't get it to compile. I've reinstalled Ubuntu 7.10 numerous times thinking that I had a corrupted install of JDK and/or Ubuntu.

I'm using "drjava-stable-20080106-0744" and "icedtea-java7-jdk" on a freshly installed Ubuntu 7.10 Gutsy Gibbon

I have done "locate tools.jar" as well as found it manually, and told Dr.Java in the preferences window where it was, and it still says "Compiler: None" and wont compile. I've used it successfully on a Windows laptop, and its the same code that successfully ran on said laptop.

Is there something I'm missing? I have all of the necessary software and I have it set up correctly (so I think at least).

Here is some additional info about the software I have installed:

me@computer:~$ java -version
java version "1.7.0"
IcedTea Runtime Environment (build 1.7.0-b21)
IcedTea Client VM (build 1.7.0-b21, mixed mode, sharing)

me@computer:~$ javac -version
javac 1.7.0-internal

me@computer:~$ sudo update-alternatives --config java
There are 2 alternatives which provide `java'.

Selection Alternative
-----------------------------------------------
1 /usr/bin/gij-4.2
*+ 2 /usr/lib/jvm/java-7-icedtea/jre/bin/java

me@computer:~$ sudo update-alternatives --config javac
There is only 1 program which provides javac
(/usr/lib/jvm/java-7-icedtea/bin/javac). Nothing to configure.

me@computer:~$ locate tools.jar
/usr/lib/jvm/java-7-icedtea/lib/tools.jar
^ is what I have located in Dr.Java preferences.

can't compile using fedora 8 and IcedTea

2008-03-13T20:26:25Z

Hi,

I am using Fedora 8, X86_64, IcedTea (IcedTea is RedHat
compiled/distributed OpenJDK).

I have used the 32 bit Sun JDK with DrJava on 32 bit Fedora 8 in the
past without any problems.

However I can't compile on this new machine.

$ java -jar drjava-stable-20080106-0744.jar

...runs and navigates code, etc. but there is no compiler available.

I ran updatedb and locate to find the tools.jar file, which I added to
the Edit-Preferences->Tools.jar Location :

/usr/lib/jvm/java-1.7.0-icedtea-1.7.0.0.x86_64/lib/tools.jar

And when I unzip the tools.jar file it has classes below javac :

$ ls sun/tools/javac/
BatchEnvironment.class CompilerMember.class ErrorMessage.class
resources SourceMember.class
BatchParser.class ErrorConsumer.class Main.class
SourceClass.class

Also command line "java" and "javac" work :

$ java -version
java version "1.7.0"
IcedTea Runtime Environment (build 1.7.0-b21)
IcedTea 64-Bit Server VM (build 1.7.0-b21, mixed mode)

$ javac -version
javac 1.7.0-internal

And the "alternatives" system looks okay :

$ /usr/sbin/alternatives --config java

There are 2 programs which provide 'java'.

Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.7.0-icedtea.x86_64/bin/java
2 /usr/lib/jvm/jre-1.5.0-gcj/bin/java

$ /usr/sbin/alternatives --config javac

There is 1 program that provides 'javac'.

Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/java-1.7.0-icedtea.x86_64/bin/javac

Any idea on what is missing? Or are there some more tests I can run to
see how and where the javac resource is getting lost?

---
John

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New Beta Release

2007-12-20T17:50:53Z

Hi everyone:

I just released a new beta version of DrJava. Please take a look at
the new version:

http://sourceforge.net/project/showfiles.php?group_id=44253&package_id=50477&release_id=563171

After the limited discussion we had yesterday, I decided to create a
branch based on revision 4268, the last version before Dan integrated
the new interpreter. Then I merged the last changes I made in revision
4286 into the branch, so the beta has all the bugfixes and features of
the latest version on http://www.cs.rice.edu/~javaplt/drjavarice , but
not the new interpreter.

Please try to stress this new beta version as well as the drjavarice
version with Dan's interpreter. If I don't hear of any major problems,
I will make a new stable release based on the same branch during the
first few days of the new year. In mid-January, we will then make a
new beta release that also includes the interpreter.

I hope you agree with this course of action. I wish you and your
families happy holidays.

--Mathias

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Re: A begginer question

2007-12-18T05:46:55Z

ok i downloaded the 1.6 (Kit 6 Update 3) and it seems to be fine.
Just one last question.
In school when I run the program, when the drjavav need to print to the user something (lets say: println("Enter a number") it's open a window (pop-up) and in the 1.6 it just write it in the interactions (bottom screen), can i change it to the pop-up thing?.. it's more comfortable..
thx,
Guy

Geoffrey Knauth wrote:

The class java.util.Scanner was introduced with JDK 1.5. If you can
install a newer JDK than 1.4.2 on your computer, you should be in
business. You can get one from java.sun.com.

Geoffrey
--
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On Dec 17, 2007, at 15:06, GuyG wrote:

> Hello, I'm really new in the DrJava thing, I'm learning it right now
> in
> school.. lol
> I'm trying to use now drjava at home.
> I downloaded the drjava from : http://drjava.org version:
> drjava-stable-20070828-1759, I got the compiler (JDK 1.4.2_16)
> Now, I've done this newbie program:
> {code}import java.util.Scanner;
> public class Boom7
> {
> public static void main(String[] args)
> {
> Scanner in=new Scanner(System.in);
> int a;
> System.out.println("Enter A Number");
> a=in.nextInt();
> if (a%7==0)
> {System.out.println("Boom");}
> }
> }{code}
>
> but when i try to compile it sais:
>
> {code}3 errors found:
> File: D:\תוכנות\drjava\Boom7.java [line: 1]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: package util
> File: D:\תוכנות\drjava\Boom7.java [line: 6]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: class Boom7
> File: D:\תוכנות\drjava\Boom7.java [line: 6]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: class Boom7{code}
>
> Like it has something with the Scanner,, a problem?..
> please help me what do I need to do..?
> --
> View this message in context: http://www.nabble.com/A-begginer-question-tp14374022p14374022.html
> Sent from the drjava-users mailing list archive at Nabble.com.
>
>
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Re: A begginer question

2007-12-17T14:32:32Z

The class java.util.Scanner was introduced with JDK 1.5. If you can
install a newer JDK than 1.4.2 on your computer, you should be in
business. You can get one from java.sun.com.

Geoffrey
--
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On Dec 17, 2007, at 15:06, GuyG wrote:

> Hello, I'm really new in the DrJava thing, I'm learning it right now
> in
> school.. lol
> I'm trying to use now drjava at home.
> I downloaded the drjava from : http://drjava.org version:
> drjava-stable-20070828-1759, I got the compiler (JDK 1.4.2_16)
> Now, I've done this newbie program:
> {code}import java.util.Scanner;
> public class Boom7
> {
> public static void main(String[] args)
> {
> Scanner in=new Scanner(System.in);
> int a;
> System.out.println("Enter A Number");
> a=in.nextInt();
> if (a%7==0)
> {System.out.println("Boom");}
> }
> }{code}
>
> but when i try to compile it sais:
>
> {code}3 errors found:
> File: D:\תוכנות\drjava\Boom7.java [line: 1]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: package util
> File: D:\תוכנות\drjava\Boom7.java [line: 6]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: class Boom7
> File: D:\תוכנות\drjava\Boom7.java [line: 6]
> Error: cannot resolve symbol
> symbol : class Scanner
> location: class Boom7{code}
>
> Like it has something with the Scanner,, a problem?..
> please help me what do I need to do..?
> --
> View this message in context: http://www.nabble.com/A-begginer-question-tp14374022p14374022.html
> Sent from the drjava-users mailing list archive at Nabble.com.
>
>
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A begginer question

2007-12-17T12:06:54Z

Hello, I'm really new in the DrJava thing, I'm learning it right now in school.. lol
I'm trying to use now drjava at home.
I downloaded the drjava from : http://drjava.org version: drjava-stable-20070828-1759, I got the compiler (JDK 1.4.2_16)
Now, I've done this newbie program:
{code}import java.util.Scanner;
public class Boom7
{
public static void main(String[] args)
{
Scanner in=new Scanner(System.in);
int a;
System.out.println("Enter A Number");
a=in.nextInt();
if (a%7==0)
{System.out.println("Boom");}
}
}{code}

but when i try to compile it sais:

{code}3 errors found:
File: D:\תוכנות\drjava\Boom7.java [line: 1]
Error: cannot resolve symbol
symbol : class Scanner
location: package util
File: D:\תוכנות\drjava\Boom7.java [line: 6]
Error: cannot resolve symbol
symbol : class Scanner
location: class Boom7
File: D:\תוכנות\drjava\Boom7.java [line: 6]
Error: cannot resolve symbol
symbol : class Scanner
location: class Boom7{code}

Like it has something with the Scanner,, a problem?..
please help me what do I need to do..?

drjava.org domain lost, please use http://drjava.sourceforge.net/

2007-08-14T17:10:08Z

Hi!

Unfortunately, we missed the renewal deadline for the drjava.org
domain, which has now been picked up by a domain squatter. We are
trying to reclaim the domain.

In the meantime, please use the following URL:

http://drjava.sourceforge.net/

We apologize for the inconvenience.

Mathias Ricken
Developer, DrJava

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Re: having a problem with Dr Java

2007-04-20T10:09:10Z

Thank u Chris, the problem has been resolved. Since i ve upadated my JRE to the newest version, Dr java can't recognize the tools.jar file. So I just deleted my JRE and setuped an older version, everything seems fine now

Re: having a problem with Dr Java

2007-04-19T19:55:02Z

javaisyourfriend @ 2007-4-18 10:19:41 AM
"[Drjava-users] having a problem with Dr Java" <mid:10060206.post@...>

> thank u for replying, but I have already done this and the problem is still
> there, I downloaded Drjava and ran it, then I go to "edit"> "preferences"
>>"resource location" and locate Tools.jar Location to C:\Program
> Files\Java\jdk1.5.0_04\lib\tools.jar. that's how I set up it, and I
> have already installed JDK 5.0 update 4 on my computer, as well as
> JRE 5.0 update 10. Are there anything wrong with my setup?

Are you running DrJava with JRE 1.5.0_04 as well? The compiler and JRE
need to be the same version.

--
Chris Warrington <chrisw@...>

Today's Oxymoron: Pretty ugly

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attachment0 (190 bytes) Download Attachment

Re: having a problem with Dr Java

2007-04-18T09:19:41Z

thank u for replying, but I have already done this and the problem is still there, I downloaded Drjava and ran it, then I go to "edit"> "preferences" >"resource location" and locate Tools.jar Location to C:\Program Files\Java\jdk1.5.0_04\lib\tools.jar.
that's how I set up it, and I have already installed JDK 5.0 update 4 on my computer, as well as JRE 5.0 update 10. Are there anything wrong with my setup?

Re: having a problem with Dr Java

2007-04-17T23:00:14Z

javaisyourfriend @ 2007-4-17 8:33:41 PM
"[Drjava-users] having a problem with Dr Java" <mid:10050809.post@...>

> Hi everybody, I m new to Java. I v just installed Dr Java on my
> computer, but i have problem compiling my files, everytime when i
> compile, it returns an error says:
> 1 error found:
> File: (no associated file) [line: (no source location)]
> Error: java.lang.NoSuchMethodError:
> com.sun.tools.javac.util.Options.put(Ljava/lang/String;Ljava/lang/String;)V

We have seen this error with users who have installed JDK 6.0. Setting
the tools.jar path should solve this problem.

Select "Edit -> Preferences..." and click on the "..." to the right of
the "tool.jar" field. This will display a file selection dialog.

Now that the selection dialog is open, navigate through your file
system and select your "tools.jar". On Windows, it can often be found
in "C:\Program Files\Java\<jdk version>\lib\tools.jar". If you cannot
find it here, search for "tools.jar" across all your hard drives. On
Linux\Unix and Mac OS X, typing "locate tools.jar" at a command line
can help you locate it.

--
Chris Warrington <chrisw@...>

In an office: WOULD THE PERSON WHO TOOK THE STEP LADDER YESTERDAY
PLEASE BRING IT BACK OR FURTHER STEPS WILL BE TAKEN

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having a problem with Dr Java

2007-04-17T19:33:41Z

Hi everybody, I m new to Java. I v just installed Dr Java on my computer, but i have problem compiling my files, everytime when i compile, it returns an error says:
1 error found:
File: (no associated file) [line: (no source location)]
Error: java.lang.NoSuchMethodError: com.sun.tools.javac.util.Options.put(Ljava/lang/String;Ljava/lang/String;)V

can anyone help me?

Re: Interactions Pane Question...

2007-03-17T19:34:28Z

I think its useful in the interpreter context to be able to redefine
methods on the fly. That way a student can try one definition for a
function, find problems, redefine it to correct the problems, etc.

Most every other interpreted language I've ever used (Scheme, Lisp,
Python) allow function redefinition.

--brendan

On 3/17/07, R. Matt Barnett <rmbarnett@...> wrote:

> I would think the second definition would be disallowed due to matching
> signatures at the time it was interpreted. Why wait for invocation?
>
> -- Matt
>
>
> On 3/17/07, Brendan Burns <brendan.d.burns@...> wrote:
> >
> > Hey Folks,
> > I was playing with DrJava and I ran into a feature?/bug? which has me
> confused:
> >
> > in the interactions pane:
> > Welcome to DrJava. Working directory is /home/bburns
> > > int plus(int a, int b) { return a + b; }
> > > plus(1,2)
> > 3
> > > int plus(int a, int b) { return a-b; }
> > > plus(1,2)
> > AmbiguousFunctionException: Both functions match:
> > (koala.dynamicjava.tree.MethodDeclaration:
> > ....
> >
> > In every other interpreter I've ever played around with, the second
> > definition of the plus function would overwrite the old definition.
> > So my question is: what is going on? Is it intentional? Is there some
> > sort of weird namespace that I'm unaware of?
> >
> > Thanks
> > --brendan burns
> >
> >
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Re: Interactions Pane Question...

2007-03-17T12:35:21Z

I would think the second definition would be disallowed due to matching signatures at the time it was interpreted. Why wait for invocation?

-- Matt

On 3/17/07, Brendan Burns <brendan.d.burns@...> wrote:

Hey Folks,
I was playing with DrJava and I ran into a feature?/bug? which has me confused:

in the interactions pane:
Welcome to DrJava. Working directory is /home/bburns
> int plus(int a, int b) { return a + b; }
> plus(1,2)
3
> int plus(int a, int b) { return a-b; }
> plus(1,2)
AmbiguousFunctionException: Both functions match:
(koala.dynamicjava.tree.MethodDeclaration:
....

In every other interpreter I've ever played around with, the second
definition of the plus function would overwrite the old definition.
So my question is: what is going on? Is it intentional? Is there some
sort of weird namespace that I'm unaware of?

Thanks
--brendan burns

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Interactions Pane Question...

2007-03-17T12:21:34Z

Hey Folks,
I was playing with DrJava and I ran into a feature?/bug? which has me confused:

in the interactions pane:
Welcome to DrJava. Working directory is /home/bburns
> int plus(int a, int b) { return a + b; }
> plus(1,2)
3
> int plus(int a, int b) { return a-b; }
> plus(1,2)
AmbiguousFunctionException: Both functions match:
(koala.dynamicjava.tree.MethodDeclaration:
....

In every other interpreter I've ever played around with, the second
definition of the plus function would overwrite the old definition.
So my question is: what is going on? Is it intentional? Is there some
sort of weird namespace that I'm unaware of?

Thanks
--brendan burns

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Re: Question about Junit

2007-02-14T11:04:45Z

Put the junit.jar anywhere you like. Then, in DrJava, use:
Edit -> Preferences -> Extra Classpath -> Add button
to add the path to the junit.jar file to the classpath.

Geoffrey
--
Geoffrey S. Knauth | http://knauth.org/gsk

On Feb 14, 2007, at 13:57, Dave McPherson wrote:

> Hi,
>
> I have student who is using DrJava and when he creates a Junit test
> case, the compiler can't find the framework. If he downloads the
> Junit
> jar from them, where should he put it on his computer or how does he
> tell DrJava where it is located?
>
> Thanks,
> Dave McPherson
> --
> Dave McPherson Computer Science
> Instructor Virginia Tech
> dmcphers@... 625 McBryde Hall
> 231-4485
> http://www.active.com/donate/tntva/tntvavtdave

Question about Junit

2007-02-14T10:57:45Z

Hi,

I have student who is using DrJava and when he creates a Junit test
case, the compiler can't find the framework. If he downloads the Junit
jar from them, where should he put it on his computer or how does he
tell DrJava where it is located?

Thanks,
Dave McPherson
--
Dave McPherson Computer Science
Instructor Virginia Tech
dmcphers@... 625 McBryde Hall
231-4485
http://www.active.com/donate/tntva/tntvavtdave

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Re: command line arguments

2007-02-08T17:26:01Z

Consider:

public class Foo
{
public static void main(String[] args)
{
System.out.println("arg 0 = " + args[0]);
}
}

From the interactions pane:

Welcome to DrJava. Working directory is C:\Documents and Settings\Matt.FT8D\Desktop
> java Foo "Bar"
arg 0 = Bar
>

Hope that helps,
Matt

On 2/8/07, Steve Shum <shum@...> wrote:

Hi,

How do I enter command line arguments using DrJava?

Thanks.

steve

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command line arguments

2007-02-08T17:10:23Z

Hi,

How do I enter command line arguments using DrJava?

Thanks.

steve

New DrJava stable release available

2007-01-31T05:39:02Z

A new DrJava stable release has been posted. Go to <http://
drjava.org> for details.

—Dan

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Re: Interactions without DrJava

2007-01-25T10:24:49Z

Hi--
I know that at one point (many years ago), it was possible to launch
the DrJava Interactions pane on its own like this:

java -cp drjava.jar edu.rice.cs.drjava.ui.SimpleInteractionsWindow

The interactions pane has changed a bit since then, though, so I
don't know if that still works. Perhaps the developers can test it out
(and maybe improve the interface a bit), if it's a useful tool for people.

Hope that helps,
Charlie

Eddie Hillenbrand wrote:

> Hi,
>
> My name is Eddie Hillenbrand, I'm a student at Northern Arizona
> University. I have been looking for an interactive Java interpreter.
> My search lead me to DynamicJava, but it didn't behave like other
> interactive interpreters I've used in the past, namely Python and irb
> (interactive Ruby).
>
> Then I found DrJava. The Interactions pane behaves just the way I
> want. So I got a hold of the DrJava source code. Then I compiled
> DynamicJava, but when I ran the jar it was the same as standard
> DynamicJava. My question is, how do I get DynamicJava to behave like
> it does in DrJava?
>
> Thanks in advance,
>
> Eddie
>
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Interactions without DrJava

2007-01-25T10:08:02Z

Hi,

My name is Eddie Hillenbrand, I'm a student at Northern Arizona
University. I have been looking for an interactive Java interpreter.
My search lead me to DynamicJava, but it didn't behave like other
interactive interpreters I've used in the past, namely Python and irb
(interactive Ruby).

Then I found DrJava. The Interactions pane behaves just the way I
want. So I got a hold of the DrJava source code. Then I compiled
DynamicJava, but when I ran the jar it was the same as standard
DynamicJava. My question is, how do I get DynamicJava to behave like
it does in DrJava?

Thanks in advance,

Eddie

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New DrJava Plug-in for Eclipse Released

2006-10-30T14:49:55Z

A build of the DrJava Eclipse Plug-in has been posted, and is
available on the main DrJava site. The Eclipse Plug-in includes an
Interactions Pane and a DrJava "Perspective."

<http://drjava.org>

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Re: [JAVAPLT] Re: New DrJava stable release available

2006-10-25T11:42:53Z

A third update has now been released. This also addresses a handful
of bugs.

—Dan Smith

On Sep 18, 2006, at 1:40 PM, Daniel Smith wrote:

> A second update has been posted, with additional bug fixes.
>
> —Dan
>
>
>
> On Aug 21, 2006, at 11:37 AM, Daniel Smith wrote:
>
>> An update to this release has now been posted, containing a few
>> bug fixes.
>>
>> <http://drjava.org> is back up and running.
>>
>> —Dan Smith
>>
>>
>> On Aug 15, 2006, at 11:07 AM, Daniel Smith wrote:
>>
>>> A new version of DrJava with major improvements developed since
>>> January has been released. See <http://drjava.sourceforge.net>
>>> for details. (Note that the drjava.org site is temporarily
>>> unavailable, but will be back online soon.)
>>>
>>> —Dan Smith
>>>
>>

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JUnit problems?

2006-10-02T11:53:29Z

I'm running DrJava version 20060918-1737 with Sun's JDK version 1.5.0_08 on a Windows XP system. I've used JUnit test cases before without problems, but not since last spring.

Currently, I can't get any of my test cases to compile. If I create a brand new JUnit Test Case using the "New JUnit Test Case" command on the File Menu, and then try to compile it, I get the error:

Error: package junit.framework does not exist

If I go to www.junit.org and download junit-4.1.jar and add it to my classpath, then I can compile test cases just fine. But I'm sure that that didn't used to be necessary – that the required libraries were included in DrJava. Did something change? Am I doing something wrong?

Any help would be appreciated.

Andrew Merrill

Computer Science Teacher

Catlin Gabel School, Portland, Oregon

merrilla@...

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