[DrJava] [ drjava-Bugs-1938268 ] while running a program I got this error.

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Bugs item #1938268, was opened at 2008-04-08 18:18
Message generated for change (Tracker Item Submitted) made by Item Submitter
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=1938268&group_id=44253

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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: while running a program I got this error.

Initial Comment:
got an error when I ran this code.

//code starts here **********************

import java.util.Scanner;

public class JunkFromClass
{
  public static void main(String [] args)
  {

   String city = "";
   int temp = 0;
   Scanner in = new Scanner(System.in);
   System.out.print("Enter City Name or type none to quite: ");     
   city = in.nextLine();
   city = in.nextLine();
   while (!city.equalsIgnoreCase("none"))
   {
     temp = in.nextInt();
     if (temp>=90)
     {
       System.out.print("It's Hot!");
     }
     else if (temp>=80)
     {
       System.out.print("It's Warm");
     }
     else if (temp >= 70)
     {
       System.out.print("It's Nice");
     }
     else if (temp >= 60)
     {
       System.out.print("It's Chilly");
     }
     else
     {
    System.out.print("It's Damn Cold");
     }
     System.out.print("Enter City Name");
     city = in.nextLine();
     }

  }
}

//code ends here********************** 

java.lang.NullPointerException
	at edu.rice.cs.drjava.ui.MainFrame$ModelListener.interactionEnded(MainFrame.java:7453)
	at edu.rice.cs.drjava.model.GlobalEventNotifier.interactionEnded(GlobalEventNotifier.java:331)
	at edu.rice.cs.drjava.model.repl.InteractionsEventNotifier.interactionEnded(InteractionsEventNotifier.java:75)
	at edu.rice.cs.drjava.model.repl.DefaultInteractionsModel$3.run(DefaultInteractionsModel.java:136)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

System Properties:
DrJava Version 20080112-0033
drjava.debug.port = 49714
java.runtime.name = Java(TM) SE Runtime Environment
sun.boot.library.path = C:\Program Files\Java\jre1.6.0_05\bin
java.vm.version = 10.0-b19
java.vm.vendor = Sun Microsystems Inc.
java.vendor.url = http://java.sun.com/
path.separator = ;
java.vm.name = Java HotSpot(TM) Client VM
file.encoding.pkg = sun.io
sun.java.launcher = SUN_STANDARD
user.country = US
sun.os.patch.level = 
java.vm.specification.name = Java Virtual Machine Specification
user.dir = <anonymized user.dir>
java.runtime.version = 1.6.0_05-b13
java.awt.graphicsenv = sun.awt.Win32GraphicsEnvironment
java.endorsed.dirs = C:\Program Files\Java\jre1.6.0_05\lib\endorsed
os.arch = x86
java.io.tmpdir = <anonymized user.home>\AppData\Local\Temp\
line.separator = "\u000d\u000a"
java.vm.specification.vendor = Sun Microsystems Inc.
user.variant = 
os.name = Windows Vista
sun.jnu.encoding = Cp1252
java.library.path = C:\Program Files\Java\jre1.6.0_05\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\DLLShared\;C:\Program Files\Common Files\Roxio Shared\9.0\DLLShared\;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\QuickTime\QTSystem\
java.specification.name = Java Platform API Specification
java.class.version = 50.0
sun.management.compiler = HotSpot Client Compiler
os.version = 6.0
user.home = <anonymized user.home>
user.timezone = America/New_York
java.awt.printerjob = sun.awt.windows.WPrinterJob
file.encoding = Cp1252
java.specification.version = 1.6
java.class.path = <anonymized user.dir>\drjavajar.jar
user.name = <anonymized user.name>
java.vm.specification.version = 1.0
java.home = C:\Program Files\Java\jre1.6.0_05
sun.arch.data.model = 32
user.language = en
java.specification.vendor = Sun Microsystems Inc.
awt.toolkit = sun.awt.windows.WToolkit
java.vm.info = mixed mode, sharing
java.version = 1.6.0_05
java.ext.dirs = C:\Program Files\Java\jre1.6.0_05\lib\ext;C:\Windows\Sun\Java\lib\ext
sun.boot.class.path = C:\Program Files\Java\jre1.6.0_05\lib\resources.jar;C:\Program Files\Java\jre1.6.0_05\lib\rt.jar;C:\Program Files\Java\jre1.6.0_05\lib\sunrsasign.jar;C:\Program Files\Java\jre1.6.0_05\lib\jsse.jar;C:\Program Files\Java\jre1.6.0_05\lib\jce.jar;C:\Program Files\Java\jre1.6.0_05\lib\charsets.jar;C:\Program Files\Java\jre1.6.0_05\classes
java.vendor = Sun Microsystems Inc.
file.separator = \
java.vendor.url.bug = http://java.sun.com/cgi-bin/bugreport.cgi
sun.io.unicode.encoding = UnicodeLittle
sun.cpu.endian = little
java.rmi.server.hostname = 127.0.0.1
sun.desktop = windows
sun.awt.exception.handler = edu.rice.cs.drjava.ui.DrJavaErrorHandler
sun.cpu.isalist = pentium_pro+mmx pentium_pro pentium+mmx pentium i486 i386 i86

#DrJava configuration file
#Tue Apr 08 21:18:06 EDT 2008
lineenum.enabled = true
key.delete.next = shift DELETE
key.delete.previous = shift BACK_SPACE
interactions.exit.prompt = false
save.before.compile = true
recent.files = [C:\\java work\\junk\\JunkFromClass.java,C:\\java work\\old stuff\\FaceViewer.java,C:\\java work\\old stuff\\FaceComponent.java,C:\\java work\\Programming 1 class Java homework\\Grade\\GradeTester.java,C:\\java work\\Programming 1 class Java homework\\Grade\\Grade.java]
window.height = 816
window.width = 1296
window.x = -8
window.y = -8
last.dir = C:\\java work\\junk\\JunkFromClass.java
last.interactions.dir = C:\\java work\\junk
dialog.jaroptions.state = 445 265

Used memory: about 17.09 megabytes
Free memory: about 5.47 megabytes
Total memory: about 22.59 megabytes
Total memory can expand to: about 63.56 megabytes

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=438935&aid=1938268&group_id=44253

[DrJava] [ drjava-Bugs-1938268 ] while running a program I got this error.

A lightweight programming environment for Java

[DrJava] [ drjava-Bugs-1938268 ] while running a program I got this error.