Why am I getting a NullPointerException when I try to run my program?
Java FAQMost likely you tried to call a method on an object variable before initializing it. Remember, in Java all object variables are explicit heap-dynamic reference variables. As such, all object variables are null until you explicitly create and assign an object to them. Note, this is different from C++ where object variables are stack-dynamic by default. Consider the following Java code: MyObject x; // x=null! x.myMethod(); // will result in a NullPointerException because x is null! ..
Related QuestionsWhen I try to run the program I get a List index Out Of Bounds error, what's wrong?
SimEnhancer FAQ'sThis is because SimEnhancer can't locate or can't access the Directory where your game is. If you are running a user account on Windows 2000 you can either log in as an Administrator or try installing SimEnhancer to the default directory. (C:\Program Files\SimEnhancer)
Related QuestionsWhy does the program install when I try to run it?
Sokoban Frequently Asked QuestionsYou have by mistake created a shortcut to the installation file (Soko15.exe). Change the path of the shortcut by right-clicking it. Select properties, and change the path to the one you selected during setup, typically C:\Program Files\Sokoban\Sokoban.exe. You can delete the Soko15.exe file after you have successfully installed Sokoban.
Related QuestionsWhat is a NullPointerException in Java? Q: What is System.out?
Code Style: Java API frequently asked questions (FAQ)Normally when we compare two objects we use the fundamental equals(Object) method. Conceptually, the equals method "belongs" to the objects you are comparing and returns a boolean to indicate whether they are passed a reference to themselves. Its not obvious why you would choose to make that comparison in the constructor of another class, which may only return a reference to the new instance, not a simple boolean response.
Related QuestionsWhy am I getting an "Internal Server Error" when I try to run my CGI or PHP script?
Alien Web HostingFirst, check the end of your error_log file which is present in your logs/ directory. If it shows a "Premature end of script headers" message for your CGI script, make sure that you have uploaded the script in ASCII mode from your FTP transfer program, and that if it is a perl script, the first line reads "#!/usr/bin/perl".
Related QuestionsWhy do I keep getting asked to logon to the "APS face" when I try to run a report in ART?
FAQ Manager Pro 3.0This is a relatively infrequent occurance that can occur when accessing ART via a Firefox or Mozilla browser. It appears to be related to the caching features of the browser itself, ...... This is caused by the security settings that you have set in Internet Explorer. From the Internet Options menu on the Tools menu, you can add https://www.fin.ucar.edu as a Trusted Site .....
Related QuestionsI am over 40 and have never run before. Can I still try the run walk program?
Gracie's Gear And Training | Frequently Asked QuestionsAbsolutely! This run walk progression is slow and safe. Consult your physician before trying it if you have any medical issues.
Related QuestionsDo you know of anything I might try for tearstain. I'm getting desperate?
Maltese tear, eye & face stain - Frequently Asked Questions ...One method (without bleaching) you might want to try would be to mix concentrated Magic Touch #1 and hydrogen peroxide (2% or 3% from the pharmacy--not the beauty shop variety) equal parts. Only mix enough for a week at a time so the peroxide doesn't lose its potency.(mix 1/8 cup Magic Touch, 1/8 cup peroxide). Apply it once or twice a day to the stained area with a cotton ball after combing out the hair.
Related Questionsaborting.... when I try to run Ethereal on Windows?
Ethereal: Frequently Asked QuestionsEthereal is built using the GTK+ toolkit, which supports most UNIX-flavored OSes, and also supports Windows. Windows versions of Ethereal before 0.9.14 were built with an older version of that toolkit, which didn't support 256-color mode on Windows - it required HiColor (16-bit colors) or more. Windows versions of Ethereal 0.9.
Related QuestionsI am getting a ???Program Closed: RedFive Timeout 0??? message when I try to run my application?
www.redfivelabs.comIf you are seeing this message box it means that you are using an old version of our beta release. Please either get the latest beta or purchase our product.
Related QuestionsWhen I try to run your theme it asks me which type of program I want to open it with?
Crimperman.org - FAQsTo use desktop themes you need a special program that is supplied with the "Windows95 Plus!" pack or Windows98. There are shareware alternatives available.
Related QuestionsWhen I try to install/run the program an error message appears saying "something.dll" not found?
DioneSS] - Frequently Asked QuestionsThe installer is provided to correctly set up and configure your software and our current titles rely on MS Visual Basic runtimes to work,click the link below to obtain and install these files.Download the VB6 sp5 Runtime Libraries [Microsoft, HTTP, 0.99Mbytes]
Related QuestionsWhen I try to run the program, it gives ......error message. How do I set it right?
Frequently asked Questions about AKGBackupAfter having extensively tested the program myself I was almost sure that it had become a bug-free program. Presently, there are hundreds of users who are running this program on a regular basis. I have received a few error messages from the users of this program but none of the errors were due to any bug in the program. Most of the errors get resolved simply by re-installing the program. A small number of errors relate to the system on which the program is running.
Related QuestionsWhy do I get a syntax error whenever I try to run an assembly program?
The Ultimate TI Calculator FAQ - TI-83 and TI-84 (regular, P...Most likely, you have tried to run it as you would a basic program, which is not the right way to do so. Refer to the beginning of this document for the correct way to run the program.
Related QuestionsWhen is hashCode() used? Q: What is a NullPointerException in Java?
Code Style: Java API frequently asked questions (FAQ)A NullPointerException is a runtime exception that indicates the Java Virtual Machine attempted to call a method on an object, but the object reference was null. This case may occur when a reference is assigned from another method call that may return a null value, such as a Hashtable look-up.
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InterProlog FAQPerhaps because InterProlog assumes that its own Prolog files are in a jar file, and is unable to read them. You need to use an extra javaMessage to obtain a full object specification; say your InvisibleObject is X and you want a specification for the referred object in S : ipPrologEngine(E), javaMessage(E,S,getRealJavaObject(X))
Related QuestionsWhen I try to log in, I'm getting error messages. What do they mean?
Online Learning FAQsquot;Could not login. The specified user name does not exist in the system." - This means that your Blackboard account has yet to be created. Often this is because you just enrolled in a class, and the process for creating your Blackboard account hasn't been completed, or you are enrolled in a class that is not using Blackboard. quot;Could not login.
Related QuestionsQ 2.1: Why do I get an error when I try to run the Win32 installer?
Wireshark: Frequently Asked QuestionsThe program you used to download it may have downloaded it incorrectly. Web browsers and download accelerators sometimes may do this. Wget, for which Windows binaries are available from Christopher Lewis or wGetGUI, which offers a GUI interface that uses wget; the ftp command that comes with Windows. If you use the ftp command, make sure you do the transfer in binary mode rather than ASCII mode, by using the binary command before transferring the file.
Related QuestionsWhy does D2_3DFX give me a garbage message and quit when I try to run it?
The Official D2_3DFX FAQ - Frequently Asked QuestionsYou may not have enough memory (either conventional or extended) to run the program. Free up some memory and try again. NOTE: To the best of my knowledge, the garbage messages were only present in old versions of D2_3DFX. v1.02b and up display these error messages correctly.
Related QuestionsHow do I download and run the program on my computer?
Internet Junkbuster Frequently Asked QuestionsIt depends on your platform. If you are using Windows 95/98/NT/XP/ME/2000, see our separate page on installing under Windows. If you have a C compiler and are using almost any flavor of UNIX ® you download it, compile it, start it running, and then configure your browser. Several precompiled packages are also available through links in our distribution page, which lists all available platforms.
Related QuestionsWill the program run on monitors less than 1024x768?
YSI - Frequently Asked QuestionsVersion 1.0.4 of the software supports rudimentary scaling of the interface to whatever size your monitor is set to. The graphics and interface elements may become hard to read at smaller sizes. Once you have finished your layout, open the Finished Layouts screen and select the layout. Add this template into the Batch Output Box and select Run Batch. A pop-up screen will appear showing the current layout name, output size and the High Rez. file type.
Related QuestionsI would like to run the program on another computer, can I do this?
YSI - Frequently Asked QuestionsYes you can run the program on other computers that you personally own. As long as they are PC to PC or Mac to Mac. You will require permission and instructions from our office to do this, please forward your request to support@youselectit.com with your current Un-Lock Code and registration details.
Related QuestionsWhat other things did you try before going on this program?
Candida: Frequently Asked QuestionsA lot of you ask if I ever took Nystatin and Diflucan and stuff like that. No, I did not. Not because I wasn't willing but because I had the misfortune of getting doctor after doctor after doctor who did not believe in candida in the first place. I did try Lamisil, which is an antifungal, but I was part way through my prescription when I saw Dr. Piller and he told me to throw it away. So I never continued with it.
Related QuestionsWhy should I try this program?
Untitled PageYou will lose the weight you want to if your determined, willing to listen and follow the program and learn from your Client Manual all about your body, how it works, what's best for you and what is not. Your program is designed only for you and you can use it anytime for the rest of your life and it will work. The basic reason that you will be successful is your commitment combined with our program designed for you.
Related QuestionsWhen should I give this program a try?
agTravelList - Travel Preparations with Checklists - FAQ'sIn addition you are encouraged to "misuse" agTravelList by creating lists for shopping, sports, school, ...
Related QuestionsWhen I try to run your program, I get an 'Internal Server Error'. What does that mean?
nms - web programs written by expertsThis (rather useless) error message generally means that your webserver tried to execute the program, but execution failed. This is most likely to be caused by the Perl program not being valid Perl. Perl tries to run your program, finds an error, and throws up warnings. The webserver interprets these warnings as output from the CGI which it can't understand, and throws out an Internal Server Error.
Related QuestionsWhen I try to run a program's Help screen, WinU closes the Help window. How do I fix this?
Bardon Data Systems: WinU FAQYou have probably set up this desk to not allow non-button programs to run. To allow all helpfiles, list winhelp.exe (the Windows help program) as an Allowed Application by filename, so WinU allows it to run. To allow just certain helpfiles to run, use the Access tab's lenient setting instead of strict, and list the window titles of the allowed helpfiles instead of the filename of the help program itself.
Related QuestionsQ7. When I try to run one of the programs, I keep getting "Error 10 Data Type". How do I fix this?
Math 13 - TI-86 FAQYou probably stored a picture or graph data base to a variable name that conflicts with a variable name used by the program. Here's how to fix it (ask your instructor if you need help with this). Go to the memory management screen [2nd MEM], select "DELET" "ALL", scroll down the list of variables and see if you have one that says GDB (graph data base) or PIC (picture).
Related QuestionsI am getting a WSAENOBUFS error when I try to make a connection. What do I do?
Pi-Soft Consulting - SpoonProxy FAQTo get rid of the WSAENOBUFS error, try to reduce the number of mapped ports (especially TCP). If that doesn't help, add the following value using RegEdit: For Win95 with Winsock 1.1, add it as a DWORD. Change the value to something larger than 100 decimal (64 hexadecimal). For Win98 or Win95 with Winsock 2, add it as a string. Change the value to something larger than 100. For WinNT, it depends on the amount of non-paged memory you have available.
Related QuestionsCan I try diving without getting certified?
Jack's Diving Locker:FAQ for newbiesYes, you can! You have two options with our Introduction to SCUBA program. You can opt for a one-tank experience (one dive) off the shore or a two-tank (two dives) off the boat experience. Both include a short classroom session during which you are introduced to the equipment and basic rules of diving. You'll practice several essential skills in the water. Then you are taken on a guided shallow dive, closely supervised by your instructor.
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