My javac doesent work

when I write to "cmd" javac I get this message: 'javac' is not recognized as an internal or external command,
operable program or batch file.
when I check my java versio it says: 'javac' is not recognized as an internal or external command,
operable program or batch file.
where is problems

This will probably help:
http://java.sun.com/docs/books/tutorial/getStarted/cupojava/win32.html
Also read this:
http://forum.java.sun.com/thread.jsp?forum=31&thread=362421
One of the characteristics of a good programmer is the ability to solve problems by examining available material - you can start to develop this by looking at the answers to previous questions in a similar vein (hint: forum search).

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After System restore from Time Capsule Mail doesent work

HI
i resored my Time capsule backup on my mac because of the need for space to install windows on my mac (Boot camp doesent works!) i can use all my programms and data well exept Mail when i start mail it Flashes:
You can’t use this version of Mail with this version of Mac OS X
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But its just a 1to1 backup.....
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Blinkyrus wrote:
i restored my Time capsule backup on my mac because of the need for space to install windows on my mac (Boot camp doesent works!) i can use all my programms and data well exept Mail when i start mail it Flashes:
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(help button is online help....)
The first thing I'd try is to download and install the Mac OS X 10.6.1 updater:
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Can't get javac to work???

I can't get the javac to work, and i set the path to c:\jsdk\bin%PATH% and then i try the java -version and it says it failed, then the javac says bad command, so it's not seeing it. what gives??

Hi Ricky,
try this, in your autoexec.bat file:
SET PATH=C:\JDK1.3.0_02\BIN
of course change JDK1.3.0_02 by the folder where you have the java SDK.
other paths should be separated with semicolon in the same statement
re init your machine
good luck
PD:are you writing java -version in the DOS promt?
are you writing javac yourfile.java in the folder where yourfile is? Be care,Case matters!

FOR ALL ENTRIES IN comando doesent work !!!

Dear all,
I have here a problem with my select. I dont know why it doesent work. In the table gt_struc1 I have 2 entries.
This entries are also in BSAD availible.
belnr
bukrs
gjahr
are the same in gt_struc1 and in BSAD
TYPES: BEGIN OF ts_struc1,
               bukrs        TYPE bukrs,
               gjahr        TYPE gjahr,
               belnr        TYPE belnr_d,
               prctr        TYPE prctr,
       END OF ts_struc1.
DATA: gt_struc1    TYPE TABLE OF ts_struc1,
            lt_tabelle      TYPE REF TO data.
*       BSAD
        CREATE DATA lt_tabelle TYPE STANDARD TABLE OF BSAD.
        ASSIGN lt_tabelle->* TO <ft_itab>.
*       Get data from DB
        SELECT * FROM bsad INTO TABLE <ft_itab>
        FOR ALL ENTRIES IN gt_struc1
          WHERE belnr EQ gt_struc1-belnr AND
                bukrs EQ gt_struc1-bukrs AND
                gjahr EQ gt_struc1-gjahr.

The gt_struc1is correct see blow:
* Über alle Datensätze
LOOP AT lt_content
ASSIGNING <fs_current_set>.
*   Ab welche Zeile
    CHECK sy-tabix >= pa_zeile.
*   Spliten der Daten
    SPLIT <fs_current_set> AT ';' INTO ls_struc1-bukrs
                                       ls_struc1-gjahr
                                       ls_struc1-belnr.
*   Siehe Selektionskriterien
    CHECK ls_struc1-bukrs IN pa_bukrs[].
    CHECK ls_struc1-gjahr IN pa_gjahr[].
    CHECK ls_struc1-belnr IN pa_belnr[].
    CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
      EXPORTING
        input = ls_struc1-belnr
      IMPORTING
        output = ls_struc1-belnr.
    APPEND ls_struc1 TO gt_struc1.
ENDLOOP.
Edited by: handeglo on Feb 26, 2010 10:29 AM

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Is the Windows 8.1 system you posted from the one with the problem, or is the problem on a different system? In that case, I assume it's also Windows.
Does Internet Explorer work normally or are all browsers affected?
Did this problem start shortly after any software changes, such as:
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One month free doesent work

i have applied for the one month free but it doesent work i cant make calls abroad. but it says that the order is deliverd.

Hi,
Your subscription has been activated.
It includes calls to following destinations only:
Argentina
Australia
Austria
Belgium
Canada - (incl. mobiles)
Chile
Croatia
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Guam
Hong Kong SAR - (incl. mobiles)
Hungary
Ireland, Republic of
Israel
Italy
Japan
Korea
Luxembourg
Malaysia
Netherlands
New Zealand
Norway
Poland
Portugal
Puerto Rico
Russia - St Petersburg
Russia - Moscow
Singapore - (incl. mobiles)
Slovakia
Spain
Sweden
Switzerland
Taiwan
Thailand - (incl. mobiles)
United Kingdom
United States - (incl. mobiles)
Venezuela
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Thank You!
Please send private messages only upon request.

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hi Ashley!
I click to open itunes, and it either doesnt do anything at all or once in a while i get a message saying itunes had an error and needed to close.
oh yuck ... it's fairly rare, but i associate the usually itunes sits there doing nothing, but sometimes i get the 'itunes has encountered an error' message when i try to launch it behavior with a viral infection on the PC. (sometimes people also see a mysterious message about their DrWatson too.)
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I'm new to Java and can't get javac command working

Ok first of all hello ( i'm new to the forum ), second i'm reading a book about Java and im trying to compile a sample code from the book, but javac command gained life and it's against me. So the book i'm reading is Sams Teach Yourself Java in 21 Days (YAY), and the code i want to compile is an application that works with another bit of code that mimics what a robot could do inside a volcano. So the Volcano program code is the following ( i'll post the robot code at the end of the post):
1: class VolcanoApp {
2: public static void main(String[] arguments) {
3: VolcanoRobot dante = new VolcanoRobot();
4: dante.status = ?exploring?;
5: dante.speed = 2;
6: dante.temperature = 510;
7:
8: dante.showAttributes();
9: System.out.println(?Increasing speed to 3.?);
10: dante.speed = 3;
11: dante.showAttributes();
12: System.out.println(?Changing temperature to 670.?);
13: dante.temperature = 670;
14: dante.showAttributes();
15: System.out.println(?Checking the temperature.?);
16: dante.checkTemperature();
17: dante.showAttributes();
18: }
19: }
Ignore the numbers they are used for explaining stuff in the book, and i din't copy the indentation.
So what i do is that i creat a file with notepad ( no fancy stuff only plain old notepad ) and i copy this code, remove the numbers and make the indents.
After that i save as .txt file with the apropriate name ( i know it's case sensitive ). After that i open command prompt and write:
javac VolcanoApp.java
And it tells me that "javac is not recognized as an internal or external command operable program or batch file".
I managed to solve that by going to the control panel and by adding to the system variables for my user in the path variable this :
;C:\JAVAJDK\bin
( C:\JAVAJDK is where JDK is installed)
And then i modified the system variables like this:
In the CLASSPATH i entered this .;%JAVA_HOME%\lib\tools.jar
In JAVA_HOME i entered this C:\JAVAJDK
Setting the variables like this made the javac error go away but now when i write in command line
javac VolcanoApp.java
It gives me this error
javac: file not found : VolcanoApp.java
Usage: javac options source files
use -help for a list of possible options
And then i read that i can drop my java file directly in the javac file. So i did.
When i drop my VolcanoApp.java in the javac file it open a command line window and writes a bunch of stuff in like a milisecond and shuts down. And no file is created.
I wanted to know what was writen in that window so i did it again and took a print screen and pasted it on paint ( it writed so much text that i only got a little bit but enough to see what hapend)
I read it and in the print screen it said it had 15 errors ( so far ) and then it point the errors with little arrows and there were characters that weren't present in the original code.
What hapend the compiler added wierd letters?
SO, my real question is, how the heck do i get javac working and compiling stuff properly?
Plz help i'm getting mad at this! ; (
And the code for the "robot":
1: class VolcanoRobot {
2: String status;
3: int speed;
4: float temperature;
5:
6: void checkTemperature() {
7: if (temperature > 660) {
8: status = ?returning home?;
9: speed = 5;
10: }
11: }
12:
13: void showAttributes() {
14: System.out.println(?Status: ? + status);
15: System.out.println(?Speed: ? + speed);
16: System.out.println(?Temperature: ? + temperature);
17: }
18: }
Again no indents and ignore the numbers. In the book it only said to compile the VolcanoApp.java , and not the VolcanoRobot.java
Edit:
I'm using Windows Vista Home Premium 32 bit.
Edited by: BBlop on Dec 13, 2009 11:29 AM

guess what it says java file. So yes i'm sure. Sarcasm. Not the best way to encourage a total stranger to help you. Then there's
Sorry if i wasn't more clear but was that response needed?No it wasn't needed, but I'm not the one asking for help so I have the luxury of not worrying too much about it. It's extremely frustrating trying to drag relevant information out of someone, and makes one less inclined to bother.
Anyways, there's still nothing in this thread that actually explicitly says "there is a file called VolcanoApp.java in the directory where I'm running javac from" and I really can't be bothered banging my head against the wall any longer. You've made a silly mistake, or a false assumption. We all do it from time to time. My advice is, take a break, go for a walk and re-visit this in a while. You'll probably spot the mistake right away.

Cd c:\java gives me different output and javac doesnt work

Dear friends;
once I type cd c:\java it gives me different output and after that javac doesn't work
Like
javac filename.java
doesnt compile.
Any comments, please.
C:\Program Files>java
Usage: java [-options] class [args...]
(to execute a class)
or java [-options] -jar jarfile [args...]
(to execute a jar file)
where options include:
-client to select the "client" VM
-server to select the "server" VM
-hotspot is a synonym for the "client" VM [deprecated]
The default VM is client.
-cp <class search path of directories and zip/jar files>
-classpath <class search path of directories and zip/jar files>
A ; separated list of directories, JAR archives,
and ZIP archives to search for class files.
-D<name>=<value>
set a system property
-verbose[:class|gc|jni]
enable verbose output
-version print product version and exit
-showversion print product version and continue
-? -help print this help message
-X print help on non-standard options
-ea[:<packagename>...|:<classname>]
-enableassertions[:<packagename>...|:<classname>]
enable assertions
-da[:<packagename>...|:<classname>]
-disableassertions[:<packagename>...|:<classname>]
disable assertions
-esa | -enablesystemassertions
enable system assertions
-dsa | -disablesystemassertions
disable system assertions
C:\Program Files>

That error means that the file does not exist or you got the filename wrong (which means it does not exist)...
recheck the location of your file and verify that it actually there...
Step 2, now that we know that the J2SDK1.4.2_03 is installed in C:\j2sdk1.4.2_03\bin...
We can now set you path... If you have an Windows 2000 or XP then check this link in the forum...
http://forum.java.sun.com/thread.jsp?forum=54&thread=491703&tstart=0&trange=15
So what you do is right click on My Computer (icon) which will give you a menu...
Select Properties at which point you will see the System Properties Dialog window...
Select the Advanced Tab (called Details in Win2000) Click on the Environment Variables button...
Which will open the Environment Variable Dialog window... then in the second little window labeled System Variables, select Path and click on the edit button...
you will now see the Edit System Variable dialog window...
in Variable Value goto the the end of that line (make sure that nothing is selected/highlighted), type
";c:\j2sdk1.4.2_3\bin
make sure that you include the semicolon...
click ok to make the change, and via the ok buttons exit System Properties...
reopen DOS and now you should be able to run Javac.exe anywhere...
Hope this helps...
-MaxxDmg...
-' He who never sleeps...'

Sorry... Newbie need help... Win XP Javac not working

Hello....I am pretty new at Java programming, and from wut I have heard...I can run Java applications out of Dos... I learn the codes are Javac and appletviewer. but it doesnt seem to work with win XP professional.... it said that the codes are not internal or external command or something like that....can someone please show me the right way...thanks

I'm assuming you put the path in the Environmental Variables on the Advanced tab in the System settings. You need to put in the path to java bin folder. Make sure you put the right path in - for example on my XP the path I added is c:\j2sdk1.4.0\bin
You can do a search for a file named javac.exe if you aren't sure where it is installed. Also, reboot after setting.

Javac doesnt work

My javac command does not work. My path is correct because the java command works. I think this problem occurs because I dont have the javac.exe file in my bin folder. So was wondering if there is any place where I can download javac.exe, or if someone was kind enough to upload that file on there server, and then give me the web address where you uploaded it, and I can download it from there. Thank you.

huh no edit option. edit option? what's that?
i forgot to ask, if it is
neccasary for me to have jre. if i have jdk. what is
the difference except that it takes up more space.aye, there's the rub: "What's the difference between the jre and jdk?"
JDK = Java Developer's Kit. This is for people who want to develop code.
JRE = Java Runtime Engine. This is for clients who just want to run a Java JVM.
"...except that it takes up more space..." - AND you can develop and compile actual code with one and not the other.
%

[code]javac[/code] works, [code]java[/code] does not work.

I have installed the Java 2 SDK Standard Edition v1.3.1_01. I have set the path in the autoexec.bat file. I created the file WhatsUpDoc.java containing:
public class WhatsUpDoc{
public static void main(String[] args){
System.out.println("What's up Doc?");
}At the DOS prompt, when I type: javac WhatsUpDoc.java there is no compilation error and the WhatsUpDoc.class file is created. But, when I type java WhatsUpDoc at the DOS prompt, I get:
Exception in thread "main" java.lang.NoClassDefFoundError: WhatsUpDocI have compiled several applets working just fine on a web page. Why I cannot run this simple application?
Thank you for your help.
Michel Cariotis

I have installed the Java 2 SDK Standard Edition
v1.3.1_01. I have set the path in the
autoexec.bat file.What have you set the CLASSPATH to? It should be ".;%JAVA_HOME%\jre\lib\rt.jar". It looks like the CLASSPATH is wrong, so java can't see the class in the current directory. :-/
Bhav

My javac doesent work

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