Java Compiler CMD Error

[SonicCore]

Whenever I try to run "javac" in the cmd when trying to set up the Java Compiler, it always says the the command is invalid. I have set up the path correctly (i'm 100% sure of that), and even typed "cd C:\Windows\System32," but nothing when I type javac in the cmd. Can I get some help? Thanks!

[KevinWorkman]

What exactly are you typing in? What exactly are you getting back?

How do you know you set up the path correctly?

[SonicCore]

I open CMD, type "cd C:\Windows\System32" and then type javac, and get back "'javac' is not recognized as an internal or external command, operable program or batch file." And I know I set up the path right because I copied the path from the most recent Java's bin folder, where "javac" is located, and put it in the Environment Variables. I did keep everything in the "path" and added it to that.

[JosAH]

Whenever I try to run "javac" in the cmd when trying to set up the Java Compiler, it always says the the command is invalid. I have set up the path correctly (i'm 100% sure of that), and even typed "cd C:\Windows\System32," but nothing when I type javac in the cmd. Can I get some help? Thanks!

Your compiler is not in that directory (type "dir" in that directory and see for yourself); you have to add the directory, where your javac.exe file is stored, to your path variable.

kind regards,

Jos

[SonicCore]

What do you mean type "dir" in that directory, like, what directory exactly and how? I'm kinda new to this kind of stuff, so sorry if i'm a bother.

[JosAH]

What do you mean type "dir" in that directory, like, what directory exactly and how? I'm kinda new to this kind of stuff, so sorry if i'm a bother.

This directory: C:\Windows\System32; I bet your compiler (javac.exe) isn't there.

kind regards,

Jos

[SonicCore]

You're right. But, how can I get it to work?

[JosAH]

Find where your javac.exe file is stored; add that directory to your path variable; normally that fle is stored in C:\Program Files\jdk<version>\bin where <version> is the version of your Java installation.

kind regards,

Jos

[SonicCore]

That's what i've been doing, but I still get nothing.

[JosAH]

That's what i've been doing, but I still get nothing.

Meticuously check for spaces in you path entry: no spaces except between "Program" and "Files"; not even before your path entry.

kind regards,

Jos

[SonicCore]

";C:\Program Files\Java\jdk1.7.0_04\bin" That is what I have in the variable, the semi-colon being the end of the path before it.

[JosAH]

You can check if that directory is actually searched for an executable file by placing a simple .bat file there; e.g.

echo Yep, I'm here

Check it.

kind regards,

Jos

[SonicCore]

Like I said before, i'm new to this. How would I check it?

[JosAH]

Reread my previous reply; I gave you a complete example.

kind regards,

Jos

[SonicCore]

I know, I've made the file and placed it in the directory... but how do I check it?

[JosAH]

Suppose you named that file "foo.bat"; now type "foo" from the command line in any directory; does it print its echo line? (i.e. does it run?)

kind regards,

Jos

[SonicCore]

I named it test, and opened the cmd and typed "test" just like that. It's not a recognized internet or external command, program or batch file

[Norm]

To see what the Path variable is set to, open a command prompt and enter: Path
Copy the reuslts here.

Here's what mine looks like:

D:\JavaDevelopment\Testing>path
PATH=C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\windows\syst
em32;C:\windows;C:\windows\System32\Wbem;C:\window s\System32\WindowsPowerShell\v
1.0\;C:\Program Files\Broadcom\Broadcom 802.11 Network Adapter\Driver;C:\Program
Files\Windows Live\Shared;C:\Program Files\WIDCOMM\Bluetooth Software\;c:\Progr
am Files\Microsoft SQL Server\90\Tools\binn\;C:\Perl\site\bin;C:\Perl\bin ;d:\jav
a\JMF21~1.1E\lib;

D:\JavaDevelopment\Testing>

To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

[SonicCore]

C:\Users\Core Destroyer>Path
PATH=C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Com
mon Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Micr
osoft Shared\Windows Live;C:\windows\system32;C:\windows;C:\windows\Sys tem32\Wbe
m;C:\windows\System32\WindowsPowerShell\v1.0\;C:\P rogram Files (x86)\Windows Liv
e\Shared;C:\Program Files (x86)\Pinnacle\Shared Files\;C:\Program Files (x86)\Pi
nnacle\Shared Files\Filter\;C:\Program Files (x86)\QuickTime\QTSystem\C:\Program
files (x86)\Java\jre6\bin";C:\Program Files (x86)\Microsoft SQL Server\100\Tool
s\Binn\;c:\Program Files\Microsoft SQL Server\100\Tools\Binn\;c:\Program Files\M
icrosoft SQL Server\100\DTS\Binn\;c:\Program Files (x86)\QuickTime\QTSystem\;C:\
Program Files\Java\jdk1.7.0_04\bin

C:\Users\Core Destroyer>

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

There you go.

[Norm]

That looks reasonable. What happens if you open a command prompt and enter:
"C:\Program Files\Java\jdk1.7.0_04\bin\javac.exe"

with the "s?