I’m trying to use javac with the windows command prompt, but it’s not working.
I am unable to runthe javac command
After adding the directory “C:Program FilesJavajdk1.6.0_16bin” to the end of the environment path variable, the java command works fine, but using javac gives me the following error:
Any ideas? Thanks.
Answers:
If you added it in the control panel while your command prompt was open, that won’t affect your current command prompt. You’ll need to exit and re-open or simply do:
By way of checking, execute:
from your command prompt and let us know what it is.
Otherwise, make sure there is a javac in that directory by trying:
from the command prompt. You can also tell which executable (if any) is being used with the command:
This is a neat trick similar to the
which and/or whence commands in some UNIX-type operating systems.
Answers:
Windows OS searches the current directory and the directories listed in the PATH environment variable for executable programs. JDK’s programs (such as Java compiler javac.exe and Java runtime java.exe) reside in directory “bin” (where denotes the JDK installed directory, e.g., C:Program FilesJavajdk1.8.0_xx). You need to include the “bin” directory in the PATH.
To edit the PATH environment variable in Windows XP/Vista/7/8:
(( now read the following 3 times before proceeding, THERE IS NO UNDO ))
In “Variable value” field, INSERT “c:Program FilesJavajdk1.8.0_xxbin” (Replace xx with the upgrade number and VERIFY that this is your JDK’s binary directory!!!) IN FRONT of all the existing directories, followed by a semi-colon (;) which separates the JDK’s binary directory from the rest of the existing directories.
DO NOT DELETE any existing entries; otherwise, some existing applications may not run.
Answers:
After a long Google, I came to know that javac.exe must be inside JDK(C:Program FilesJavajdk(version number)bin) not inside JRE (C:Program Files (x86)Javajre7bin) “JRE doesn’t come with a compiler. It(JRE) is simply a java runtime environment. What you need is the Java development kit.” in order to use compiler javac
javac will not work if you are pointing bin inside jre
In order to use javac in cmd , JDK must be installed in your system…
For javac path
path = C:Program Files (x86)Javajre7bin this is wrong
path = C:Program FilesJavajdk(version number)bin this is correct
Make sure that “javac.exe” is inside your “C:Program FilesJavajdk(version number)bin”
Don’t get confused with JRE and JDK both are totally different
if you don’t have JDK pls download from this link http://www.oracle.com/technetwork/java/javase/downloads/index.html
reference thread for JDK VS JRE What is the difference between JDK and JRE?
Answers:
I know this may not be your specific error, but I once had a leading space in my path and java would work but javac would not.
For what it’s worth, I offer the sage advice: “Examine your Path closely”.
Answers:
Try the solutions here: http://techdem.centerkey.com/2009/05/javahome-command-script.html
These are much more robust to change — like when you upgrade the JDK or JRE, since there is no hard coded path.
The quick solution (if you don’t want to read the blog) is
You can then add these lines to a startup/login script.
Answers:
I just had to do this to get this to work on windows 7 64.
Open up a command prompt (cmd.exe) and type:
Make sure you reopen all running command prompt Windows to get the environment variable updated as well. Studio t clothing.
Answers:
Okay this can not be the case always but many of us have done this mistake in the past and few out of those are still not aware of it, which is, every time you append a path (any path) of any environment variable, you’re likely to hit the space bar right after the “semicolon” (as you normally would, after the “period” while typing in an editor).
This will create a leading space in the path e.g ” C:Program FilesJavajdk1.6.0bin” and therefore “javac.exe” won’t be found by the system.
Answers:
Change the folder “jdk1.7.0_45” “jdk1_7_0_60” and update the path in Windows environment. Otherwise, the path ignores the dot at the front which stands for hidden file and so the folder is not displayed in PATH strings.
Answers:
I faced the exact same problem that java would work but javac would not on a cmd prompt in Windows 8.
The problem occured because I forgot to remove
'>' at the end of the path name, i.e., it was like this:
where it was suppose to be like this:
Answers:
The path will only be set for the administrator account. Therefore it is important to launch command prompt as administrator, if you are not already.
Answers:
Ensure you don’t allow spaces (white space) in between paths in the Path variable. My problem was I had white space in and I believe Windows treated it as a NULL and didn’t read my path in for Java.
Answers:
I was having the same problem posted in this title. Java would work, but
javac would not in the Windows command prompt (cmd.exe ).
For me, it was simply that I had placed a space when adding
C:Program FilesJavajdk1.8.0bin to the end of my %PATH% environment variable.Remove the space between the ; and the next file path.
Answers:
I appreciate this is an old question now but my solution wasn’t an answer on here so posting it in case anyone else tries all the rest.
In my case, a previous install of the Java JRE (in ProgramData/Oracle/Java) had a path variable at the top of my list of path variables. The contents of that “Oracle” path had a java.exe but not a javac.exe.
I added my full JDK path to the top of the list of path variables, ahead of the “Oracle” one, and it then picked up javac.exe as well as java.
Answers:
Questions:
“;C:Program FilesJavajdk1.6.0bin” sometime you may forget to put semicolon on last existing path.
Answers:
When i tried to make the .java to .class the command Javac didnt work. I got it working by going to C:Program Files (x86)Javajdk1.7.0_04bin and when i was on that directory I typed Javac.exe CTesttest.java and it made the class with that tactic. Try that out.
Answers:
Give it as “C:Program FilesJavajdk1.6.0_16bin”. Remove the backslash it will work
Tags: java, windows
from @Zayik,
VS Code recognizes that OpenJDK is not downloaded and informs user to download it from
https://developers.redhat.com/products/openjdk/overview/ Microsoft windows 10 free upgrade.
Upon doing so, the user is still unable to use javac to compile the code. They receive the error
'javac' is not recognized as an internal or external command, operable program or batch file.'
This is very frustrating to new users, and those who are rusty towards knowing about pathing and environment variables. At this point, the user is still stuck despite following VS Code prompt.
Javac Is Not Recognized Windows 10
Once the JDK is downloaded, VS Code should probably either auto include the path in its built in terminal, or prompt the user to locate the JDK to add the path. At the very least, it could send a reminder that the pathing needs to be updated in order to use it and direct them to a useful link.
Javac Is Not Recognized Windows 10 64-bit
This would make setting up VS Code dramatically quicker for those who are just learning coding in general. It would also add convenience for those who are already more adept at coding by giving them one less thing to worry about.
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |