Can someone help me with Java installation on windows 7

[UltimateSomni]

I bought a book for beginners and it said "On Windows Vista or Window XP, navigate through Start, Control Panel, System, Advanced (System Settings), Environment Variables. Select the System Variable named "Path" and then click the Edit button. Add the address of Java;'s bin sub directory at the end of the list in the Variable Value field. For instance add C:\Java\bin; then click the OK button"

I don't have XP or Vista, does anyone know what the 7 equivalent of what it is asking to do is?

Edit: nevermind, I did all that but when I do the "java -version" thing or "javac -version" it says that it is not recognized as an internal or external command

Well, java is now recognized but not javac

 

[Bill Simpson]

http://introcs.cs.princeton.edu/java/15inout/windows-cmd.html

"This document instructs you on how to use the Windows Command Prompt with Java. These instructions are specialized to Windows 7..."

 

[Borg]

javac is the compiler for Java. It doesn't come with the standard SDK that is installed for most users. If you didn't download the JDK (http://en.wikipedia.org/wiki/Java_Development_Kit#JDK_contents") for Java (vs. the SDK), javac won't be on your computer.

 

[UltimateSomni]

I got the JDK 64, bit , most recent update

Did the PATH stuff: http://oi54.tinypic.com/2rnu439.jpg
http://oi53.tinypic.com/9ktnwo.jpg

But I get: http://oi54.tinypic.com/2mrcqih.jpg

 

[Borg]

I got the JDK 64, bit , most recent update

Did the PATH stuff: http://oi54.tinypic.com/2rnu439.jpg
http://oi53.tinypic.com/9ktnwo.jpg

But I get: http://oi54.tinypic.com/2mrcqih.jpg

A dumb question but, I've learned to ask anyway - is javac in your C:\Program Files\Java\jre\bin directory? That looks like the typical original jre (Java Runtime Environment) that doesn't have javac.

 

[UltimateSomni]

A dumb question but, I've learned to ask anyway - is javac in your C:\Program Files\Java\jre\bin directory? That looks like the typical original jre (Java Runtime Environment) that doesn't have javac.

I don't know where my javac is, if I type javac into the run thing I get an error.

Here is what I downloaded: http://i54.tinypic.com/v4cf44.jpg

As you can see, I since downloaded Netbeans, but the location it gave me C:\Program Files\Java\jdk1.6.0_25 leads to the cmd prompt not even recognizing java.

 

[Grep]

I don't know where my javac is, if I type javac into the run thing I get an error.

Here is what I downloaded: http://i54.tinypic.com/v4cf44.jpg

As you can see, I since downloaded Netbeans, but the location it gave me C:\Program Files\Java\jdk1.6.0_25 leads to the cmd prompt not even recognizing java.

Time to learn how to use the file manager, I suspect. Have you tried looking around in C:\Program Files\Java to see if you can find javac.exe? Wherever it is, that's what goes in your path.

I would take a guess that maybe it's in C:\Program Files\Java\jdk1.6.0_25\bin, but break out that file manager and find it. There's also a search function in there somewhere, I'm pretty sure. I'd be more specific about where to find the search feature in the file manager (aka File Explorer or something like that), but I don't have a Windows system around to check things.

 

[Borg]

Time to learn how to use the file manager, I suspect. Have you tried looking around in C:\Program Files\Java to see if you can find javac.exe? Wherever it is, that's what goes in your path.

What he said.

I would take a guess that maybe it's in C:\Program Files\Java\jdk1.6.0_25\bin, but break out that file manager and find it. There's also a search function in there somewhere, I'm pretty sure. I'd be more specific about where to find the search feature in the file manager (aka File Explorer or something like that), but I don't have a Windows system around to check things.

The path variable tells your system what directories to look in for programs, dlls, etc. If you can't find the program in those directories, Windows isn't going to find it either.

The search function in Windows can be found by selecting a directory from the file manager and right clicking on it.

 

[UltimateSomni]

Time to learn how to use the file manager, I suspect. Have you tried looking around in C:\Program Files\Java to see if you can find javac.exe? Wherever it is, that's what goes in your path.

I would take a guess that maybe it's in C:\Program Files\Java\jdk1.6.0_25\bin, but break out that file manager and find it. There's also a search function in there somewhere, I'm pretty sure. I'd be more specific about where to find the search feature in the file manager (aka File Explorer or something like that), but I don't have a Windows system around to check things.

Got it, it is C:\Program Files\Java\jdk1.6.0_25\bin

 

[HeLiXe]

Is it working now?

 

[math34]

i am having the same issue here but can not find javac.exe...

what do i do know?!

 

[Borg]

i am having the same issue here but can not find javac.exe...

what do i do know?!

Did you download the JDK (Java Development Kit) version?

There are two types of java installation - One for general use that doesn't have the javac compiler and the version for developers that does have it. If you didn't personally download the JDK, then you won't have javac on your computer.

 

[math34]

yes i believe so

 

[HeLiXe]

Are you using Windows 7 also math34?

 

[Borg]

yes i believe so

Then it will be in the /bin directory where you installed it.

 

[math34]

Are you using Windows 7 also math34?

yea I am using windows 7 here

 

[math34]

ok so i went under C:\Java\bin

i see javac in this bin folder

excuse me, i have little to no experience with programming here...what is the next step to fix this issue?

Thanks!

 

[Borg]

The simpliest way would be to put it in your computer's system path. I don't have Windows 7 so I'll do my best to get you to what you need. I'm listing how to do it from XP but, I think that it is the same as long as you can find the Control Panel.

Open your Control Panel and open the System link.

Go to the Advanced Tab and select Environment Variables.

The Environment Variables window will have two sections - one for the current user and one for the system. Try to add the C:\Java\bin directory to the end of the Path variable for the current user or the System (if you want it set for everyone). Be sure to use a semicolon (;) to separate the new path from the others.

Close the properties windows and it should work when you try to use the javac command to compile. If not, you may need to restart the compter for it to take effect. You can check by opening a dos window and type the word 'set' at the command prompt. That will display your current path variables along with other information.