Question

I installed JDK on my PC running windows XP, the default directory of JDK is :

C:\Program Files\Java\jdk1.7.0_05\bin

I’m following the tutorial to do a sample
My source file named HelloWorld is in another directory : E:\NotePad\Code

As the tutorial says : “To compile your source file, change your current directory to the directory where your file is located” , so I change my Command’s current directory to E:\NotePad\Code , but here comes the problem which is saying ‘javac’ is not recognized as an internal or external command

Well, the tutorial has a solution to this problem, it seems that I should change Command Line’s current directory to where the JDK is installed which is : C:\Program Files\Java\jdk1.7.0_05\bin

After I finish it, I try this commond : javac HelloWorld.java to compile the file, but it says

javac : cannot find file : HelloWorld.java

It means that the HelloWorld.java file in E:\NotePad\Code can’t be compiled by the JDK which is installed in C:\Program Files\Java\jdk1.7.0_05\bin
I try putting the HelloWorld.java file in C:\Program Files\Java\jdk1.7.0_05\bin , it works fine

So the question is : How can I Compile&Run a file with the JDK installed in a different directory ?

Answer 1

You will either need C:\Program Files\Java\jdk1.7.0_05\bin on your PATH, or reference the compiler directly using

C:\Program Files\Java\jdk1.7.0_05\bin\javac