Java Compiling problem

Slaanesh

I have a problem at home with compiling programs in java where I am trying to create an object of another class, such as in the following example:

class CDTest
{
	public static void main(String[] args)
	{
		CompactDisc cd1 = new CompactDisc();
	}
}

The outputted error is:

C:\My Documents\CDTest.java:5: cannot resolve symbol
symbol : class CompactDisc
location: class CDTest
CompactDisc cd1 = new CompactDisc();
^
C:\My Documents\CDTest.java:5: cannot resolve symbol
symbol : class CompactDisc
location: class CDTest
CompactDisc cd1 = new CompactDisc();
^
2 errors

Yes the filename is correct and yes they are in the same directory and yes I have tried it on another computer and it compiled nicely. What is the story ??

scojones

Originally posted by Slaanesh
I have a problem at home with compiling programs in java where I am trying to create an object of another class, such as in the following example:
<-snip->

Yes the filename is correct and yes they are in the same directory and yes I have tried it on another computer and it compiled nicely. What is the story ??

Right, it's a silly problem with java on windows. You're probably using jdk or something.. anyway just simply put the class file that holds the compactdisk method into the same folder as the program you are trying to compile and it should work. hope this helps kthnx!

sjones

lynchie

Are both files in the same directory? If so try adding a -classpath %CLASSPATH%;. when compiling or -classpath $CLASSPATH:. under unix

Hobbes

What Lynchie said. Put the ".\" into the classpath or "." so that it can find the classes in the current directory (where you may be running it from.

It's the only obvious thing without seeing the rest of the code.

Slaanesh

I'll try it when I get home.

Thanks,

Slaan

Giblet

textpad is good at stopping this mularky, and it automatically setups the JDK to work aswell (if you've installed it right)

Enygma

AFAIK the current directory is implicitly added to the CLASSPATH in JDK versions 1.2 and above. In the earlier versions you had to add it yourself, this might be the reason it compiled ok on one computer. Of course i could be all wrong

If I ever get this problem I just use "javac *.java", or you could put together a little Ant buildfile that can be used for any small project. That way you'll never see this problem ever again.

Hobbes

actually now that I think of it, he would of also had to of compiled the other file first, or use "-sourcepath" argument in javac in order for it to compile.

Slaanesh

Actually,

I just pointed the classpath to the directory that I was working in, is there a way to point to the 'Working Directory' because I don't want to be changing the class directory all the times I want to compile multiple classes.

Slaanesh.

lynchie

Adding -classpath %CLASSPATH%;. will always add the current working directory to the classpath. The same goes with the sourcepath too.