How to calling a class from another folder

[druhy svet]

Greetings all,

I am very new to Java...starting out with basics.
So not using any IDE, just plain Notepad and compiling and running from command line.

I was trying to call a method of a class in another folder. But getting an error.
Placing the codes below.

Folder 1: H:\J\A\
File: Test.java

public class Test {
	 public void printHello () {
		 System.out.println("Hello");
 	}
}

Compiled this.
H:\J\A>javac Test.java

No errors.


Second Java file which contains 'Main' and calls the 'Test' class.

Folder 2: H:\J\B\
File: UseTest.java

public class UseTest {
	public static void main (String[] args) {
		Test t = new Test();
		t.printHello();
	}
}

When trying to compile this -
H:\J\B>javac -classpath H:\J\A\; H:\J\B\UseTest.java

compiled fine.

But when trying to run this-
H:\J\B>java -classpath H:\J\A\; H:\J\B\UseTest

got error-
Error: Could not find or load main class H:\J\B\UseTest

Can somebody help me with this?

Thanks in advance.

~DS

edit: added code tags /SL

[Ulf Dittmer]

Welcome to JavaRanch.

If you keep classes in separate directory trees, then you need to add all of them to the classpath, like java -classpath H:\J\A\;H:\J\B UseTest. You can't specify any directory as part of the class name.

The usual approach to keeping source and class files in separate directories, but still have only a single directory tree, involves packages: http://docs.oracle.com/javase/tutorial/java/package/index.html

[Steve Luke]

And welcome to the Ranch!

I went and added code tags to your post so the code is easier to read. Please see UseCodeTags to see how.

[druhy svet]

Thank you for clarifying.
It is working fine now.