A simple class

[C Shinde]

I have a question:

A simple class:

public class Main {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        
        System.out.println("Hello World");

    }

}

If I run this from command prompt can someone tell me how many classes are loaded before this class is run? We can consider JDK 1.4 and also JDK 1.5.

Thanks in advance.

[Jesper Young]

C Shinde wrote:If I run this from command prompt can someone tell me how many classes are loaded before this class is run? We can consider JDK 1.4 and also JDK 1.5.

That's very hard to say, there is no simple way to find this out. To find out, try running the program with a profiler, which might be able to show you this information. JDK 1.5 contained a simple profiling tool, JConsole, and JDK 1.6 contains a more sophisticated tool, JVisualVM.

[Campbell Ritchie]

Not a "beginning" question. Moving thread.

[Somnath Mallick]

Wont debugging in Eclipse give a rough idea?

[Campbell Ritchie]

Somnath Mallick wrote:Wont debugging in Eclipse give a rough idea?

No

Jesper's advice about JConsole will help.

[Rob Prime]

Or simply run "java -verbose Main".

[C Shinde]

Rob,

As you said I tried

verbose

and it gave me a list of classes as being loaded.
The packages that the class belonged to were, java.land, java.io,sun.reflect,java.util,java.security, sun.misc....and lots more...
I understand some of them are the default packages and so they are loaded.

Thanks for the help.

[Campbell Ritchie]

I never knew about -verbose