import jar, many files, no main, -d command line

[Helene Renaud]

Hi all,

Here's my code:

in file A:

package p1;
import p2.B;
import net.mindview.util.*;

public **class A** {
   B b = new B();
 public static void main(String[] args) {

 }
}

... new file (B):

package p2;

import net.mindview.util.*;


public **class B**{

print("class B");
}

three of them all, with the *.jar, in one basic folder; I can compile while using the -cp, but then, import jar doesn't follow..

I can't have it working while using -d...

Thanks for your help

[Stephan van Hulst]

Welcome to CodeRanch!

JARs are not "imported".

Please show us the commands you used to build AND run that worked, and then show us the commands you used to build AND run that didn't work.

[Helene Renaud]

Here,


Then, I corrected it to work as per the example I had:

I added the line to import 'util.*', and the word 'static', on the import jar, as per this code:

import java.util.*;
import static net.mindview.util.Print.*;

public class HelloWorld {
 
     
    public static void main(String[] args) {
        System.out.println("hello world");
        print("this does not work");
    }
}

Compile this way works fine:
  javac -cp net.mindview.util.jar;. Helloworld.java
   and run as per:
   java -cp net.mindview.util.jar;. Helloworld

If I change -cp for -d; I get an error...
(net.mindview.util.jar;. not found) as you said...

I wrote the same cmd for A and B classes

compile: javac -cp net.mindview.util.jar;. A.java B.java
run :     java -cp net.mindview.util.jar;. A

          Couldn't find or load main class p1.A
           (of course)

and if I rather write
          java A
          ... couldn't load or find main class A

So, at compile, there is no error but in fact, it doesn't create directory structure...
Is there any ways to trick it? Like compiling the all pack in jar, then unjar with -d?


Thanks again for your answers to come.


Helene

[Stephan van Hulst]

I think you are confused about what the -d switch does.

Can you explain in your words what you think it does? What do you want it to do?