packages imported correctly but the source files are not getting compiled well from K & B chapter 10

[Prasad Kharkar]

I was trying a little experiment with the source files in different packages
but I am getting following errors
this is my directory structure and the programs also are given below

Directory structure is

 
JarDemo(package)
    |        
    |________ A.java
    |________first (package)
                       |
                       |_____ B.java
                       |_____subFirst(package)
                                        |
                                        |C.java
                                        |_____
                             
 

following are the source files

  
package JarDemo;
import JarDemo.first.B;
public class A {
	public static void main(String[] args) {
		bMethod();
	}
}
 


package JarDemo.first;
import JarDemo.first.subFirst.*;
 
public class B{
	public static void bMethod(){
		System.out.println("we are calling the cMethod from class B");
		cMethod();	
	}
}


package JarDemo.first.subFirst;

 
public class C{
	public static void cMethod(){
		System.out.println("This is in the C class");
	}
}

 

and when I compile the program using commands then I get following error messages

F:\Java\Concepts\Development>javac JarDemo/first/subFirst/C.java

F:\Java\Concepts\Development>javac JarDemo/first/B.java
JarDemo\first\B.java:7: cannot find symbol
symbol  : method cMethod()
location: class JarDemo.first.B
                cMethod();
                ^
1 error

F:\Java\Concepts\Development>javac JarDemo/A.java
JarDemo\A.java:5: cannot find symbol
symbol  : method bMethod()
location: class JarDemo.A
                bMethod();
                ^
.\JarDemo\first\B.java:7: cannot find symbol
symbol  : method cMethod()
location: class JarDemo.first.B
                cMethod();
                ^
2 errors

F:\Java\Concepts\Development>

please help me

[Frits Walraven]

Hi Prasad,

javac JarDemo/first/B.java
JarDemo\first\B.java:7: cannot find symbol

B.java uses something from class C.java, so you have to give the path to the compiler when compiling class B

you have to use the command javac -cp

have a look at my notes (SCJP Faq) chapter 10

Regards,
Frits

[Prasad Kharkar]

I tried like you said but it is not working
I know I have made mistake but can't figure out where
and I could not find any satisfactory answer in the link you provided
I tried following commands now
but not working

   
F:\Java\Concepts\Development>javac -classpath JarDemo\first\subFirst JarDemo\fir
st\B.java
JarDemo\first\B.java:2: package JarDemo.first.subFirst does not exist
import JarDemo.first.subFirst.*;
^
JarDemo\first\B.java:7: cannot find symbol
symbol  : method cMethod()
location: class JarDemo.first.B
                cMethod();
                ^
2 errors 

[Abimaran Kugathasan]

For static members, you should use static imports, like,

import static pathName.className.*; // To import all static members, inculding methods,static variables, etc..

[Frits Walraven]

Hi Prasad,

Change the following method call (in public class A)

bMethod();    

into

B.bMethod();    

Change the following method calls (in public class B)

  cMethod();  

into

  C.cMethod();  

then compile with the package dir as a subdir (i.e. from your root):
javac JarDemo\first\subFirst\C.Java JarDemo\first\B.java JarDemo\A.java

Regards,
Frits

[Prasad Kharkar]

Thanks Frits
that helped
resolved