How do i compile B.java?

[Raju Champaklal]

suppose i have a directory xcom and inside i have a file called A.java class A{}
and in the xcom dir i also have B.java which is

  package xcom;
class B extends A{}  

now i am in my xcom directory on the command prompt

i compile A.java using javac A.java which compiles...but when i use javac B.java it doesnt? why ?

[Seetharaman Venkatasamy]

Raju Champaklal wrote:but when i use javac B.java it doesnt? why ?

It wont help you to get the answare . tell us the exception or error that what you are getting.

[Raju Champaklal]

cannot find symbol class A
public class B extends A

even though B.java and A.class are in the same directory then why cant B.java find A.class?

[Ankit Garg]

Raju Champaklal wrote:now i am in my xcom directory on the command prompt

Compile both fils from the parent directory of xcom directory...

[Raju Champaklal]

could not understood you....how can B.java compile from the parent dir when the source file is in the xcom dir

again

 
//C:\javaankur\foo\test\xcom\A.java
 class A
{
} 


//C:\javaankur\foo\test\xcom\B.java
package xcom;
public class B extends A
{
} 

now do i compile both of them from xcom dir on the command...or the test dir? iam getting A class symbol not found error

[Ankit Garg]

Since class A is not in a package, then why have you put A.java in xcom directory?? Put A.java in test directory and compile both A.java and B.java from test directory...

[Raju Champaklal]

still no success

[Minhaj Mehmood]

Raju Champaklal wrote:could not understood you....how can B.java compile from the parent dir when the source file is in the xcom dir

again

 
//C:\javaankur\foo\test\xcom\A.java
 class A
{
} 


//C:\javaankur\foo\test\xcom\B.java
package xcom;
public class B extends A 
{
} 

now do i compile both of them from xcom dir on the command...or the test dir? iam getting A class symbol not found error

 
//C:\javaankur\foo\test\xcom\A.java
package xcom; //mention the package.
class A
{
} 


//C:\javaankur\foo\test\xcom\B.java
package xcom;
public class B extends A 
{
} 

try
C:\javaankur\foo\test>javac xcom/B.java

[Sridhar Gudipalli]

Try this:

//save this file at C:\SCJPProj\com\sri\ASuperClass.java
package com.sri;
public class ASuperClass
{
ASuperClass(){
}
}

//save this file at C:\SCJPProj\com\sri\BSubClass.java
package com.sri;
public class BSubClass extends ASuperClass
{BSubClass(){
}
}

1) To compile all the files at once.
Open command prompt and navigate to C:\SCJPProj
javac -d . \com\sri\*.java

2) To compile BSubClass file
Open command prompt and navigate to C:\SCJPProj
javac -classpath C:\SCJPProj com\sri\BSubClass.java

Refer: http://java.sun.com/j2se/1.3/docs/tooldocs/win32/javac.html

[Leonardo Carreira]

if you followed Sridhar's code, you could do as follow also to compile all java classes :
Assume that java files saved in this directory : C:\SCJPProj\com\sri\*.java

1.) Open command prompt //if you use Windows
2.) Navigate to root directory //assume that the root directory is C:/>
3.) in the command prompt type this :

C:\>javac /SCJPProj/com/sri/*.java