A very basic query, Please help.

Question

Hi all,
I am very new to java and need your help in getting rid of this error. Please help.
I have written two java files. packageTest.java and callPackageTest.java. Following is the code:
// packageTest.java
package aaa.bbb.ccc;
public class packageTest
     public packageTest()
          System.out.println("This is from inside package test constructor");
     public static void main(String[] args)
          packageTest obj1 = new packageTest();
          System.out.println("Hello World!");
//callPackageTest.java
import aaa.bbb.ccc.*; // there is a star at the end. Seems to get removed by the forum every time.
public class callPackageTest
     public static void main(String[] args)
          packageTest obj1 = new packageTest();
          System.out.println("Hello World!");
Now when I compile packageTest.java with the following command:
javac -d . packageTest.java
I get correct class file created in correct directory, i.e. aaa/bbb/ccc/packageTest.class.
But now when I try to compile the java file callPackageTest.java with the following command:
javac -cp . callPackageTest.java
I get the following error message:
class file contains wrong class.
Please remove or make sure it appears in the correct subdirectory of the classpath
I also observed that when I put the complete class name in the import statement in the file callPackageTest.java ( import aaa.bbb.ccc.packageTest; ) then there is no error. But I expect the same to be done when I write import aaa.bbb.ccc. * ( an star at the end)
Where is the mistake ? Please help.
Thanks in advance.
Sinha
Edited by: sinha_java on May 26, 2010 10:50 PM
Edited by: sinha_java on May 26, 2010 10:52 PM

Answer 1

Thanks guys for all the information about how to post and other forum related stuff. So here goes the formatted code.
I have written two java files. packageTest.java and callPackageTest.java. Following is the code:
// packageTest.java
package aaa.bbb.ccc;
public class packageTest
public packageTest()
System.out.println("This is from inside package test constructor");
public static void main(String[] args)
packageTest obj1 = new packageTest();
System.out.println("Hello World!");
//callPackageTest.java
import aaa.bbb.ccc.*;
public class callPackageTest
public static void main(String[] args)
packageTest obj1 = new packageTest();
System.out.println("Hello World!");
Now when I compile packageTest.java with the following command:
javac -d . packageTest.javaI get correct class file created in correct directory, i.e. aaa/bbb/ccc/packageTest.class.
But now when I try to compile the java file callPackageTest.java with the following command:
javac -cp . callPackageTest.javaI get the following error message:
class file contains wrong class.
Please remove or make sure it appears in the correct subdirectory of the classpath
I also observed that when I put the complete class name in the import statement in the file callPackageTest.java ( import aaa.bbb.ccc.packageTest; ) then there is no error. But I expect the same to be done when I write import aaa.bbb.ccc.*
Where is the mistake ?