Implementing JAVA Apis

Question

I am running java 5_7 from the command prompt on Windows.
The error is that i have put various jar apis in my lib/ext file. When I am compiling from the command prompt i can use those apis. So for example:
java org.apache.lucene.IndexFiles SCOTUSLex
at the command prompt works and runs the IndexFiles class. If however, i attempt to import the api in a java program with all of the other imports, so for example:
import java.util.*;
import org.apache.lucene.*;
when I attempt to compile it, it tells me that the org.apache.lucene package does not exist. This is true of any other api i try to use this way as well.
My classpath contains the following:
.;..;c:\;c:\Program Files\Java\jre1.5.0_07\lib
I have tried making the classpath more explicit (i.e. c:\Program Files\ Java\jre1.5.0_07\lib\ext\ and c:\Program Files\ Java\jre1.5.0_07\lib\ext\*.* and c:\Program Files\ Java\jre1.5.0_07\lib\ext\lucene-core-2.0.0.jar) but all to no avail.
Any suggestions would be much appreciated.

Answer 1

A typical project structure looks like this:
<project name>
  +-- src (or "source" for *.java and resource files)
  +-- lib (for *.jar files)
  +-- bin (or "classes" for the compiler's result)Within the folder <project name>, there's space for *.bat or *.sh files and/or make files (for Ant/Maven). The CLASSPATH for compiling should contain any single *.jar file under "lib" and the "src" folder, the CLASSPATH for running should contain any single *.jar file under "lib" and the "bin" folder.
HTH