Compile class file, check for code structure quality

now i am trying to develop a system for my college final year project..the main function is to help the lecturer to mark the student java assignment
any way to compile the java file..just to check for the error? if got error then 0 mark..no error got mark..and then check for the code structure and so...base on that ..to decide the student mark..like if good structure 20 mark..bad? 5 mark and so.
is it possible to do so?
Junit?
any sample?

Checking for errors is easy, just write a script to check if javac completed successfully. You can use similar approaches (possibly needing to parse the output) for jlint/PMD/whatever to check code structure. If there's any custom checks you want to do, though, I suggest you grab a parser (possibly witgh semantic analysis; I've found the Eclipse one is rather easily extracted and is good for this stuff) and write manual checks. It might be easier to write PMD rules, but you won't have the flexibility.

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Error while De-Compiling class files

Hi Gurus,
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I have experienced this with couple of times now. I am using JAD as a tool.
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-Abm

"Some of the class files are not getting de-compiled correctly. When I open de-compiled Java file, the code is with errors where some of the code lines are not in proper form."
Well, unless you put a sample of error, how do you expect any solution?--Shiv

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http://technet.microsoft.com/en-us/library/ms176064.aspx

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What happened when you tried what you have there?

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Hi,
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Edited by: Praveen Gujjeti on Jun 23, 2008 5:12 PM

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Thanks in Advance.

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Getting the class name from within the compiled class file

hey!
I was wondering (i know its possible) how to read a .class and get the name of the class. ok that made not much sense^^ so, You have a file: c:\f.class but it wont run because the file name has to be the same as the classes name, right? so how can you read the class file i guess in binary mode to receive the correct class name.
I saw inside my f.class i have "realname.java" so i know now that the name of the class file should be realname.class, i tried ways to extract it from the class file but never had any success.
i think i need to study english^^
ps: i need this because i have some class files sent to me and the file names have been changed so they wont work, they only work when i open the class file in notepad and find out what its real name should be and then rename the file.
Edited by: forgotmydamnpass on May 7, 2009 11:23 AM

ah looks interesting, problem is i cant use it.. im prone to errors!
import java.net.URLClassLoader;
public class NewMain {
     * @param args the command line arguments
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        Class clazz = loader.createclass("c:\\f.class");
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}apparently "createclass" doesnt exist :/
FileClassLoader = cannot find symbol
Method = cannot find symbol

How do I call a class file in my code?

Hi,
I have defined a class, 'WFLTrigger', in a file named WFLTrigger.java. I need to call a method of another class, 'importFile', from within the 'WFLTrigger' class. The 'importFile' class is hard-coded in another file named importFile.java.
The following is the code snippet I use in the 'WFLTrigger' class to call the 'importFileMethod' method of the 'importFile' class.
importFile impF = new importFile();
impF.importFileMethod( clientX, session, "0b0007d58001c142", theFile );
But, while compiling, I am getting an error:
cannot find symbol.
symbol : method importFile()
location: class WFLtrigger
importFile( clientX, session, "0b0007d58001c142", theFile );
1 error
Can anybody help me out here as to what is going wrong?
Thanks,
Arun

Hi Paul,
Thanks for the reply. In fact, I initially had the line of code:
importFile( clientX, session, "0b0007d58001c142", theFile );
Then I changed it to the snippet that I posted. I am using NetBeans 4.0 IDE on Windows 2000 SP4 OS.
I am posting my entire code below:
import com.documentum.fc.client.*;
import com.documentum.fc.common.*;
import com.documentum.com.*;
import com.documentum.operations.*;
import com.documentum.fc.client.IDfSysObject;
import com.documentum.fc.client.IDfType;
import com.documentum.fc.common.DfId;
import java.util.* ;
import java.lang.Integer;
public class WFLtrigger
public WFLtrigger(String[] args)
IDfClientX clientX = new DfClientX();
IDfClient client = DfClient.getLocalClient();
IDfSessionManager sMgr = client.newSessionManager();
IDfLoginInfo loginInfo = new DfLoginInfo();
loginInfo.setUser("abc");
loginInfo.setPassword("xyz");
loginInfo.setDomain("");
sMgr.setIdentity( "pqr", loginInfo );
IDfSession session = sMgr.getSession( "pqr" );
IDfFile theFile = clientX.getFile( "C:\\wet" );
importFile impF = new importFile();
impF.importFileMethod( clientX, session, "0b0007d58001c142", theFile );
NetBeans does not compile it. It gives an error as stated in the post above at the 2nd last line.
I appreciate any help on this.
Thanks,
Arun

Compile class file, check for code structure quality

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