Convert file.class in file.java

i lost my file.java how to convert my file.class in file.java? help me please!!!!!!!!!!

search for java decompiler. just know that it won't be anywhere as near easy to read as the original.
-S-

Similar Messages

File class question

Hi all,
I've been playing with the File class (as a way of learning about it) and am confused about the behaviour of the following code.
This class is uses recursion as a way of getting a file structure.
import java.io.File;
public class FileTest {
    public static void main(String[] args) {
        if (args.length == 0) {
            return;
        File file = new File(args[0]);
        processFileList(file);
    public static void processFileList(File f) {
        if (f.isDirectory()) {
            System.out.println("found directory: " + f.getName());
            String fileList[] = f.list();
            for (int i=0; i < fileList.length; i++) {
                File newF = new File(fileList);
if (newF.isFile()) {
System.out.println("Found file in list: " + newF.getName());
} else {
System.out.println("Found new directroy is list: " + newF.getName());
processFileList(newF);
} else {
System.out.println("Found file: " + f.getName());
The command line I use is java FileTest testdir
The output from the code is:
found directory: testdir
Found file in list: FileTest.class
Found file in list: Hello.class
Found file in list: LogTest.class
Found new directroy is list: testdir2
Found file: testdir2
The file structure being used is testdir, which contains the three class files and a directory called testdir2. testdir2 contains some java files.
I don't understand why testdir2 is recognised as not being a file, but is not recognised as being a directory. I changed the code to use isDirectory() rather than isFile(), but the results were similar, testdir2 is not recognised as a directory.
Any ideas? Thanks,
dan

When you instantiate the class java.io.File from a String you should use a pathname or depict the parent directory as well as the abstract file name. Or you could use the method listFiles() of the File class.
File[] fileList = f.listFiles();

How to convert a .jsp to a .java/.class file for use in peoplesoft

Hi java/jsp experts,
I want to convert a .jsp to a .java/.class file. is there a tool available, please let me know if you have any pointers....
or can i do it manually:
these are a few lines that the .jsp contains, and i would like to translate this to be in .java/.class format:
<%@ page import="sun.misc.BASE64Encoder, javax.crypto., javax.crypto.spec."%>
<%@ page import="java.util.StringTokenizer" %>
<%@ page import="java.util.Map" %>
<%!
sb.append("<input type=\"hidden\" name=\"orderPage_serialNumber\" value=\"");
sb.append(serialNumber);
sb.append("\">\n");
return sb.toString();
%>
how can i translate the above import statements and html elements from jsp to java, please let me know.
Once i have the .java file created from the .jsp, I will compile .java to create the .class file and invoke the .class in peoplecode by using java apis available in peopletools.
Thanks in advance.

Is there a way convert a binary .exe file( compiled by
another compiler) into Java .class/.jar file ? Anyone
know of a free program that can do this?It's not possible. There are many decompilers and disassemblers for Java but nothing will take you from ANY binary to Java source. It would be the end of computing as we know it and the beginning of a new era -:)

How to convert a .class file into .java file without .jad using DeJDecompil

Hi all,
I am using DeJDecompiler and working with swing applications.If I try to convert a .class file into .java file,it is converting into .jad file only.Fine but if I try to save that file into .java file,It is giving lot of errors in that program.When I went into that program the total style of the program is changed and TRY-CATCH block is not recognised by the dejdecompiler,hence If I try to include some methods in the existing .java file thus got,I could not do.Kindly help me.
If I get the .java file without error then I can process the rest of the functionality.
Thanks in advance
With kind Regs
Satheesh.K

Not so urgent today then!
http://forum.java.sun.com/thread.jsp?thread=553576&forum=31&message=2709757
I'm still not going to help you to steal someone�s code.

How to convert java .class file to .dll file

hi,
I got a problem, I have to convert my java .class file to .dll file. Microsoft VC++ program will invoke the converted .dll file.
Is there any other possibility.
I was confused.
Cam any body help me. If you are having solution for the can you send to my [email protected] account.
thanks,

No, it is not possible to do what you are suggesting. Yes, you could produce a DLL that wraps the JVM and loads your java class exposing a C and/or C++ callable interface, but that is a lot to go through unless your class is VERY complex. Otherwise, you might want to just create and maintain two implementations.

How to convert the javasource file(*.class) to execute file(*.exe)?

How to convert the javasource file(*.class) to execute file(*.exe)?
thank you!

Although i have seen a few programs (that are platform specific) that will embed a small jvm into an exe with your class file, it is generally excepted that you cannot create an executable file using java. The JAR executable file is probably the closest your going to get
Pete

How to convert a .class file?!!

sorry guys,
but I've a question in knowing the code of some file,
I've zipped file, when I unzip it, it contains an html page with a .class files
(passing parameters to applet)
my problem is that I want to know the code of the .java file (which is not included)
but the program is working well, coz I have the .class file,
so, can I convert this .class file into a java file, so its java code could be readable (to understand it)
thanks in Advance :)

sorry man, but Can't u send me a specific link for downloading this "Java decomplier"
coz I found my self in something called (jad decompiler) with lots of versions and this is confusing
and Is that mean, that there's a decompiler which can convert the .class file into .java one?
and thanks alot man.....u help me always!
(I'm still begginner in java)

How to convert a class file to exe file and how to cteate a class file to d

how to convert a class file to exe file

Hi Bhaskarq,
Hi,
It is not at all possible.
But it is a really worst method.
Please go through it.
This is a very common question asked in the comp.lang.java newsgroup. Its often useful to have an
executable application when deploying your
applications to a specific platform, but remember to
make your .class files available for users running
Unix/Macintosh/other platforms.
Microsoft provide a free system development kit (SDK),
for Java, which includes the jexegen tool. This
will convert class files into a .EXE form. The only
disadvantage is that users need a Microsoft Java
Virtual Machine (JVM) installed. If your target
platform is Win32, you can either redistribute the
virtual
machine, or raise the level of your system
requirements, to include Windows 98, or Windows 95
with
Internet Explorer 4. Systems matching these
requirements will already have a copy of the Microsoft
Java Virtual Machine installed.
Note : You must specify all of the class files your
application needs (except for standard java packges)
as a parameter, so if you have third party libraries,
you'll need to include them as well. You can use wildcards * though, and you don't need the original source code.
Also please see this Forum which will give a good idea
http://forum.java.sun.com/thread.jsp?forum=31&thread=149733
I hope this will help you.
Thanks
Bakrudeen
Technical Support Engineer
Sun MicroSystems Inc, India

How to convert .class file to .dll file

hi,
I got a problem, I have to convert my java .class file to .dll file. Microsoft VC++ program will invoke the converted .dll file.
Is there any other possibility.
I was confused.
Cam any body help me. If you are having solution for the can you send to my [email protected] account.
thanks,

No, it is not possible to do what you are suggesting. Yes, you could produce a DLL that wraps the JVM and loads your java class exposing a C and/or C++ callable interface, but that is a lot to go through unless your class is VERY complex. Otherwise, you might want to just create and maintain two implementations.

Converting a class file to a dll

Hai please help me..
I am trying to convert my .class file to a .dll file.
This is my java code:
public class DateFunctions {
     public int getTimeInSeconds(int i){
          return i;
     public int addNumbers(int i, int j) {
          return (i+j);
     public static void main(String[] args) {
          DateFunctions df=new DateFunctions();
          df.getTimeInSeconds(
Created class file DateFunctions.class.
Created jar DateFunctions.jar using:
jar cvf DateFunctions.jar DateFunctions.class
Generated dll file using bimp tool like this (Visual J# .NET tool):
jbimp DateFunctions.jar /t:library
I got the file: DateFunctions.dll
Now loaded this dll into my code (say, TSL code in WinRunner) using load_dll("DateFunctions.dll");
When I try to access the method like:
j=getTimeInSeconds(int i);
I am getting the error RPC error.
Note: DLL is loading fine. but while accessing the functions I am getting the RPC error..
What could be the reason..?
Please help...?
Thanks,
Satish

Your answer lies in the documentation for WinRunner and whatever else is calling the DLL.
Certainly Java JNI has requirements for DLLs called from Java: They have to be C++ bindings that use the native header that Java generates, right?
So now you need to look at the requirements for your WinRunner and make sure that the program translating your .class file to a DLL does it in a such a way that the bindings WinRunner expects are indeed there.
But none of that has anything to do with Java. If your Java class compiles and tests successfully, then your questions about Java are satisfied. You have to figure out what WinRunner needs and what's missing from what you supplied.
%

What is the wrong about converting the .class of api of jc to .cap files?

hi everyone
l tried to convert the .class filses of api to .cap files,there are some wrongs please help me!
___the .opt file:___
-out JCA CAP EXP
-exportpath D:\jCDK2_2_1\api_export_files
-classdir D:\workspace\framework
framework
0x0a:0x0:0x0:0x0:0x62:0x1:0x01 1.2
converter result:
c:documents and settings\administrator>converter -config d:\workspace\framework\framework.opt
java card 2.2.1 class files converter ,version 1.3
copyright 2003 sun microsystems,inc.all rights reserved.use is subject to license terms
error:javacard.framework.JCSystem:unsupported method modifier native in method isTransient.
error:javacard.framework.JCSystem:unsupported method modifier native in method makeTransientBooleanArray.
error:javacard.framework.JCSystem:unsupported method modifier native in method makeTransientByteArray
error:javacard.framework.JCSystem:unsupported method modifier native in method makeTransientShortArray
conversion completed with 13 errors and 0 warnings.
thanks in advance

Hi,
I am not sure why you are trying to convert the API packages into CAP files. The JAR files that ship with the JCDK are only stub implementations for compiling against. They do not have an actual implementation. You will find methods returning a short always return 0 etc. You should only need to convert your code into CAP files. You will just need to reference the .exp files that are included in the JCDK for the API so your code can be converted.
Cheers,
Shane

Convert tline into pdf file document in Java

Dear ALL,
     I built a RFC FM to convert smartform into tline which including PDF data.
the Code:
   Converting to PDF Format
DATA l_lines TYPE TABLE OF tline WITH HEADER LINE.
* DATA l_lines1 TYPE TABLE OF solix_tab WITH HEADER LINE.
DATA l_docs TYPE TABLE OF docs.
DATA len TYPE i.
CALL FUNCTION 'CONVERT_OTF_2_PDF'
    IMPORTING
      bin_filesize           = len
    TABLES
      otf                    = job_output_info-otfdata[]
      doctab_archive         = l_docs[]
      lines                  = l_lines[]                          "this inner table include pdf file data
    EXCEPTIONS
      err_conv_not_possible? = 1
      err_otf_mc_noendmarker = 2
      OTHERS                 = 3.
*CALL METHOD cl_gui_frontend_services=>gui_download
* EXPORTING
*   bin_filesize = len
*    filename     = 'c:\pdf.pdf'
*    filetype     = 'BIN'
*   CHANGING
*    data_tab     = l_lines[]"i_objbin[]
* EXCEPTIONS
*    OTHERS       = 1.
"If i want to save it in my PC ,call this FM CALL METHOD cl_gui_frontend_services=>gui_download.
But i dont want to do it.I want to pass the parameter l_lines[] to java(web) by RFC, and convert to pdf file and show in java(web).
thanks
Freddy

Hi,
Update:
I have tested this and here is some code:
SAP:(I got the OTF from CALL FUNCTION 'PRINT_TEXT')
FORM get_pdf_data
USING
    tdname TYPE thead-tdname
CHANGING
    it_tline TYPE text_line_tab
    bin_file TYPE xstring .
DATA: st_thead TYPE thead .
DATA: it_lines TYPE tline_tab .
st_thead-tdobject = 'TEXT' .
st_thead-tdname   = tdname .
st_thead-tdid     = 'ST' .
st_thead-tdspras = 'E' .
CALL FUNCTION 'READ_TEXT'
    EXPORTING
      id                      = st_thead-tdid
      language                = st_thead-tdspras
      name                    = st_thead-tdname
      object                  = st_thead-tdobject
    IMPORTING
      header                  = st_thead
    TABLES
      lines                   = it_lines
    EXCEPTIONS
      id                      = 1
      language                = 2
      name                    = 3
      not_found               = 4
      object                  = 5
      reference_check         = 6
      wrong_access_to_archive = 7
      OTHERS                  = 8.
IF sy-subrc NE 0 .
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4 .
ENDIF.
DATA: it_otfdata TYPE otf_t_itcoo .
DATA: st_options TYPE itcpo.
st_options-tdgetotf = abap_true .
CALL FUNCTION 'PRINT_TEXT'
    EXPORTING
      dialog                   = abap_false
      header                   = st_thead
      OPTIONS                  = st_options
    TABLES
      lines                    = it_lines
      otfdata                  = it_otfdata
    EXCEPTIONS
      canceled                 = 1
      device                   = 2
      form                     = 3
      OPTIONS                  = 4
      unclosed                 = 5
      unknown                  = 6
      format                   = 7
      textformat               = 8
      communication            = 9
      bad_pageformat_for_print = 10
      OTHERS                   = 11.
IF sy-subrc <> 0.
    MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
            WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
DATA: it_otfdata_m TYPE otf_t_itcoo .
* "Merge pdf output demo"
APPEND LINES OF it_otfdata TO it_otfdata_m .
* DATA: bin_file TYPE xstring .
DATA: it_lines_dummy TYPE tline_tab .
DATA: bin_filesize TYPE i .
CALL FUNCTION 'CONVERT_OTF'
    EXPORTING
      format                = 'PDF'
    IMPORTING
      bin_file              = bin_file
      bin_filesize          = bin_filesize
    TABLES
      otf                   = it_otfdata_m
      lines                 = it_lines_dummy
    EXCEPTIONS
      err_max_linewidth     = 1
      err_format            = 2
      err_conv_not_possible = 3
      err_bad_otf           = 4
      OTHERS                = 5.
ENDFORM.                    " GET_PDF_DATA
Java:
final byte[] byteArray = function.getExportParameterList().getByteArray("BIN_FILE");
final Path path = Paths.get("My.pdf");
Files.write(path, byteArray, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.CREATE);
regards.
Another update:
Using in HttpServlet:
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoFunction;
import com.sap.conn.jco.JCoRepository;
import com.sap.conn.jco.ext.Environment;
import destinations.MyDestination;
public class MyServlet extends HttpServlet {
@Override
protected void doGet(final HttpServletRequest httpServletRequest, final HttpServletResponse httpServletResponse) throws ServletException, IOException {
httpServletResponse.setContentType("application/pdf");
httpServletResponse.setStatus(HttpServletResponse.SC_OK);
final ServletOutputStream servletOutputStream = httpServletResponse.getOutputStream();
servletOutputStream.write(getPDF());
servletOutputStream.flush();
servletOutputStream.close();
private byte[] getPDF() {
try {
   Environment.registerDestinationDataProvider(new MyDestination());
   final JCoDestination destination = JCoDestinationManager.getDestination(destinations.Id.sapdev2.name());
   final JCoRepository repository = destination.getRepository();
   final JCoFunction function = repository.getFunction("Y_R_EITAN_TESTS_03");
   function.execute(destination);
   final byte[] byteArray = function.getExportParameterList().getByteArray("BIN_FILE");
   return byteArray;
} catch (final JCoException exception) {
   exception.printStackTrace();
   return null;

Coverting java .class files to .bin files

Dear all :
I am in a need to convert a java .class files to binary format file (i.e.) bin i mean an executable files in Linux.
Is there any possibility using JNI or anyother method to achieve it.
Please post me your suggestions...
Thanks in advance
hope my problem will be solved.
regards
silviya

I can help on this subject, I heard about some
programs that can convert the .exe files to .bin
files, so you can go and search for such programs, if
you hava found them you should go to the following
URL:
http://www.ej-technologies.com/products/exe4j/overv
iew.html
so you can get the exe4j program which
can made exe files for Java programs then after
installing the program you must enter the license key
and the user name and the company name, user name and
company name can be anything you want, but the
license key must be a valid license key here I'm
giving you one of them and I hope it will work
successfully: ( A-XVK103616F-3jpbhxrlcljd )
after that you should declare a .exe file for your
project in java after that you must use the
exe2bin program to convert the .exe
file to a .bin file and I hope that you will be
successful in your target.
And I'm ready to help you anytime, cause you seems to
be a good girl trying hard to learn and be successful
person in this life.i did as u said n i got a problem after i convert jar file to exe....i can't find any program which can convert .exe file to .bin file can u give me any suggestion

How to convert from xml file to html using java code

How to convert from xml file to html file using java code

Get yourself Apache Xalan or Saxon or some XSLT processor
String styleSheet = "/YourXSLTStylesheet.xsl";
String dataSource = "/YourXMLDocument.xml";
InputStream stylesheetSource = TransformMe.class.getResourceAsStream(styleSheet);
InputStream dataSourceStream = TransformMe.class.getResourceAsStream(dataSource);
OutputStream transformedOut = new FileOutputStream("filename.html");
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer(new StreamSource(stylesheetSource));
transformer.transform(new StreamSource(dataSourceStream), new StreamResult(transformedOut));You'll also need to learn XSLT if you don't already know that. Here's a good place to start
http://www.w3schools.com/xsl/

How to Convert a .class file into exe

I need to convert a .class file to exe...
If abybody know ...plz infrom me briefly....
Thanx a lot

I do not know.
I come from china.
[email protected]
Is that suppose to be a racial joke?From his other post, I'm thinking he's actually serious. At first I thought it was just a troll, but even that email address looks correct (sina.com is a popular service in China and I don't expect an average troll to do 'research' like that).

Convert file.class in file.java

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