Simple java compiler for win

I used the javac command in dos mode to compile my .java files , but in my recent program i have so many errors that they dont fit into the dos screen(in dos mode i cannot move up and down!).
Is there any simple compiler for windows(or GUI) that could solve my problem?

If you haven't done this already you can right click on your Dos Prompt icon and go to properties, then go to Screen, then change the initial size of your prompt to the largest it will go, (50 lines I think). That might give you a little more room...

Similar Messages

Creating a simple java client for a session EJB local interface

Hi all
Is it possible to create a simple java client for a session ejb local interface with JDeveloper.
The problem is that it creates a test client for a remote interface only...
i.e.
MySessionEJB sessionEJB = context.lookup("MySessionEJB")
and once i try to adjust it manually for the local interface...
MySessionEJBLocal sessionEJB = (MySessionEJBLocal) context.lookup("MySessionEJBLocal") (MySessionEJBLocal - is the name of my local interface)
it generates the exception:
javax.naming.NotFoundException: SessionEJBLocal not found
at...........................(RMIClientContext.java:52)
There is still no problem with accessing the local interface object from the jsf project where i've added <ejb-local-ref> tag into the web.xml file.
but i need the possibility of testing the simple java client for the local interface to test business methods wich should return objects without indirect properties
Thanks in advance.
Alex.

Pedja thanks for reply.
I still dont understand what is wrong with my example.
The first peace of the code i wrote (getting the reference to the remote interface object) works pretty well, and even more it is produced automatically by JDeveloper, so why we cant get a reference to the local interface object the same way?
Certanly we should use the local interface for getting access to the resource functioning under the same local jvm and i think it doesnt metter wich app server we really use wls or oas or others
Thanks. Alex.

Replicating simple Java objects for automatic failover

Is there a way to replicate a simple java object that is bound from JNDI
          across all servers so that if the primary server fails, it will
          automatically failover?
          We have a java client that uses JNDI to access EJBs on WLS5.1 SP8. In order
          to determine client information, the client currently binds a simple java
          class in the JNDI tree. The Entity and Session beans use the caller
          principal to locate the object in order to access client-information for
          such things as record locking, logging, etc..
          We have to move this architecture to a cluster environment and we are
          wondering how we can replicate this object across cluster servers so that
          failover is handled automatically, and that it is still accessible through
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          An RMI replicated stub is not enough, since it only works as long as the
          server hosting the RMI object is alive.
          I'd like to add that the object is created and bound at client start-up and
          destroyed at client exit.
          Thank you for any advice or information,
          Dania Kodeih.


A: Replicating simple Java objects for automatic failover

That's what I figured. I guess the only solution in this case is to persist
          the object during client sessions. I was hoping for something simpler, but I
          guess I'll have to create an Entity Bean and everything else that comes with
          it.
          Thanks,
          Dania.
          Cameron Purdy wrote in message <[email protected]>...
          >Unfortunately, when the originating server goes down, the replicated object
          >disappears.
          >
          >Peace,
          >
          >--
          >Cameron Purdy
          >Tangosol, Inc.
          >http://www.tangosol.com
          >+1.617.623.5782
          >WebLogic Consulting Available
          >
          >
          >"Don Ferguson" <[email protected]> wrote in message
          >news:[email protected]..
          >> If I am not mistaken, any serializable object will automatically be
          >replicated
          >> across the tree.
          >>
          >> Dania Kodeih wrote:
          >>
          >> > Is there a way to replicate a simple java object that is bound from
          JNDI
          >> > across all servers so that if the primary server fails, it will
          >> > automatically failover?
          >> >
          >> > We have a java client that uses JNDI to access EJBs on WLS5.1 SP8. In
          >order
          >> > to determine client information, the client currently binds a simple
          >java
          >> > class in the JNDI tree. The Entity and Session beans use the caller
          >> > principal to locate the object in order to access client-information
    �... [Show more]
Read other 4 answers

Simple java class for SQL like table?

Dear Experts,
I'm hoping that the java people here at the Oracle forums will be able to help me.
I've worked with Oracle and SQL since the 90s.
Lately, I'm learning java and doing a little project in my spare time.
It's stand alone on the desktop.
The program does not connect to any database
(and a database is not an option).
Currently, I'm working on a module for AI and decision making.
I like the idea of a table in memory.
Table/data structure with Row and columns.
And the functionality of:
Select, insert, update, delete.
I've been looking at the AbstractTableModel.
Some of the best examples I've found online (they actually compile and work) are:
http://www.java2s.com/Code/Java/Swing-JFC/extendsAbstractTableModeltocreatecustommodel.htm
http://tutiez.com/simple-jtable-example-using-abstracttablemodel.html
Although they are rather confusing.
In all the examples I find, there always seems to be
at least three layers of objects:
Data object (full of get/set methods)
AbstractTableModel
GUI (JFrame, JTable) (GUI aspect I don't need or want)
In all the cases I've seen online, I have yet to see an example
that has the equivalent of Delete or Insert.
Just like in SQL, I want to define a table with columns.
Insert some rows. Update. Select. Delete.
Question:
Is there a better java class to work with?
Better, in terms of simpler.
And, being able to do all the basic SQL like functions.
Thanks a lot!

Hi Timo,
Thanks. yes I had gone thru the java doc already and they have mentioned to use java.sql.Struct, but the code which got generated calls constructor of oracle.jpub.runtime.MutableStruct where it expects oracle.sql.STRUCT and not the java.sql.STRUCT and no other constructor available to call the new implementation and that is the reason i sought for some clues.
protected ORAData create(CmnAxnRecT o, Datum d, int sqlType) throws SQLException
    if (d == null) return null;
    if (o == null) o = new CmnAxnRecT();
    o._struct = new MutableStruct((STRUCT) d, _sqlType, _factory);
    return o;
here CmnAxnRecT is the class name of the generated java class for sqlType.
Thanks again. Please let me know if you have any more clues.
Regards,
Vinothgan AS

Simple Java Example for DI API

Hello,
I have a Java Application and would like to connect to a SAP BO Database using JCO and DI API.
I want a simple java example that just connects to the BO Database and returns an item name or value or a recordset from the database.
Since i dont have the names of what kind of fields, items , tables exist in the SAP BO Demo database i need a basic example to make sure that i can connect to the database and retrieve data from the DB.
Any help in this regard would be appreciated...
Amit

Dear Amit Hingher,
The B1 JCO is a java wrapper for DI API so basically you could refer to DI help for all objects, methods and properties.
Here the jave sample for connection function:
package test;
import com.sap.smb.sbo.api.*;
public class ConnectSAP {
     // company interface
     public ICompany company;
     private SBOErrorMessage errMsg = null;
     public static void main(String[] args) {
          ConnectSAP company = new ConnectSAP();
          company.conn();
     //method make connection andinitialize company instance
     public int conn() {
          int rc = 0;
          try {
               company = SBOCOMUtil.newCompany();
               company.setServer("(local)");
               company.setCompanyDB("test");
               company.setUserName("manager");
               company.setPassword("manager");
               company.setDbServerType(...);
               company.setUseTrusted(new Boolean(false));
               company.setLanguage(SBOCOMConstants.BoSuppLangs_ln_English);
               company.setDbUserName("Sa");
               company.setDbPassword("123");
               company.setAddonIdentifier("...");
               company.setLicenseServer("...");
               rc = company.connect();
               if (rc == 0) {
                    System.out.println("Connected!");
               } else {
                    errMsg = company.getLastError();
                    System.out.println(
                         "I cannot connect to database server: "
                              + errMsg.getErrorMessage()
                              + " "
                              + errMsg.getErrorCode());
          } catch (Exception e) {
               e.printStackTrace();
               return -1;
          return rc;
     public void freeConnection(){
          company.disconnect();
Best Regards
Jane Jing
SAP Business One Forums team

Java compiler for the mac

Can anyone tell me where i can get an compiler for the mac os x?

if you have downloaded the latest java release from apple (using the update module) you should have java 1.5 by now... On a mac you can compile using the terminal...
voyx

Java Compiler for MAC OS X & Linux

Greetings:
I could use a recommendation for a JAVA compiler.
Any help is appreciated.
Q1: For Mac OS X, what is a recommended Java compiler / JDK ?
Q2: Can I program and compile a Java program with the Xcode platform? If so, how?
(fyi: did notice there isn't a JAVA library like C++...but there probably is one out there)
Q3: For Linux OS, what is a recommended Java compiler? (probably the same as Mac)
If you have a website for downloading a compiler and / or Java Library for X code, toss it my way.
Thank you for your time.
Cheers,
Shockwave

The javac compiler is installed in /System/Library/Frameworks/JavaVM.framework/Commands/. On my machine it's also installed in /usr/bin/javac.
The java libraries in /System/Library/Frameworks/JavaVM.framework/Libraries/ then there are others in /usr/lib/java/.
I believe that you can use Xcode as an IDE for java or download Eclipse. Then again the Terminal.app (your shell), vi or emacs, and the javac command will get you going.

What Java compiler for Java Card development ?

What Java compiler and options should be used for Java Card development with the goal of generating correct, and (secondarily) small or/and fast code after conversion to Java Card bytecode using converter ?
In particular
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What Java compiler and options should be used for Java Card development with the goal of generating correct, and (secondarily) small or/and fast code after conversion to Java Card bytecode using converter ?-target -source may be required to generate compatible byte code. Depending on the CAP file converter being used debug information may also help. Remember that Java Card is a subset of the Java language (also there are short opcodes that Java doesn't have etc) so a lot of the work for optimisation is done by the converter or the JCRE. You can look at the JCA code generated to determine what works best for your applets. There are also some ways of stripping out dead code etc from JCA files (return statements after a throw etc) to reduce your code size. Most of the speed optimisations come from your code (avoiding context switches and unnecessary security/access checks).
The compactness of your Java Card binary may not be directly related to the size of your compiled Java code. It can depend on the converter you use and any optimisaitons the JCRE might try to do when the code is loaded.
- Is use of JDK 7 approved by Oracle for Java Card development? That would solve security problems associated with (the web components of the JRE of) some earlier JDK, including the latest JDK6. Java Card does not use any of the libraries from the JDK/JRE. All of the libraries are provided by the JCRE on the smartcard.
The JCDK 3.0.4 release notes states "+the commercial version of Java Development Kit (JDK software) version 6 Update 10 (JDK 6 Update 10) or later is required+, but that does not answer that question.Anything above JDK6u10 is supported. If you use Java 7 you may need to add a -source and -target flag when compiling.
- Anyone had _bad_ experience (like incorrect or disastrous code) with the Java compiler bundled with Eclipse ? I have seen at least one case where org.eclipse.jdt.core_3.7.3.v20120119-1537.jar produced slightly more compact code than javac.We generally use the Eclipse compiler as we find that we get more deterministic builds. When CAP files are sent for security review it is helpful to have the reviewer able to generate a CAP file that matches the one you sent to confirm the binary is what you say it is.
- Anyone had _bad_ experience with javac in jdk1.3 ? In an applet involving a "finally" clause, I've seen it generating more compact code than later javac (which in my test triplicated the code for the finally clause).We do not use anything less than Java 6 for compilation.
- Shane

Creating a SIMPLE Java APPLET for a HTML website

Hello!
I was wondering if anyone can help me.
i have designed a very simple HTML website and wanted to make an applet.
which program would be best (eclipse, blue j...etc)
and how do i go about it!
i am very new to this and would appriciate the help
many thanks in advance

sabre150 wrote:
gimbal2 wrote:
your brain to do all the hard work. It needs to be preloaded with knowledge of programming, the Java language, the Java platform and the Java plugin relating to applets before it will work.So that's where I have been going wrong!Lies, I know for a fact that you know a thing or two. What are you trying to do here? Hide from your responsibilities as a knowledgeable person?

Fonts in java apps for win and linux

Hi everyone.
i need to build an application mult-plataform, to run in windows and linux...
but i don�t know waht font i must use...the default font that java takes doesn�t exist in linux (dialog)...
waht font should i use in my app??
thanx

For going multi-platform it is easiest to stick to the logical fonts: Fonts named "Serif", "SansSerif", "Monospaced", "Dialog", and "DialogInput".
These fonts are guaranteed to exist on any platform, although their implementations may be different. If you use others then you'll have to figure out how to deal with cross platform issues.
Jeff

Example code for java compiler with a simple GUI

There is no question here (though discussion of the code is welcome).
/* Update 1 */
Now available as a stand alone or webstart app.! The STBC (see the web page*) has its own web page and has been improved to allow the user to browse to a tools.jar if one is not found on the runtime classpath, or in the JRE running the code.
* See [http://pscode.org/stbc/].
/* End: Update 1 */
This simple example of using the JavaCompiler made available in Java 1.6 might be of use to check that your SSCCE is actually what it claims to be!
If an SSCCE claims to display a runtime problem, it should compile cleanly when pasted into the text area above the Compile button. For a compilation problem, the code should show the same output errors seen in your own editor (at least until the last line of the output in the text area).
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.EventQueue;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.SwingWorker;
import javax.swing.border.EmptyBorder;
import java.util.ArrayList;
import java.net.URI;
import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import javax.tools.ToolProvider;
import javax.tools.JavaCompiler;
import javax.tools.SimpleJavaFileObject;
/** A simple Java compiler with a GUI. Java 1.6+.
@author Andrew Thompson
@version 2008-06-13
public class GuiCompiler extends JPanel {
/** Instance of the compiler used for all compilations. */
JavaCompiler compiler;
/** The name of the public class. For 'HelloWorld.java',
this would be 'HelloWorld'. */
JTextField name;
/** The source code to be compiled. */
JTextArea sourceCode;
/** Errors and messages from the compiler. */
JTextArea output;
JButton compile;
static int pad = 5;
GuiCompiler() {
    super( new BorderLayout(pad,pad) );
    setBorder( new EmptyBorder(7,4,7,4) );
/** A worker to perform each compilation. Disables
the GUI input elements during the work. */
class SourceCompilation extends SwingWorker<String, Object> {
    @Override
    public String doInBackground() {
      return compileCode();
    @Override
    protected void done() {
      try {
        enableComponents(true);
      } catch (Exception ignore) {
/** Construct the GUI. */
public void initGui() {
    JPanel input = new JPanel( new BorderLayout(pad,pad) );
    Font outputFont = new Font("Monospaced",Font.PLAIN,12);
    sourceCode = new JTextArea("Paste code here..", 15, 60);
    sourceCode.setFont( outputFont );
    input.add( new JScrollPane( sourceCode ),
      BorderLayout.CENTER );
    sourceCode.select(0,sourceCode.getText().length());
    JPanel namePanel = new JPanel(new BorderLayout(pad,pad));
    name = new JTextField(15);
    name.setToolTipText("Name of the public class");
    namePanel.add( name, BorderLayout.CENTER );
    namePanel.add( new JLabel("Class name"), BorderLayout.WEST );
    input.add( namePanel, BorderLayout.NORTH );
    compile = new JButton( "Compile" );
    compile.addActionListener( new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
          (new SourceCompilation()).execute();
    input.add( compile, BorderLayout.SOUTH );
    this.add( input, BorderLayout.CENTER );
    output = new JTextArea("", 5, 40);
    output.setFont( outputFont );
    output.setEditable(false);
    this.add( new JScrollPane( output ), BorderLayout.SOUTH );
/** Compile the code in the source input area. */
public String compileCode() {
    output.setText( "Compiling.." );
    enableComponents(false);
    String compResult = null;
    if (compiler==null) {
      compiler = ToolProvider.getSystemJavaCompiler();
    if ( compiler!=null ) {
      String code = sourceCode.getText();
      String sourceName = name.getText().trim();
      if ( sourceName.toLowerCase().endsWith(".java") ) {
        sourceName = sourceName.substring(
          0,sourceName.length()-5 );
      JavaSourceFromString javaString = new JavaSourceFromString(
        sourceName,
        code);
      ArrayList<JavaSourceFromString> al =
        new ArrayList<JavaSourceFromString>();
      al.add( javaString );
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      OutputStreamWriter osw = new OutputStreamWriter( baos );
      JavaCompiler.CompilationTask task = compiler.getTask(
        osw,
        null,
        null,
        null,
        null,
        al);
      boolean success = task.call();
      output.setText( baos.toString().replaceAll("\t", " ") );
      compResult = "Compiled without errors: " + success;
      output.append( compResult );
      output.setCaretPosition(0);
    } else {
      output.setText( "No compilation possible - sorry!" );
      JOptionPane.showMessageDialog(this,
        "No compiler is available to this runtime!",
        "Compiler not found",
        JOptionPane.ERROR_MESSAGE
      System.exit(-1);
    return compResult;
/** Set the main GUI input components enabled
according to the enable flag. */
public void enableComponents(boolean enable) {
    compile.setEnabled(enable);
    name.setEnabled(enable);
    sourceCode.setEnabled(enable);
public static void main(String[] args) throws Exception {
    Runnable r = new Runnable() {
      public void run() {
        JFrame f = new JFrame("SSCCE text based compiler");
        f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        GuiCompiler compilerPane = new GuiCompiler();
        compilerPane.initGui();
        f.getContentPane().add(compilerPane);
        f.pack();
        f.setMinimumSize( f.getSize() );
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    EventQueue.invokeLater(r);
* A file object used to represent source coming from a string.
* This example is from the JavaDocs for JavaCompiler.
class JavaSourceFromString extends SimpleJavaFileObject {
* The source code of this "file".
final String code;
* Constructs a new JavaSourceFromString.
* @param name the name of the compilation unit represented
    by this file object
* @param code the source code for the compilation unit
    represented by this file object
JavaSourceFromString(String name, String code) {
    super(URI.create(
      "string:///" +
      name.replace('.','/') +
      Kind.SOURCE.extension),
      Kind.SOURCE);
    this.code = code;
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
    return code;
}Edit 1:
Added..
        f.setMinimumSize( f.getSize() );Edited by: AndrewThompson64 on Jun 13, 2008 12:24 PM
Edited by: AndrewThompson64 on Jun 23, 2008 5:54 AM

kevjava wrote: Some things that I think would be useful:
Suggestions reordered to suit my reply..
kevjava wrote: 2. Line numbering, and/or a line counter so you can see how much scrolling you're going to be imposing on the forum readers.
Good idea, and since the line count is only a handful of lines of code to implement, I took that option. See the [line count|http://pscode.org/stbc/help.html#linecount] section of the (new) [STBC Help|http://pscode.org/stbc/help.html] page for more details. (Insert plaintiff whining about the arbitrary limits set - here).
I considered adding line length checking, but the [Text Width Checker|http://pscode.org/twc/] ('sold separately') already has that covered, and I would prefer to keep this tool more specific to compilation, which leads me to..
kevjava wrote: 1. A button to run the code, to see that it demonstrates the problem that you wish for the forum to solve...
Interesting idea, but I think that is better suited to a more full blown (but still relatively simple) GUId compiler. I am not fully decided that running a class is unsuited to STBC, but I am more likely to implement a clickable list of compilation errors, than a 'run' button.
On the other hand I am thinking the clickable error list is also better suited to an altogether more abled compiler, so don't hold your breath to see either in the STBC.
You might note I have not bothered to update the screenshots to show the line count label. That is because I am still considering error lists and running code, and open to further suggestion (not because I am just slack!). If the screenshots update to include the line count but nothing else, take that as a sign. ;-)
Thanks for your ideas. The line count alone is worth a few Dukes.

How to run a java program without Java Compiler

I have a small project and I want share it with my friends but my friend'pc have not
Java compiler.
for example, I writen a application like YM, then 2cp can sent,receive messege. My cumputer run as Server, and my frien PC run as client.
How can my friend run it? or how to create an icon in dektop tu run a java program..??..
(sorry about my English but U still understand what i mean (:-:)) )

To run a program you don't need a Java compiler. Just the Java Runtime Engine. That can be downloaded from the Sun website and comes with an installer.
You could then turn your application into an executable jar file and start it somehow like jar myYM.
There is also software that packs a Java program into an executable file. I've never used that but one that comes to my mind is JexePack. It's for free if you can live with a copyright message popping up every time you start the program.
http://www.duckware.com/jexepack/index.html

Oracle java compiler

Hi everyone,
I just wanted to create a new Project Build-Script as I stumbled upon this Checkbox (for auto-generating my Script):
"use oracle java compiler for javac task"
Can anybody tell me where I find a list of features this compiler provides in comparison to my normal compiler. (I tried JDev, Google and here...)
Are there any profits with using ADF / Business Components?
Hay.

Hay,
If you are using JDev 10g - you need to use OCJ to get some of the profiling aspects; less of a reason to use OJC in 11g.
John

Java Bean for Marquee or scrolling text

Can anybody help to make the simple java bean for scrolling a text in ORacle forms 10g?
Regards
Omama Khurshid

Please help me and send it to my mail.
[email protected]

Problem compiling a simple java file

Hi,
When I try to compile the following simple java file
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HowdyServlet extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
PrintWriter out = response.getWriter();
response.setContentType("text/html");
out.println("<html>");
out.println("<body>");
out.println("<center><h1>Hi</h1></center>");
out.println("</body>");
out.println("</html>");
at the command prompt as follows
C:\Shared\CBT\Java 2 JSP and Java Servlets\03\servlet1>javac -classpath
"C:\Program Files\Java\j2re1.4.2_03\lib\ext\QTJava.zip" *.java
Or
C:\Shared\CBT\Java 2 JSP and Java Servlets\03\servlet1>javac *.java
Or
C:\Shared\CBT\Java 2 JSP and Java Servlets\03\servlet1>javac HowdyServlet.java
I get the following errors and I cannot compile this java file -
HowdyServlet.java:2: package javax.servlet does not exist
import javax.servlet.*;
^
HowdyServlet.java:3: package javax.servlet.http does not exist
import javax.servlet.http.*;
^
HowdyServlet.java:5: cannot find symbol
symbol: class HttpServlet
public class HowdyServlet extends HttpServlet {
^
HowdyServlet.java:6: cannot find symbol
symbol : class HttpServletRequest
location: class HowdyServlet
public void doGet(HttpServletRequest request,
^
HowdyServlet.java:7: cannot find symbol
symbol : class HttpServletResponse
location: class HowdyServlet
HttpServletResponse response)
^
HowdyServlet.java:8: cannot find symbol
symbol : class ServletException
location: class HowdyServlet
throws IOException, ServletException {
^
6 errors
I have installed the latest JEE 5 SDK on Win XP Home. I have the following variable set as follows,
CLASSPATH = .;C:\Program Files\Java\j2re1.4.2_03\lib\ext\QTJava.zip
PATH = C:\Sun\AppServer\jdk\bin;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Microsoft SQL Server\80\Tools\BINN;C:\Program Files\QuickTime\QTSystem;C:\Sun\AppServer\lib\ant\bin
ANT_HOME = C:\Sun\AppServer\lib\ant
I have spent hours scratching my head but don?t have a clue. I was wondering if you have any idea as why I might be getting these errors.
Thank you for your time.
Green

Hello, did you read the answers?
You have to put j2ee.jar or servlet-api.jar in your classpath. Those JAR files are included in the Java EE package somewhere. Remove the QTJava.zip junk from the classpath.
If you don't know what the classpath is and how to set it, read this:
Setting the class path
How Classes are Found
And I'll repeat what the others say: if you are very new to Java, then Java EE will probably be way over your head. First learn the language and the standard API. If you understand that well, start with Java EE. Or do you already know what servlets are, and that you need a servlet container to run them, and how to deploy them etc.?

Simple java compiler for win

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