Appending Text To Start of Java Files

Hello,
I have many Java source files, and I want to insert some text to the beginiing of all these files.
Any ideas how I should go about it ?
Btw, the direcrtory structure is such that, there are only Java files, but distributed under many sub directories.
--Steve

On UNIX/Linux this is a piece of cake ...
1. write a shell script that takes a parameter (being your java filename)
2. In script concatenate the standard text file using the cat command (append output to new file)
cat stdText.txt > tmpFile.java
cat $1 >> tmpFile.java
cp tmpFile.java $1
3. At the command prompt using the fabulous unix 'find' command search for all java files in your source tree and on each one execute your script :
find . -name "*.java" -exec myscript {} \;
4. voila
...but your probably on windows ! I'm sure its possible but I have no other clues. Try using the bash shell thing I know as Cygwin. By the way, I have just hacked this together and would suggest backing everything up before you start doing anything...

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| Moderator advice: | Please read the announcement(s) at the top of the forum listings and the FAQ linked from every page. They are there for a purpose. |
| | Please don't post in threads that are long dead and don't hijack another poster's thread. |
| | Please don't solicit off forum communication by email. |
| Moderator action: | The other four posts you made have been deleted. |
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| Moderator advice: | Please read the announcement(s) at the top of the forum listings and the FAQ linked from every page. They are there for a purpose. |
| | Please don't post in threads that are long dead and don't hijack another poster's thread. |
| | Please don't solicit off forum communication by email. |
| Moderator action: | The other four posts you made have been deleted. |
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javaUser wrote:
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BUG : JDev 10.1.3 SR2 hangs when opening a java files

Hi,
think I've found a bug. I'm using JDev 10.1.3, patched with SR1 & 2, my machine is a Windows XP SP2 box with 1GB mem and Intel Pentium 4 2.60 Ghz with HT.
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Forcing RowMap rebuild
I also disabled ALL extension and removed the jar files in jdev/extension, except the one that was originally included in the 10.1.3 and those that seems related to the service releases.
The file I'm trying to open is done like this:
--- start after this line ---
package com.websiteitalia.jsftest.view.controllers.people.list;
import com.websiteitalia.jsftest.model.list.people.PeopleListUtil;
import com.websiteitalia.jsftest.view.controllers.BaseListBacker;
import com.websiteitalia.weblib.ejb.list.IWSList;
public class PeopleListBacker extends BaseListBacker {
public IWSList getListRemote() throws Exception {
return PeopleListUtil.getList();
--- end before this line ---
I include also an HEX encoding of the file:
00000000h: 70 61 63 6B 61 67 65 20 63 6F 6D 2E 77 65 62 73 ; package com.webs
00000010h: 69 74 65 69 74 61 6C 69 61 2E 6A 73 66 74 65 73 ; iteitalia.jsftes
00000020h: 74 2E 76 69 65 77 2E 63 6F 6E 74 72 6F 6C 6C 65 ; t.view.controlle
00000030h: 72 73 2E 70 65 6F 70 6C 65 2E 6C 69 73 74 3B 0D ; rs.people.list;.
00000040h: 0A 0D 0A 69 6D 70 6F 72 74 20 63 6F 6D 2E 77 65 ; ...import com.we
00000050h: 62 73 69 74 65 69 74 61 6C 69 61 2E 6A 73 66 74 ; bsiteitalia.jsft
00000060h: 65 73 74 2E 6D 6F 64 65 6C 2E 6C 69 73 74 2E 70 ; est.model.list.p
00000070h: 65 6F 70 6C 65 2E 50 65 6F 70 6C 65 4C 69 73 74 ; eople.PeopleList
00000080h: 55 74 69 6C 3B 0D 0A 69 6D 70 6F 72 74 20 63 6F ; Util;..import co
00000090h: 6D 2E 77 65 62 73 69 74 65 69 74 61 6C 69 61 2E ; m.websiteitalia.
000000a0h: 6A 73 66 74 65 73 74 2E 76 69 65 77 2E 63 6F 6E ; jsftest.view.con
000000b0h: 74 72 6F 6C 6C 65 72 73 2E 42 61 73 65 4C 69 73 ; trollers.BaseLis
000000c0h: 74 42 61 63 6B 65 72 3B 0D 0A 69 6D 70 6F 72 74 ; tBacker;..import
000000d0h: 20 63 6F 6D 2E 77 65 62 73 69 74 65 69 74 61 6C ; com.websiteital
000000e0h: 69 61 2E 77 65 62 6C 69 62 2E 65 6A 62 2E 6C 69 ; ia.weblib.ejb.li
000000f0h: 73 74 2E 49 57 53 4C 69 73 74 3B 0D 0A 0D 0A 0D ; st.IWSList;.....
00000100h: 0A 70 75 62 6C 69 63 20 63 6C 61 73 73 20 50 65 ; .public class Pe
00000110h: 6F 70 6C 65 4C 69 73 74 42 61 63 6B 65 72 20 65 ; opleListBacker e
00000120h: 78 74 65 6E 64 73 20 42 61 73 65 4C 69 73 74 42 ; xtends BaseListB
00000130h: 61 63 6B 65 72 20 7B 0D 0A 20 20 20 20 0D 0A 20 ; acker {..    ..
00000140h: 20 20 20 70 75 62 6C 69 63 20 49 57 53 4C 69 73 ; public IWSLis
00000150h: 74 20 67 65 74 4C 69 73 74 52 65 6D 6F 74 65 28 ; t getListRemote(
00000160h: 29 20 74 68 72 6F 77 73 20 45 78 63 65 70 74 69 ; ) throws Excepti
00000170h: 6F 6E 20 7B 0D 0A 20 20 20 20 20 20 20 20 72 65 ; on {..        re
00000180h: 74 75 72 6E 20 50 65 6F 70 6C 65 4C 69 73 74 55 ; turn PeopleListU
00000190h: 74 69 6C 2E 67 65 74 4C 69 73 74 28 29 3B 0D 0A ; til.getList();..
000001a0h: 20 20 20 20 7D 0D 0A 20 20 20 20 0D 0A 7D 0D 0A ; }.. ..}..
Note the last empty line before the end-of-file. If I try to past this code into a Java file and open it in JDev, it hangs as described.
Moreover, if I remove the last empty line, JDev will open the file in the editor but, as soon as I enter it again (placing the cursor at the end of the file a hitting enter) JDev hangs again.
A final note: I experienced many hangs also in JSP editor, especially selecting a block of text and pasting something in its place, but don't know if the two behaviours are related.

Ok, maybe I've tracked down at least one factor that makes JDev hang. I changed my font back to the default "DialogInput" instead of "Lucida Console" and now it opens my file.
This is the settings that works in system/oracle.jdeveloper.10.1.3.36.73/preferences.xml
<Item>
<Key>FontSizeOptions</Key>
<Value class="oracle.ide.ceditor.options.FontSizeOptions">
<fontFamily>DialogInput</fontFamily>
<fontSize>12</fontSize>
<showOnlyFixedWidth>false</showOnlyFixedWidth>
</Value>
</Item>
With this one it hangs:
<Item>
<Key>FontSizeOptions</Key>
<Value class="oracle.ide.ceditor.options.FontSizeOptions">
<fontFamily>Lucida Console</fontFamily>
<fontSize>12</fontSize>
<showOnlyFixedWidth>false</showOnlyFixedWidth>
</Value>
</Item>
Logging the exception
Exception occurred updating RowMap: 16
startRow: 0
numRows: 1
startLine: 0
numLines: 15
_rowCount: 15
lineCount: 15
Stack trace follows
java.lang.ArrayIndexOutOfBoundsException: 16
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     at oracle.javatools.editor.BasicView$LineRowMap.recalculateLineWidths(BasicView.java:3576)
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     at javax.swing.JComponent.getPreferredSize(JComponent.java:1615)
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     at oracle.javatools.editor.gutter.LineGutterPlugin.getRowCount(LineGutterPlugin.java:1485)
     at oracle.javatools.editor.gutter.LineGutterPlugin.getPreferredSize(LineGutterPlugin.java:890)
     at java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:690)
     at java.awt.Container.preferredSize(Container.java:1558)
     at java.awt.Container.getPreferredSize(Container.java:1543)
     at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
     at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:78)
     at java.awt.Container.preferredSize(Container.java:1558)
     at java.awt.Container.getPreferredSize(Container.java:1543)
     at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
     at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:717)
     at java.awt.Container.layout(Container.java:1401)
     at java.awt.Container.doLayout(Container.java:1390)
     at java.awt.Container.validateTree(Container.java:1473)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validateTree(Container.java:1480)
     at java.awt.Container.validate(Container.java:1448)
     at java.awt.Window.show(Window.java:515)
     at oracle.ideimpl.MainWindowImpl.show(MainWindowImpl.java:572)
     at java.awt.Component.show(Component.java:1300)
     at java.awt.Component.setVisible(Component.java:1253)
     at oracle.ideimpl.MainWindowImpl$2.runImpl(MainWindowImpl.java:773)
     at oracle.javatools.util.SwingClosure$1Closure.run(SwingClosure.java:50)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Forcing RowMap rebuild

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.?

JFileChooser problem opening just java files

Hi everyone, trying to write simple text ed. that will only open java files (part of JFileChooser). Yes have looked at API but so stupid that i couldnt get it to work can anyone help?
public void openFile() {
          BufferedReader in = null;
          try {
               JFileChooser chooser = new JFileChooser();
               //---Open Java Files only---
               if (chooser.showOpenDialog(null)
               == JFileChooser.APPROVE_OPTION) {
               File selectedFile = chooser.getSelectedFile();
               in = new BufferedReader
                         (new FileReader(selectedFile));
     catch(FileNotFoundException e) {
          JOptionPane.showMessageDialog
               (null, "Bad Filename. Try Again");
     catch(IOException e) {
          JOptionPane.showMessageDialog
               (null, "Corrupted File. Try Again");
     finally {
          if (in != null)
               try {
                    StringBuffer buffer = new StringBuffer();
                    String text = new String();
                    text_chat.setText(text + "\n\n");
                    while((text=in.readLine())!=null)
                         buffer.append(text+ "\n");
                    text_chat.setText(buffer.toString());
               catch(IOException e) {
                    JOptionPane.showMessageDialog
                         (null, "Error closing File.");
}

Can you tell me how did you solve the problem? Right now I am encounter ing the same problem. The java files on JFileChooser did not show up!

Open a java file from c#

Does anyone know if it's possible to open a java file from a c# web form?
Any links would also be appreciated,
Thanks,
Clivert

I don't know anything about C# web forms (that's pretty far away from the topic of this forum) but I expect anybody answering the question would need to know what you mean by "open" and "a java file" in that context.
For example it might mean to cause a text editor to run and display the source code for a Java class. Or it might mean for a Java JVM to start running and execute the main method of a Java class.

I am trying to use java file as Model layer and jsf as presentation layer

I am trying to use java file as Model layer and jsf as presentation layer and need some help
I successfully get the value of h:outputText from java file by doing simple binding operation but I am facing problems when I am trying to fill h:dataTable
I create java file
package oracle.model;
import java.sql.;*
import java.util.;*
*public class TableBean {*
Connection con ;
Statement ps;
ResultSet rs;
private List perInfoAll = new ArrayList();
*public List getperInfoAll() {*
perInfoAll.add(0,new perInfo("name","username","blablabla"));
return perInfoAll;
*public class perInfo {*
String uname;
String firstName;
String lastName;
*public perInfo(String firstName,String lastName,String uname) {*
this.uname = uname;
this.firstName = firstName;
this.lastName = lastName;
*public String getUname() {*
return uname;
*public String getFirstName() {*
return firstName;
*public String getLastName() {*
return lastName;
right click on the file and choose 'create data control'
then i wrote the jsf file:
*<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>*
*<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>*
*<f:view>*
*<h:dataTable id="dt1" value="#{bindings.perInfoAll}"*
var="item" bgcolor="#F1F1F1" border="10"
cellpadding="5" cellspacing="3" rows="4" width="50%"
dir="LTR" frame="hsides" rules="all"
*>*
*<f:facet name="header">*
*<h:outputText value="This is 'dataTable' demo" id="ot6"/>*
*</f:facet>*
*<h:column id="c2">*
*<f:facet name="header">*
*<h:outputText value="First Name" id="ot1"/>*
*</f:facet>*
*<h:outputText style="" value="#{item.firstName}"*
id="ot2"/>
*</h:column>*
*<h:column id="c4">*
*<f:facet name="header">*
*<h:outputText value="Last Name" id="ot9"/>*
*</f:facet>*
*<h:outputText value="#{item.lastName}" id="ot8"/>*
*</h:column>*
*<h:column id="c3">*
*<f:facet name="header">*
*<h:outputText value="Username" id="ot7"/>*
*</f:facet>*
*<h:outputText value="#{item.uname}" id="ot4"/>*
*</h:column>*
*<f:facet name="footer">*
*<h:outputText value="The End" id="ot3"/>*
*</f:facet>*
*</h:dataTable>*
*</center>*
*</af:document>*
*</f:view>*
but nothing is appear in my table
I know that there is something wrong in calling the binding object
I need help pls and where can i find some help to deal with another tag types
thanks

i dragged the "perInfoAll" from my "Data Controls" and choosed adf table (even I know that new table with adf tags well be generated and i want table with jsf tags)
and this code is generated
*<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"*
*"http://www.w3.org/TR/html4/loose.dtd">*
*<%@ page contentType="text/html;charset=UTF-8"%>*
*<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>*
*<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>*
*<%@ taglib uri="http://xmlns.oracle.com/adf/faces/rich" prefix="af"%>*
*<f:view>*
*<af:document id="d1">*
*<af:messages id="m1"/>*
*<af:form id="f1">*
*<af:table value="#{bindings.perInfoAll1.collectionModel}" var="row"*
*rows="#{bindings.perInfoAll1.rangeSize}"*
*emptyText="#{bindings.perInfoAll1.viewable ? 'No data to display.' : 'Access Denied.'}"*
*fetchSize="#{bindings.perInfoAll1.rangeSize}"*
*rowBandingInterval="0"*
*selectionListener="#{bindings.perInfoAll1.collectionModel.makeCurrent}"*
*rowSelection="multiple" id="t1">*
*<af:column sortProperty="uname" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.uname.label}"*
*id="c1">*
*<af:inputText value="#{row.bindings.uname.inputValue}"*
*label="#{bindings.perInfoAll1.hints.uname.label}"*
*required="#{bindings.perInfoAll1.hints.uname.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.uname.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.uname.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.uname.tooltip}"*
*id="it3">*
*<f:validator binding="#{row.bindings.uname.validator}"/>*
*</af:inputText>*
*</af:column>*
*<af:column sortProperty="firstName" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.firstName.label}"*
*id="c2">*
*<af:inputText value="#{row.bindings.firstName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.firstName.label}"*
*required="#{bindings.perInfoAll1.hints.firstName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.firstName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.firstName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.firstName.tooltip}"*
*id="it2">*
*<f:validator binding="#{row.bindings.firstName.validator}"/>*
*</af:inputText>*
*</af:column>*
*<af:column sortProperty="lastName" sortable="false"*
*headerText="#{bindings.perInfoAll1.hints.lastName.label}"*
*id="c3">*
*<af:inputText value="#{row.bindings.lastName.inputValue}"*
*label="#{bindings.perInfoAll1.hints.lastName.label}"*
*required="#{bindings.perInfoAll1.hints.lastName.mandatory}"*
*columns="#{bindings.perInfoAll1.hints.lastName.displayWidth}"*
*maximumLength="#{bindings.perInfoAll1.hints.lastName.precision}"*
*shortDesc="#{bindings.perInfoAll1.hints.lastName.tooltip}"*
*id="it1">*
*<f:validator binding="#{row.bindings.lastName.validator}"/>*
*</af:inputText>*
*</af:column>*
*</af:table>*
*</af:form>*
*</af:document>*
*</f:view>*
but when run it i see the following errors
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
*Class oracle.adf.model.adapter.bean.BeanDataControl can not access a member of class nl.amis.hrm.EmpManager with modifiers "private"*
*Object EmpManager of type DataControl is not found.*
*java.lang.NullPointerException*
:(

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