Cannot Open Jar File In Eclipse

Feb 27, 2015

i have an older file I was working on 2 months ago and when i try to open it in eclipse I get a message corruption error. I know this is not possible since I was just working on it a while back, and it's the same program version as what i am currently using..Or would I do a file import instead?

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JSP / JSTL :: How To Open CHM File

Sep 13, 2012

Is there a way we can open a .chm file stored at server through jsp application without downloading the file and saving it to the local machine.

What I googled is : we cannot download .chm files from a web browser and simply click Open.  Download the .chm file to your computer first, right-mouse click it in Windows Explorer and select Properties.  Then click Unblock.

But I want my users to simply view the file without downloading it.

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Oct 30, 2014

i dont know how to write main that would open the input file and read using this method...

[/package AssignmentSeven;
import java.io.*;
import java.util.Scanner;
public class Assignment7
{
public static void Towers(int nTowers, int fromTower1, int workTower2, int toTower3) {
if(nTowers == 1)

[code].....

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Jan 13, 2015

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This is for my Minecraft server so I can launch them all at the same time and inStead of having to enter the commands in all the server batch files I just have to do the command in 1 I know their is things like multi craft to do this but I want the code so I don't have to use multicraft.

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Code To Open Up TXT File And Display Only First Five Lines?

Apr 7, 2013

I am trying to write a java code for a homework problem in my intro java class but im having problems. This is the problem:

Write a program that open the MyFile.txt and read from a file with these criteria.

1)-The program should display the first five lines of the file’s contents only.

2)-If the file contains less than five lines, it should display the file’s entire content. You must check for end of file and less than 6 lines on the loop iterations.

3)- your program should use loop to read the line by line of the file MyFile.txt.

The serperate myfile.txt has this

I can still remember, at the end of that year, we sat for the last time in our circle together. She played us her favorite song, "like a bridge over troubled water" and quietly passed out a gift she had made for each of us.She had made each of us a pottery heart with our name and the date on it on the back each read "I believe in ME".We all cried including her. She told us she would always remember US. We believed she would.

and this is what the code is suppose to look like after you run it : Java33.png

And this is what i have so far : Java22.png

what needs to go next to complete the javascript to show the first 5 lines of the text files?

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Aug 1, 2014

In jsp, In windows 7 , IE 11 , I am able to get the downloaded file but still unable to open it.

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Errors When Attempting To Open New Build Jar File

Nov 2, 2014

I have recently taken up some java after a period of time learning batch scripting. the issue I have run into is that my build compiled and ran just

fine when invoking from within the netbeans IDE but after that I 'cleaned and built' the jar and the IDE stored it in the directory that I specified while installing.

I went to that folder, double clicked on my gui and go nothing. So then I opened a command prompt did, "java -jar myapp.jar" and got the following of which has me completely lost:

Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: No Persistence provider for EntityManager named

at javax.persistence.Persistence.createEntityManagerF actory(Persistence.java:85)
at javax.persistence.Persistence.createEntityManagerF actory(Persistence.java:54)
at my.numberaddition.NumberAdditionUI.initComponents( NumberAdditionUI.java:31)
at my.numberaddition.NumberAdditionUI.<init>(NumberAd ditionUI.java:18)

[Code] ....

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Excel Cannot Open File Because Format Or Extension Is Not Valid

Apr 6, 2015

I am currently working on an application with java and I want to do is upload and download details in .xlsx file. Uploading process is successfully worked but the problem is that when I download the file .xlsx with details at opening the file it gives me the following message :

Excel cannot open the file '(filename)'.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file.

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Japplet Open File - Zoom In And Out Buttons For Pictures

Dec 16, 2014

I am trying to make a japplet that has open, zoom in and zoom out buttons for pictures. I am not sure how to go about an open button that will read the file. I have the picture url hard coded in the file to open but would like an open button with a file/folder dialogue.

This is what I have so far

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.event.ActionEvent;

[Code] ......

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Feb 11, 2014

So I am trying to open a file and store the contents into a two dimensional array. I seem to have no problem using this same basic code to read the file and output it. But when I try to change it so that all the data is stored into the array, it does not work.

Java Code:

public void convertFile()
{
String filePath = ("C:UsersBradDownloadsFB1.csv");
String [][] rowCol = new String [429][6];
try
{
BufferedReader br = new BufferedReader(new FileReader(filePath));
StringTokenizer st = null;
System.out.println("Your file is being converted to an array. This may take several minutes.");

[code]....

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Jun 15, 2014

In our currenr project we have a requirement to open a local/network driver file/folder using JSF 2.0 <h:outputLink> in Firefox browser find the below sample code & correct it, how to achieve the above requirment

Sample.xhtml
<h:form>

<h:outputLink id="linkID" value="#{demoDataBean.dataLink}" target="_blank" >
<h:outputLabel value="#{demoDataBean.dataLink}" />
</h:outputLink>

[code]...

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Aug 9, 2014

I'm working on a problem where I have to use the FileInputStream to opens a file that contains the name of a user's favorite book and then displays it.

If the file doesn't exist, then I prompt for the book title and write it to the file using FileOutputStream. This is what I have so far but I'm lost because if I put a file that exists in line 8 then it closes, but if I don't and the user puts their favorite book nothing happens. Or, as far as I can tell nothing does.

import java.io.*;
class DisplayBook {
public static void main(String[] args)

[code]....

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Mar 26, 2014

I am trying to .wav file using java eclipse ..

[B]import java.io.* ;
import sun.audio.*;
 public class AudioDemo{
public static void main(String[] args)
throws Exception

[Code] ....

And I am getting the following errors ...

Exception in thread "main" java.io.FileNotFoundException: E:pppp.wma (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at AudioDemo.main(AudioDemo.java:10)

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Apr 13, 2014

import java.io.*;
public class ReadNumbers
{
void input()
{
String File_name = "num.txt";
File numbers = new File(File_name);
 
[code]....

I am using eclipse and I went to file, add new file and named it num.txt:shot.png like show in the picture.

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May 1, 2014

So I downloaded jgrasp and eclipse on a new computer and am trying to figure out how their filing/path system works.In eclipse I created a new project under which I've imported all my files for my comp sci class, so they're all under this one project which is my only project. I attached a pic of what my eclipse workspace looks like. In this project folder is a file I'm trying to run.

I keep getting an error saying "editor" does not contain a main type.When I change my class name to the project folder I end up getting an option to run the program as an applet or an application, but either one I choose I get the same error message. In the bottom it gives me a warning saying

DescriptionResourcePathLocationType
Build path specifies execution environment CDC-1.1/Foundation-1.1. There are no JREs installed in the workspace that are strictly compatible with this environment. CS1050AssignmentsBuild pathJRE System Library Problem

I tried running the program in jgrasp and got this error

----jGRASP wedge2 error: command "javac" not found.
---- This command must be in the current working directory or
---- on the current system PATH or jGRASP PATH to use this function.
---- System + jGRASP PATH is "C:UsersQudrat.MommandiDocuments;C:Windowssystem32;C:Program Files (x86)InteliCLS Client;C:Progra

[code]...

I have the JDK installed in program files, I have the correct versions of eclipse and Jgrasp, and have uninstalled / reinstalled the JDK/Jgrasp/Eclipse so I don't know what the problem is?

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Apr 17, 2015

I am trying web service first time so want to client application which will consume webservice which are hosted online for testing purpose

now i want to call some methods defined in this wsdl [URL]....

can anyone tell how should i invoke methods using stand alone java file no eclipse which jar files should i use ?

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Aug 11, 2014

I created a new project at eclipse with this code pasted inside a domApli container in a java file, I tried to run it but it wont work,

package domApli;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Prg2 extends JFrame implements ActionListener{
JLabel lblNom;
JLabel lblEdad;
JTextField txtNom;

[code]...

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Sep 25, 2012

How to force browser to open/save/save as the file from server instead of browser cache.

I am creating a csv file through a pl/sql procedure and forwarding the link to user once user clicks on link he downloads the file, however if the same thing is repeated then browser returns the old cached file instead of new file generated on server.

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Jan 27, 2014

I downloaded JDK 7 file. But, I don't know how to use it. First of all, I even don't know how to open it.

There are some files in 'Java development kit', and the one I can play with is 'Java mission control'.

But it looks strange to me...and it looks it is not the way.. I want to compile files but, I can't find how to open java compiler.

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Feb 12, 2014

how to open a GUI on top of another GUI? I have built a GUI and have a button that when pressed I want to open a new GUI which is another java application within the project, it seems pretty straight forward and I just need to insert 'new [name of application]()'

Button btnEdit = new Button(shell, SWT.NONE);
btnEdit.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
new edit();
}
});
btnEdit.setBounds(76, 10, 75, 25);
btnEdit.setText("Edit");

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Apr 8, 2014

I'd like open a second GUI when I press a button that's on the first GUI, like a link in a website.

What I want to do is:

1- Open GUI_1;

2- Press a button on GUI_1; this button close GUI_1 and open another GUI (GUI_2).

How can I do it?

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Oct 3, 2014

I am new to EJB; I am writing EJB (3.1) program in JBoss 7.1 - I am using MySQL DB with JPA. While executing the program, I am facing the Generic JDBCException: Could not open connection. It is happening only for certain tables in the database; but NOT for all tables. My code is able to access few of the tables in the same database. Here is my full stack trace: -

Exception in thread "main" javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Could not open connection
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:166)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:230)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:304)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:190)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)

[code]....

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Jan 3, 2015

What does this error mean, and also, when I get it, the command line hangs so that I can't do anything else (Is there a way to recover from that?). I'm running Windows 7.

Jan 03, 2015 5:00:59 AM java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node SoftwareJavaSoftPrefs at root 0
x80000002. Windows RegCreateKeyEx(...) returned error code 5.

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Attempting To Open URL With Browser In Kubuntu?

Jan 24, 2014

In Windows and Mac both, the following code works wonders:

Java Code: // openURL called from another method
openURL("http://www.google.com");
private void openURL(String URL)
{

[Code].....

The only OS I can get this to work on is Kubuntu or even Ubuntu for that matter.

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Jul 15, 2015

I'm using java FX-8 and JDK 1.8,Netbeans 8.0.2.I want to open pdf on button click in my JavaFXML Application.I have triued pdf viewer plugins and iText but it doesn;t work.I have to pass variable value in pdf too.

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Jun 25, 2015

What I have in my tnsnames.ora and verify it all works via sqlplus
 
CDB1 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = cdb1)
 
[Code] ....
 
I am trying to get RJDBC to work so I can connect to Oracle from R doing some data analysis..
 
This connection string works for my local db which I have it running in my Virtual Box
 
con <- dbConnect(drv, "jdbc:oracle:thin:@//localhost:1521/orcl", "demo", "demo")
 
However, it does not work when I do it for the remote db that I really need to pull data from...
 
> con <- dbConnect(drv, "jdbc:oracle:thin:@//ymsdbppr-scan:1522/YMQCTPRD", "user_read", "user_read")

Error in .jcall(drv@jdrv, "Ljava/sql/Connection;", "connect", as.character(url)[1],  :
  java.sql.SQLException: Listener refused the connection with the following error:
ORA-12514, TNS: listener does not currently know of service requested in connect descriptor

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