Home Tutorialhelp Comment Getting error when i run this program

 
 

Comment

kartik
Getting error when i run this program,
February 21, 2010 at 3:38 AM

Exception in thread "main" java.lang.NoClassDefFoundError: SwingDemo
Caused by: java.lang.ClassNotFoundException: SwingDemo
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: SwingDemo. Program will exit.
View All Comments | View Tutorial
Advertisement
Related Tutorial and Articles
Swing AWT

How to run java swing application from jar files .
of netbeans but when i am trying to run from there i am getting error "Could not find...How to run java swing application from jar files .  Hello Sir, I developed a java swing application .Now i want to execute it as .exe 

General

Java 2D API
since Swing is built on 2D package. Pluggable Look and Feel  The Java Swing... Java 2D API       Programming has become more interactive with Java 2D API. You can add images 

Java Beginners

error in program when trying to load image in java - Java Beginners
errors but my program still won't run. I keep getting this type of message and I...error in program when trying to load image in java  Hi, I'm trying... below is the codes I used to create a logo. Once I tried to run the program I got 

Java Beginners

java 2d graphics - Java Beginners
java 2d graphics  Hello All I need to use 2d graphics in java to build up a map from the given geographic coordinates. What i am not getting is how to scale down these geographic coordinates to device coordinates. I would 

JDBC Questions

java run time error - JDBC
java run time error  when i m running for batch execution program in jdbc i m facing this kind of runtime error as Exception in thread "main...) at BatchUpdation.main(BatchUpdation.java:10) THE CODE WHICH I HAVE WRITTEN 

Spring Framework Questions

Getting an error :(
Getting an error :(  I implemented the same code as above.. But getting this error in console... Console Oct 5, 2012 10:18:14 AM... was not found on the java.library.path: C:\Program Files\Java\jre1.5.007\bin;.;C:\Windows 

Java Beginners

getting an error when set classpath
getting an error when set classpath  Hello Everyone! i have used hssf... for that jar file but when i compile the program it will compile correctly but when i run it, it gives an error "could not find or load main" please help me 

Java Beginners

java run time error - Java Beginners
java run time error  when i compile my program it didnt show any error in my program.but i cant run my program, if i run my program means it will show error like as following Exception in thread "main 

Java Beginners

compile and run java program
compile and run java program  Hello, everyone!!! I just want to ask.... For example, I have a java file named Hello.java and saved at my desktop. how do I compile and run this file using the terminal of ubuntu... By the way, I am 

Java Beginners

java 2d arrays
java 2d arrays  Create a program that will: a) Create the array and populate it with the given values. 9, 8 2, 17 49, 4 13, 119 2, 19 11, 47.... and if i do it manualy it is wrong. public class Arrays { public static void main 

Applet Questions

Java 2D Graphics - Applet
Java 2D Graphics  I am working on GIS project.I want represent a line in different forms like railroad, airplane etc. How can i acheive this I know...://www.roseindia.net/java/example/java/swing/graphics2D/ Here you will get lot 

Java Beginners

java run time error - Java Beginners
java run time error  i am getting error "main" java.lang.NullPointerException" in my program, iam sending code actually motive of program... only, i have to display number of files and its last modified time ,i use 

JDBC Questions

java run time error in loading the driver - JDBC
java run time error in loading the driver  when i mrunning the program in oracle using type 4 driver it is giving the error as Error:jdbc.driver.OracleDriver the code was as follows: please suggest me how it can 

Java Beginners

Java 2D
Java 2D  Hi, What is Java 2D? Thanks   Hi, Please see it at Java 2D API. Thanks 

JavaMail Questions

when sending the mail from java I am getting the below error - JavaMail
when sending the mail from java I am getting the below error   when sending the mail from java I am getting the below error : Exception in thread "main" java.lang.NoClassDefFoundError: javax.mail.internet.MimeMessage 

Java Beginners

Works when run from desktop but....
Works when run from desktop but....  I used the code provided here for a pie chart using swing in Java, and when I saved it to my desktop, it ran fine, and worked as explained, but then I tried to add the same code to NetBeans 

Applet Questions

java applet run time error - Applet
java applet run time error  Hi, Im new to java applet.please help me. i have create a MPEG movie player in applet. when i run that program it show the error that,"javax.media.NoPlayerException: Error instantiating class 

Swing AWT

Java Compiler error - Swing AWT
Java Compiler error  Hi, I try to add quartz Lib in my HelloQuartz application. When I run HelloSchedule, I get this error: "Exception in thread... can add Jar File in Java Build Path Library. i get this message : " No entries 

Java Beginners

error in java progran at run time - Java Beginners
error in java progran at run time  Hello sir,,, i make a servlet program in java,,but i face some problem,,so please me.. Actually this type of error are come in my all servlet program My Servlet-- Error 

Java Beginners

error in java progran at run time - Java Beginners
error in java progran at run time  Hello sir,,, i make a servlet program in java,,but i face some problem,,so please me.. Actually this type of error are come in my all servlet program My Servlet-- Error 

Java Beginners

how to run java program
how to run java program  i have jar file. in jar i have so many classes.in one of file i want modify .after modifying file i want replce in jar. please help me to how to generate class and how to replace 

JDBC Questions

How Jdbc program can be run??
created successfully and when i compiled this program then it compiled successfully ,but when i run it ,it gives following error-> C:\Program Files\Java...How Jdbc program can be run??  import java.sql.*; import java.util. 

Java Beginners

How to Run First Java Bean Program ?
How to Run First Java Bean Program ?  Hi My Dear Friend I can run many Java Programs Like, Applet,Swing,RMI ,Socket Programming and Java Servlet too But Now I need that How to run Java Bean Now I have BDK1.1 But still don't 

Swing AWT

how to run this program?
how to run this program?  how to run java swing program   Java Swing program runs same as a simple java program. There is no difference... with javac and run with java command, same as a simple java program. Learn Swing 

General

Java Swing Tutorials
and you can use it in your program. Java Swing tutorials first gives you brief... with the help of Java 2D API.   Data Transfer Swing...; This program shows you how to create a frame in Java Swing Application. The frame 

Java Beginners

java not run on my pc
java not run on my pc  i have installed java in pc but when i run and compile any program the massage is display that 'javac' is not recognized as an internal or external command 

Java Beginners

how to run a java program using run.exec()?
how to run a java program using run.exec()?  Hi..i want to compile and run a java file using run.exec().i.e., without compiling and running from.... can i expect a sample java program using run.exec(). Thanking you 

Swing AWT

java compilation error - Swing AWT
java compilation error   NestedPopupMenu n = new NestedPopupMenu(); getting error as "local variable n is never read  Hi dharani, This is running code. I hope that this code will help you. import java.util. 

General

Graphics 2D
have to import awt and swing package in our Java code.   ... Example In this section, we are going to develop a small Java Graphics... on class TextHitInfo. In the given example, when you click the element of the string 

Java Magazine Questions

How to stop java scripting engine when the script being run is taking too much time?
How to stop java scripting engine when the script being run is taking too much time?   How to stop java scripting engine when the script being run... exceeds to throw out of memory error. I searched lot in google but didn't find 

Java Beginners

java compilation error - Java Beginners
java compilation error  I need to know how to correct a compiler error for my program to run. The error I keep getting is unclosed string literal... and this is when my compiler error occurs. Let me know if you need any 

Java Beginners

run ttime error - Java Beginners
run ttime error  how to compile a client server application using RMI ?  Hi friend, I am sending you a link. This link will help you. Please visit for more information. http://www.roseindia.net/tutorials/rmi/rmi 

Java Beginners

run a java application - Java Beginners
run a java application  Hai Deepak, I ve set my environment... run any java file.So i want to know the problem actually i had.Thanks in advance...; CLASSPATH= C:\Program Files\Apache Tomcat 4.0\common\lib\servlet.jar; JAVA_HOME=C 

Swing AWT

code to display images using 2d array - Swing AWT
code to display images using 2d array  HI !! I have an image file in ascii/binary format (lines & pixels) in the form of a 2d-array. I would like to display this using java code. I am relatively new to coding 

Swing AWT

Swing Program
Swing Program  Write a java swing program that takes name and marks as input with all validation. The name and marks will be displayed in message box when user clicks on a button 

Java Beginners

java error - Java Beginners
. But if I want to run that program the fetches me the following error. For example for file: Test.java C:\Program Files\Java\jdk1.6.0_17\bin>javac Test.java...java error  Hello sir, on compiling any program from command prompt 

Java Beginners

using 2D Array
using 2D Array  Write a JAVA program using 2D Array to auto-grade exams. For a class of N students, your program should read letter answers (A, B, C, D) for each student. Assume there are 5 questions in the test. Your program 

Development process Questions

using 2D Array
using 2D Array  Write a JAVA program using 2D Array to auto-grade exams. For a class of N students, your program should read letter answers (A, B, C, D) for each student. Assume there are 5 questions in the test. Your program 

Java Beginners

: Java Compilation error. - Java Beginners
instance. Static Block is executed when the Program starts. Example..."); } public static void main(String args[]){ } } When we run this program...: Java Compilation error.  what is the difference between static 

Java Beginners

Java Program Complication error - Java Beginners
Java Program Complication error  Hi there, I have this program I had to write called ThreeArrayLists.java, but I keep getting this error "use... elements in the price and quantity arrays (for example, amount [i] = price[i 

JDBC Questions

java runtime error - JDBC
java runtime error  when i am running my jdbc program using thin... to this : Thrown when the Java Virtual Machine attempts to read a class file... that is not supported by the JDK attempting to run it. In the above example 

Applet Questions

I am new to java applets. When i run this code on applet viewer status is displayed that applet not initialized
I am new to java applets. When i run this code on applet viewer status is displayed that applet not initialized  import java.awt.*; import java.awt.event.*; import java.applet.*; public class Textfields extends Applet implements 

Development process Questions

Jsp error when i run this a jsp file
Jsp error when i run this a jsp file  hi I got this error when i run the jsp file in IDE and outside also please help me java.lang.NullPointerException org.apache.jsp.insertjsp.jspInit(insert_jsp.java:22 

Java Beginners

compilation error - Java Beginners
compilation error  Dear sir, When i compile some pgms i am getting below error.what may be the reason? "uses or overrides a deprecated API... -Xlint:unchecked Anyways, it will make no harm and your program will get run 

Swing AWT

Java - Swing AWT
. http://www.roseindia.net/java/example/java/swing...Java  How can I run an application of Microsoft Windows like notepad or paint from my swing program?  Hi friend, import java.awt. 

Java Beginners

Concatenate 2D arrays
Concatenate 2D arrays  JFileChooser jf = new JFileChooser...[] file = jf.getSelectedFiles(); for(int i=0;i<file.length;i++) { System.out.println("Iteration number "+i); Workbook workbook 

Java Beginners

swing - Java Beginners
swing  i tried many programs in swing to set a background image but everytime it shows somerun time error...plz anyone help me by sending a program for setting background image using swing....  Hi Friend, Try 

Swing AWT

Swing program
Swing program  Write a java swing program to get name and email id. Display the error message if email id is not in xxxxx@xxxx.xxx format.   import java.awt.*; import java.sql.*; import javax.swing.*; import 

Swing AWT

Java Program - Swing AWT
Java Program  Write a Program that display JFileChooser that open...; for ( Iterator i = filenames.iterator(); i.hasNext(); ) { String filename... filenames = new ArrayList(files.length); for (int i = 0; i < files.length 

Java Beginners

Threads in Java Swing MVC Application
Threads in Java Swing MVC Application  Hello, I am currently making a Java Swing application, but I am having a lot of trouble with implementing... custom threads into it, so my GUI doesn't freeze when I run certain parts 

Swing AWT

Swing Program
Swing Program  write a java swing program to get username and password. The name contains only characters while password is masked... { JOptionPane.showMessageDialog(null,"Error!"); text1.setText 

Java Beginners

Java compilation error - Java Beginners
Java compilation error  Hello, i am getting an error while running simple core java program on command prompt.java is installed on my pc.... For example if java is installed at c:\Program Files\Java\jdk1.6.0_01 

Java Beginners

java i/o - Java Beginners
java i/o  Dear sir, i wrote a program where program asks "Enter your text:" then that text gets saved in a file called "data.txt" and then program gets closed. when i open the program again and enter text in this case previous 

Swing AWT

Getting ..Photograph.jpg not found - Swing AWT
Getting ..Photograph.jpg not found  hello sir thankyou very much for the code ... but sir here only other values are getting displayed...but not image for image it is comming Couldn't find file: Photograph.jpg .. why so?..I 

Swing AWT

java - Swing AWT
java  i want a program that accepts string from user in textfield1... information, http://www.roseindia.net/java/example/java/awt/ Thanks...) { SwingUtilities.invokeLater(new Runnable() { public void run 

Java Beginners

Java swing
Java swing  I create one table. That table contains task ID and Task Name. When I click the task ID one more table will be open and that table... to the database using java swing 

JSP Servlet Questions

Getting NumberFormatException
. I used the same type of code in a simple .java program but when I.m using...Getting NumberFormatException  Hello Sir, I'm using Integer.parseInt(String str) function which returns a NumberFormatException(Unknown source). I 

Java Beginners

Still getting the http 404 error - Java Beginners
Still getting the http 404 error  Dear experts, I refer to the last solution given to me. A few clarification:- 1. I must stress... is userid? Anyway, whatever I do, I still receive the http 404 error...saying 

Java Tips and Examples

Error processing
to correct their problem. I recently used a program that produced "Error... Java: Error processing Error in user input or action If the user makes an error in input, give the appropriate feedback, and allow them to correct 

Java Beginners

Getting ISD code when user input country name
Getting ISD code when user input country name  I want to create... I am the Learner in Java programming, i want to know how to start this one. I... code, from that list i have to read the file and when user input any country name 

Blog

Sitemap Java Swing Tutorial
-to-One Relationship | JPA-QL Queries Java Swing Tutorial Section Java Swing Introduction | Java 2D API | Data Transfer in Java Swing | Internationalization in Java Swing | Localization | What is java swing 

Swing AWT

Java logical error - Swing AWT
Java logical error  Subject:Buttons not displaying over image Dear Sir/Madam, I am making a login page using java 1.6 Swings. I have want to apply... on it. But the buttons are not displaying properly. So,I request your kind help. I have 

Swing AWT

Swing Program
Swing Program  Write a java swing program to calculate the age from given date of birth 

Swing AWT

opening internet browser in java program - Swing AWT
opening internet browser in java program  i want a code to open the internet browser in swing program using JFrame.  Hi Omkar, Use...) { JOptionPane.showMessageDialog(null, "Error in opening browser" + ":\n" + e.getLocalizedMessage 

Java Beginners

getting random number in java
getting random number in java  getting random number in java Hi everyone, i am trying to get a random number in a particular range. for example random numbers between 1 to 100 in Java. Though i m new to Java, i have tried many 

Swing AWT

Java Program - Swing AWT
Java Program  A program to create a simple game using swings.  Hi Friend, Please visit the following link: http://www.roseindia.net/tutorial/java/swing/guessNumber.html Thanks 

Java Beginners

How to compile and run Java program
How to compile and run Java program  How to compile and Java program..., For compiling and running the Java program from command prompt you should must have JDK... tutorial Compiling and Running Java program from command line. If Java 

Java Beginners

java compilation error - Java Beginners
thats maybe why I'm getting that error message. Is there a way I can find an image...java compilation error  Hello, I sent a previous message regarding... the codes I still received this message. My program compiles with no errors but I just 

Java Beginners

Java Program - Java Beginners
Java Program  Hi I'm having trouble with this problem, I keep getting errors. Write a program GuessGame.java that plays the game ?guess the number? as follows: Your program chooses the number to be guessed by selecting 

Java Beginners

java compiler error
java compiler error  I am trying to compile a simple program which...(); and B b=new B(pointing below this B)(); I am using windows 7: when i...[]) { B b=new B(); } } Above program is in file A.java second program 

Java Beginners

Getting Computer Date in java
Getting Computer Date in java  Hi , I want to get the PC Date... but this.. String strDate = new Date(); I get this server error, "The type Date is ambiguous". I've also tried Date date = new Date(); ... but it get's the same error 

Java Beginners

java compilation error - Java Beginners
calling other java pgms like k-means and Readfile... when i execute am getting error...java compilation error  package punitha; import java.util.Vector...() { public void run() { new Input().setVisible(true 

Java Beginners

Java Swing - Java Beginners
Java Swing  Hi, I'm a java programmer, developed few java swing projects.. i want to make that swing jar packages to windows installer to .msi or .exe is that possible? after converting is it necessary that java should 

Swing AWT

swing program
swing program  Write a java swing program to getname and email id. Display the message if email id contains the name of theuser 

Swing AWT

Java Dialogs - Swing AWT
visit the following links: http://www.roseindia.net/java/example/java/swing/GrideComponents.shtml http://www.roseindia.net/tutorial/java/swing...Java Dialogs  a) I wish to design a frame whose layout mimics 

JDBC Questions

java error - JDBC
java error  Why am I getting errors in the follwing program...[] args) { System.out.println("MySQL Connect Example."); Connection conn..., I saw your posted code. your is currect please add mysql connector jar 

Java Beginners

Java swing
Java swing  when i enter the time into the textbox and activities into the textarea the datas saved into the database.the java swing code for the above item   import java.sql.*; import java.awt.*; import javax.swing. 

Java Beginners

Run this code..plzz - Java Beginners
Run this code..plzz  Hi Friend... ERROR: Exception in thread "main...) ----------------------------------------------------------------- Can any one correct this Error...;Hi friend, I am sending code according to your requirement but you 

Java Beginners

Storing the Color Image pixel values into 2d array
Storing the Color Image pixel values into 2d array  i want to store the color image pixel values into 2d array and agiain the array have to store into a text file using java... plz provide the code 

Java Beginners

When i click on Monitor Tomcat, it shows
When i click on Monitor Tomcat, it shows   To run servlet i have seen... installed java 7 and tomcat 7, when i click on Monitor Tomcat it shows...' and when i Open your Browser (Google Chrome) and type the following URL : http 

Java Beginners

When i click on Monitor Tomcat, it shows
When i click on Monitor Tomcat, it shows   To run servlet i have seen... installed java 7 and tomcat 7, when i click on Monitor Tomcat it shows...' and when i Open your Browser (Google Chrome) and type the following URL : http 

Java Beginners

how to run java program that has several classes under package from usb drive?
how to run java program that has several classes under package from usb drive... package. I have to use following line on command line to compile and run my program... did all coding in eclipse and getting all output. I tried running it through 

Java Interview Questions

Java Compilation error. - Java Interview Questions
Java Compilation error.  when ever i run my console application i get this error or message even if it is a helloworld program please help AgentId [JavaApplication]c:\javase\bin\javaw.exe 

Java Beginners

Java I/O - Java Beginners
Program is not that difficult, go through the given link for Java Example Codehttp://www.roseindia.net/java/example/java/io/java-create-directory.shtmland run...Creating Directory Java I/O  Hi, I wanted to know how to create 

Java Beginners

java program - Java Beginners
://www.roseindia.net/java/example/java/swing/ Thanks Amardeep...java program  ahm... i will use a table, text field and a button in java... a user will input a data to be search in the table.. after searching 

Java Beginners

Java swing
Java swing  Design an appliaction for with details such as name,age,DOB,address,qualification and finaly when we click the view details button all types details should be displayed in another View in TextView's..I need the sample 

Swing AWT

Program for Calculator - Swing AWT
Program for Calculator  write a program for calculator?  Hi Friend, Please visit the following link: http://www.roseindia.net/java/example/java/swing/calculator-in-swing.shtml Hope that it will be helpful 

Java Beginners

Getting 404 errors - Java Beginners
Getting 404 errors  Dear experts, I have embedded a login page inside my landing page - home.jsp. So, at the right-hand column of my page, I... in the xml mapping inside my netbean IDE. However, even when I tried manually 

Swing AWT

Swing Program
Swing Program  write a java swing program to get user name and password. The name contains only characters while password is masked with the character "*". Apply checks for all validation 

Java Beginners

Java swing
Java swing  I create 2 text field f1,f2 and 2 button b1,b2.If i enter... will be shown in the Message dialog box and if i click the button b2 the text field... of this program 

Swing AWT

Java Program - Swing AWT
Java Program  A Java Program that display image on ImageIcon after selecting an image from the JFileChooser 

Swing AWT

Java Program - Swing AWT
Java Program  A java Program that send message from one computer to another and what are the requirements 

Swing AWT

Java Program - Swing AWT
Java Program  A Java Program to send message from one computer to another 

Java Beginners

java error - Java Beginners
be dereferenced If Programme saved in SortFileData also shows some error Please rectify the errors and provide the coding that run properly Write a Java program...java error  Thanks for providing me the answer for the question 

Java Beginners

JAVA Error - Java Beginners
JAVA Error  i have made my own calculator GUI..and i want the text... but when i used this code: JButton btnBack=new JButton("Backspace"); btnBack.setForeground(red); it send me an error message that goes like this unknown 

Programming Tutorials

Getting Started With Java
Getting Started With Java      ...;  Download JDK (Java) JDK is a software development program... and it is used to develop the robust application. Java application program is platform 

Java-Tutorials

Factorial Program in Java
execution of the program. BufferReader is defined under the Java I/O package... exception". Example of Factorial program in Java: import java.io.*; class...\bipul\CoreJava\Swing Example\Factorial> java Factorial1 enter 

Java Beginners

Exception Handling-Error Messages in Program
in a file called ArrayList,java? I couldn't get it to run when I put them into just two...Exception Handling-Error Messages in Program  Hi Friend, I am having...[]) throws Exception{ This is where I begin to see problems with error messages 

Java Beginners

Java Program Errors
Java Program Errors  These are the 2 errors which I am getting when executing the java source code extracted from executable jar file The project... files. Showing error for this line package gov.nasa.worldwind.formats.tab 

Java Beginners

Selecting elements of 2D array with GUI
Selecting elements of 2D array with GUI  Hello! I am building a Java application with GUI (JFrame form) that is supposed to display all or selected elements of below 2D array (images attached): Year Season 2002 2003 

Advertisements Advertisements
 

 

 

DMCA.com