Reasons why Java cannot find the class When you get the message "Could not find or load main class ...", that means that the first step has failed. If you have been using a build tool like Ant or Maven or Gradle rather than running javac by hand, you most likely would not have built the code incorrectly ... share|improve this answer answered Oct 24 '15 at 21:18 Nenad Bulatovic 2,60153857 This advice may or may not help. can the same river be deep and fordable cat gives different error when opening non-existing file What would cause turkeys to be intelligent? http://toriisoft.com/could-not/java-error-could-not-find-the-main-class.html
All I did was copy the files into the package and Eclipse was then able to detect the main method. share|improve this answer answered Aug 22 at 15:51 TiMr 383220 add a comment| up vote 0 down vote If your class is in a package, make sure to set the package Normally if a class is not on the classpath, the error thrown indicates as such. We need to supply the class name containing the main method to the interpreter.
For beginners, another important thing to understand is the difference between PATH and CLASSPATH, you must know that PATH is used locate system executable, commands or .exe, .dll files (in Windows) Quicktime is one of the applications prone to setting a system classpath. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Note that the term fully qualified classname is standard Java terminology ...
I faced this problem two times and each time I have tried different solutions(in Eclipse IDE). And that is a better solution in your case. –Stephen C Aug 22 '15 at 10:15 add a comment| up vote 6 down vote Sometimes what might be causing the issue Unless you know that you are using the default classpath (or a classpath with "." on it), "cd" will have no effect. Could Not Find Or Load Main Class Helloworld HelloWorld.java would have worked!
HelloWorld share|improve this answer answered Aug 21 '15 at 6:58 manetsus 2,68192141 This is not a good recommendation. Sign in to add this video to a playlist. READ them. if your program is com.abc package then runs following command from the parent directory of "com" java com.abc.HelloWorld without any classpath hints, Java will look into the current directory and search
Also, remember, it overrides any CLASSPATH environment variable. Could Not Find Or Load Main Class Maven share|improve this answer answered Mar 12 '14 at 0:37 KawaiKx 2,09363147 Yes. Why do people use braces around the control sequence in \newcommand? ZA Software Development Tutorials 2,878 views 8:21 Java tutorial 9 - Compile and run from command prompt - Duration: 3:28.
Since many Java programmer is now started programming using Eclipse they face this issue when they first try to run their Java program from command line. Your precious answer is not harmed. –tharinduwijewardane Mar 8 '15 at 4:28 3 The problem with "this worked for me" answers like this is that 1) they WON'T work for Could Not Find Or Load Main Class Eclipse guessing / hoping that "." is on the classpath) than by judgement (i.e. Error: Could Not Find Or Load Main Class Linux Sign in to make your opinion count.
See my example #2 of the wrong ways to specify the class name!! –Stephen C Mar 12 '14 at 3:55 add a comment| up vote 2 down vote What fixed the check my blog I should say "could not find" if the class file is not found and "could not load (missing dependencies)" if there is something else missing but not the file itself, so You probably have to reopen the command line to see any effect. Sign in 13 96 Don't like this video? Error: Could Not Find Or Load Main Class Netbeans
eHowTech 18,778 views 2:01 Repair Problems with Java - Duration: 12:20. User is set to run wheter logged in or not. share|improve this answer answered 6 hours ago Manzurul Hoque Rumi 74 add a comment| protected by Stephen C Dec 2 '13 at 15:36 Thank you for your interest in this question. this content There you type the following command line: [name of the package].[Class Name] [arguments] Let's say your class is called: CommandLine.class and the code looks like this: package com.tutorialspoint.java; /** * Created
Other References From the Oracle Java Tutorials - Common Problems (and Their Solutions) From the Java Documentation: The Java command - 'java' and 'javaw' The Classpath share|improve this answer edited Sep Error: Could Not Find Or Load Main Class Scala C:\Users\WINDOWS 8\workspace\Demo\target>java dto.HelloHP Error: Could not find or load main class dto.HelloHP You can see we are again started getting the same error, Why? I have been wading through tons of Java doc and this concrete example is what I needed –user2044223 Mar 17 '15 at 19:05 Its better to make 'Runnable JAR
thepackagename.TheClassName And this command must be called from the directory in which the thepackagename directory exists. Conditions in modeler field calculator How do we prove that something is unprovable? In our case the full name of class dto.HelloHP and it is present in C:\Users\WINDOWS 8\workspace\Demo\target\classes\dto. Error: Could Not Find Or Load Main Class Mac Thank you!
I copied your source for HelloHP and saved it as HelloHP.java. Softlect 27,546 views 6:01 How To fix could not find or load main class problem in java - Duration: 8:03. Java does not use PATH to locate anything, and if "cd" helps then it by luck rather than by judgement. –Stephen C Dec 2 '13 at 15:42 if "cd" What makes up $17,500 cost to outfit a U.S.
Same thing applies if you are running your program using -cp or -classpath option. 2) If you are running Java program from the directory, your .class file is and you don't We need to supply the class name containing the main method to the interpreter. Fixed this issue by looking at VM arguments of server. the current directory is included on the classpath. –Stephen C Sep 22 at 7:58 add a comment| up vote 0 down vote In Java, when you sometimes run the JVM from
Now, what if you want to run this program from any other directory? I have been wading through tons of Java doc and this concrete example is what I needed –user2044223 Mar 17 '15 at 19:05 Its better to make 'Runnable JAR Here is the screenshot of how I tried to reproduce and solve the error as discussed in the previous paragraph: That's all about how to solve "Error: Could not find or i am using jre and jdk1.8.0_73 February 25, 2016 at 4:19 AM mithilesh said...
if yes, see my answer –Razavi Oct 27 '14 at 12:09 3 In my case the answer was to add -jar –Nakilon Dec 15 '14 at 11:48 | show 1 The fully qualified classname is conventionally written as you would in Java source code; e.g. That would be a Java syntax error. (What you mean is that the file containing the compiled class is called "CommandLine.class" ... ). The other problem is that your instruction to "cd to the source directory" only works if you compiled the code >>into<< the source directory tree.
But why please? –Sam003 May 7 '15 at 17:21 it works because it tells the java interpreter where the bytecode class files are. –rupweb Sep 17 '15 at 8:46 Idiom for situation where you can either gain a lot or lose a lot How do I catch a Ditto? The classpath needs to include all of the other (non-system) classes that your application depends on. (The system classes are located automatically, and you rarely need to concern yourself with this.) StephenC, yours lacks the simple package example I needed as I am new to Java. –kmort Oct 29 '14 at 19:02 This was exactly my problem.
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