I created a new java project in eclipse. This is the first time I am using it.
After creating java files.
I tried running a java file by right clicking->Run As-> Java Application
It showed the error :
Error: Could not find or load main class ISBN
Caused by: java.lang.ClassNotFoundException: ISBN
What could be the reason for this error? How do I fix it?
Related
In visual studio code. my code is not running properly. There is no syntax error or any error but it is not running. please tell me the solution. it will really appreciated. java path is also ok.
i had tried all possible outcomes but terminal is only showing error could not load main class, caused by java.lang.classnotfoundexception: javabasics.java
In java, the name of the class must be consistent with the file name
Try to modify the file name or class name
Maybe it's not because of Top-level
I'm currently working on a group project. We are using Eclipse to make a Java program and using e-git (Eclipse extension) to work together.
For some reason today, whenever I try to make a new Java file in the package, it shows me the following error:
Error: Could not find or load main class projectPackage.filename
I have no idea what is causing the error as it was working fine yesterday.
What happens if you have create a new package and try to create a Java file there?
Currently my team is working on some more complex code which our app will use and although we have UnitTests running we would really like to be able to use JDocTest so that we can create tests while we write some of our smaller methods.
I have successfully followed the instructions from JDocTest github read me and compiled it into my project. However I'm having trouble running the particular .java class files. I'm trying to be able to run MatrixCreator.
Here is what my directory looks like
Here is my attempt to set up MatrixCreator under application
I get the error
Error:Gradle: A problem occurred configuring root project 'AvocadoCoreProject'.
Could not resolve all files for configuration ':classpath'.
Could not find com.android.tools.build:gradle:3.0.0.
Searched in the following locations:
https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.pom
https://jcenter.bintray.com/com/android/tools/build/gradle/3.0.0/gradle-3.0.0.jar
Required by:
project :
My simplified project structure is as follows:
Project
-src
-Game.java
To run this, I created a Run Configuration with my main class as Game (no red squiggles) and the working directory C:\...\Project. When I run this configuration, however, it comes up with the exception of Exception in thread "main" java.lang.ClassNotFoundException: Game. The full error message can be found at this PasteBin.
The src directory has been marked as my Source Directory, and my Project has a content root to src.
Any ideas on what this error may be caused by and how I can fix it? Thanks in advance.
My java program which I created could not recognize SAPJCO3.jar which is already in the system class path and included in eclipse/project with buildpath option available in eclipse.
ERROR MESSAGE
java.lang.ClassNotFoundException: No ClassLoaders found for: com.sap.conn.jco.AbapException
Caused by: java.lang.RuntimeException: java.lang.NoClassDefFoundError: com/sap/conn/jco/AbapException
If I just remove AbapException from my program and give normal java exception , it throws error on the next JCO class. The same program works good in NETBEANS which I used for testing. Since my actual project was developed in eclipse I need the program to run in Eclipse.
Can any one help me with this.
Try adding the property to your windows "System variables"/"Environment variables".
Variable Name: java.library.path
Variable Value: C:/SAPJCo
This will work for Eclise.
Good Luck!!