How To Solve Error “No Main Class Found in NetBeans”

Resolving the Error

1. Right-click on your project in the project explorer.
2. Select 'Properties'
3. Select 'Run'
4. Make sure your main class is the one you want to be executed first when the program starts running.
5. Make sure to use the fully qualified name i.e. mypackage. MyClass.
6. Click OK.
7. Run Project.

1. Does not have a main method error in NetBeans?
2. How do you make a class a main class in NetBeans?
3. Could not find or load main class in NetBeans?
4. How do I change main class in NetBeans?
5. How do you fix error main method not found in class?
6. How do you fix class does not have a main method?
7. Can we have 2 main classes in Java?
8. Can you have 2 main methods in Java?
9. How do you make a class a main class?
10. Can't find or load main method in Java?
11. How do I run a .java file?
12. Can't find or load main class in Testng?

Does not have a main method error in NetBeans?

The easiest method is to press Shift+F11 (Clean and Build Project), then hit F6 to run it. It refreshes Netbeans appropriately and finds your main without all the manual labor; and if you have multiple mains, it will give you the option to select the correct one.

How do you make a class a main class in NetBeans?

Right-click the user name package and select New -> Java Main Class... Name your class Menu . Run the project. You will be prompted to select the main class.

Could not find or load main class in NetBeans?

try this it work out for me perfectly go to project and right click on your java file at the right corner, go to properties, go to run, go to browse, and then select Main class. now you can run your program again.

How do I change main class in NetBeans?

To change the main class being used, go to the File menu and choose Project Properties. This dialog gives all the options that can be changed in a NetBeans project. Click on the Run category. On this page, there is a Main-Class option.

How do you fix error main method not found in class?

Keep the Calculate class in a separate Calculate. java file and create a new class that calls the main method. This would make the code readable. Constructors exists to initialize the objects.

How do you fix class does not have a main method?

1 Answer

1. Make sure all files are saved first. If you try to run a program where the class containing the main method has not been saved, this can happen.
2. Right-click on the project name (in the Projects explorer), then select Properties > Run - and then make sure the main class is selected there.

Can we have 2 main classes in Java?

Yes, you can have as many main methods as you like. You can have main methods with different signatures from main(String[]) which is called overloading, and the JVM will ignore those main methods. You can have one public static void main(String[] args) method in each class. Some people use those methods for testing.

Can you have 2 main methods in Java?

The answer is no; there can only one "main" method - where "main" means an entry point you can "run". You can code overloaded versions as in your example, but they can't be "run". There can be more than one main method in a single program. But JVM will always calls String[] argument main() method.

How do you make a class a main class?

you can right click on the project select "set configuration" then "Customize", from there you can choose your main class. If you're creating 2 executable JAR files, each will have it's own manifest file, and each manifest file will specify the class that contains the main() method you want to use to start execution.

Can't find or load main method in Java?

The error indicates that the java command failed to find or load the main class. It occurs when we try to run a program. When the error occurs, the JVM shows the following error message on the console: Error: Could not find or load main class ClassName.

How do I run a .java file?

How to run a java program

1. Open a command prompt window and go to the directory where you saved the java program (MyFirstJavaProgram. java). ...
2. Type 'javac MyFirstJavaProgram. java' and press enter to compile your code. ...
3. Now, type ' java MyFirstJavaProgram ' to run your program.
4. You will be able to see the result printed on the window.

Can't find or load main class in Testng?

If still not work, then you might have downloaded the wrong version of testng. jar . From link testng.org, please click "here for ant users" to download a full testng. jar(11 mega bytes), not a "Maven Central" version(no more than 100k).