How do I fix editor does not contain a main type error in eclipse?

15 Answers

1. Right click on the project folder -> Properties.
2. Choose ‘Java Build Path’
3. Click on ‘Sources’ tab on top.
4. Click on ‘Add Folder’ on the right panel.
5. Select your folders and apply.

What does editor does not contain a main type mean in eclipse?

Basically, this type of Error means your Editor is not able to find the “main” method in any of your current program classes. The editor shows this error because when you want to run the project, at that time, the interpreter couldn’t find the main function to start the execution of the program.

What is main type in Java?

Java main method is the entry point of any java program. Its syntax is always public static void main(String[] args) . Also String array argument can be written as String… args or String args[] .

How do I change the default package in eclipse?

In pack explorer of eclipse> Single Click on the name of Package> click F2 keyboard key >type new name> click finish. Eclipse will do the rest of job. It will rename old package name to new in code files also.

Does Eclipse not match expected package?

java files to “package path”, click ‘src’ item and press “F5”. All should be ok. If you have imported an existing project, then just remove your source folders and then add them again to build path, and restart eclipse. Most of the times eclipse will keep showing the error till you restart.

Why is Eclipse not working?

If you’ve “installed” Eclipse but are having trouble getting it to run, the most likely cause is that you have not correctly specified the JVM for it to run under. You may need to edit the eclipse. ini file. Another common mistake on Microsoft Windows is a mismatch between the “bittedness” of Eclipse and the JVM/JDK.

What is the default package in Eclipse?

They appear under a node in the hierarchy called “default package”. This is because if you don’t specify a package for your class, it will be grouped with all other non-packaged classes in this default package. You can add a new package in Eclipse by right-clicking on your project and selecting New > Package.

How do I change my default package?

You can’t rename default package since it actually doesn’t even exist. All files in default package are actually in src folder. Just create new package and move your classes within. Select the classes you want to move to a different package name.