Multiple main() methods in java

Question

I was wondering what the effect of creating extra main methods would do to your code.

For example,

public class TestClass {
    public static void ma         


        

Answer 1

The main method is static, which means it belongs to the class rather than the object. So the object won't have another main method inside it at all.

You could call the main method on instances of the object, but if you do that it's literally just another way of calling TestClass.main() (and it's frowned upon by many, including me, to call a static method on an instance of an object anyway.)

If you're referring to multiple main methods in the same program, then this isn't a problem either. The main class is simply specified and its main method is executed to start the program (in the case of a jar file this is the main-class attribute in the manifest file.)