Error: Main method not found in class, How can i use void without main method and don't get an error ?

Question

I follow the example, it's not working and say
Error: Main method not found in class Animal, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

i using eclipse

Answer 1

The main method is what is excecuted when you launch your program. Put a main method like indicated.

Answer 2

This error occurs when you try to run a Java program that does not have a main method defined in its code. The main method is the entry point of a Java program, and without it, the program cannot be executed.

To fix this error, you need to ensure that your Java program has a main method defined with the correct signature. The main method must be declared as public, static, and void, and take an array of String arguments.

Here's an example of a valid main method declaration:

public static void main(String[] args) {
// code to be executed
}

Make sure that the main method is spelled correctly, and that it is located in the correct class file.

https://net-informations.com/java/basics/main.htm