Is the main method compulsory in Java?

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Is the main method compulsory in Java?

In Java, the main method is a standard method that is used to start the execution of a Java program. It is defined as the entry point of a Java application and is called by the Java Virtual Machine (JVM) when the program is run.

The main method is defined with the following signature:

public static void main(String[] args)

The main method must be defined as public, static, and void and must accept a single argument of type String[].

It is not strictly required to have a main method in every Java program, but it is necessary to have a main method if you want to run the program as a standalone application. If you do not need to run the program as a standalone application and only want to use it as a library or module in another program, you do not need to define a main method.

For example, if you want to create a Java program that can be run from the command line, you will need to define a main method. On the other hand, if you want to create a Java library that provides utility functions for other programs, you do not need to define a main method.

For more information on the main method in Java, you can refer to the Java documentation or other online resources.

Created Time:2017-11-01 22:29:44  Author:lautturi