Replacing ‘public’ with ‘private’ in “main” in Java

JavaServer Side ProgrammingProgramming

When ‘public’ is used in ‘main’ −

Example

 Live Demo

public class Demo{
   public static void main(String args[]){
      System.out.println("This is a sample only");
   }
}

Output

This is a sample only

A class named Demo contains the main function that is public. It has a print function, which successfully compiles, executes and prints the message on the console.

When ‘public’ is replaced with ‘private’

Example

 Live Demo

public class Demo{
   private static void main(String args[]){
      System.out.println("This is a sample only");
   }
}

Output

Error: Main method not found in class Demo, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

A class named Demo contains the main function that is private instead of being public. It has a print function, which doesn’t successfully compile, hence giving an error stating that the ‘main’ method was not found, since it couldn’t be accessed because of it being private.

raja
Published on 08-Jul-2020 13:59:38
Advertisements