Question

Answer the following in brief. Give a reason/example wherever applicable.

What is the importance of main() in a program?

Answer 1

• Triggers Execution: The operating system or runtime environment automatically looks for main() to start running the application. Without it, a standalone program cannot execute.
• Controls Program Flow: It acts as the central manager, invoking other functions and managing the lifecycle of the application.
• Example:

public class Car 
{
    //1.The engine starts here automatically
    public static void main(String[]args)
    { 
        System.out.println("Engine started.");
        useBrakes();//2. 
        The main method activates other parts
    }

    public static void useBrakes() 
    {
        System.out.println("Car stopped.");
    }
}