What is the main function of the main method?

The main method is the entry point of a Java application. When the Java Virtual Machine (JVM) starts a program, it looks for and executes this method.

Its signature is standardized:

public static void main(String[] args) {
    // Application code
}

Let's analyze the components:

• public: Access modifier indicating that the method is accessible from anywhere. The JVM must be able to invoke it.
• static: Indicates that the method belongs to the class, not a specific instance of the class. The JVM can invoke it without creating an object of the class.
• void: Return type. The main method does not return any value.
• main: The name of the method, which is strictly defined by the Java specification for the entry point.
• String[] args: A parameter representing an array of strings. It contains command-line arguments passed during program startup.

The JVM starts executing the program from the first line of code inside the main method body. After this method completes, the program execution usually terminates.