Explain public static void main(String args[])?

public static void main(String[] args) is the entry point of a standalone Java application. When a Java program is executed, the JVM looks for this method and starts program execution from it.

Key Points: • public allows the JVM to access the method from outside the class. • static enables the JVM to invoke the method without creating an object of the class. • void indicates that the method does not return any value. • main is the predefined method name recognized by the JVM as the starting point of execution. • String[] args stores command-line arguments passed to the program during execution.

Example: If a program is executed as:

java Test Hello Java

Then: • args[0] = "Hello" • args[1] = "Java"

Code Example:

public class Test {

    public static void main(String[] args) {
        System.out.println("Program Started");
    }
}

Interview Tip: A concise interview answer is:

"public static void main(String[] args) is the entry point of a Java application. The JVM starts execution from this method. public makes it accessible, static allows it to be called without creating an object, void means it returns no value, and String[] args is used to receive command-line arguments."