FirstClass.java

// Java OOPS
// class - keyword
// class name - pascal case
class SecondClass{
    // main() is a method - entry point
    // void - keyword - no return 
     // static - when u run any program so that program must be load first
     // during load time static things will be loaded first.
     // public - access with the package / folder and outside the package.
     // String args[] - Command line arguments
     // Get Arguments for your own commands
     // Most of time arguments are string (collection of chars)
     // String is a class.
     // args- name of argument (Parameter ), it can be anything.
     // args can be n that's why Array.

     static public  void main(String ...arguments){
        System.out.println("Hello Java");
        
 }
}