public class StudentBlueprint { // Define the class representing a student entity template
    private String name; // Declare a private instance variable for the student's name
    private static int nextId = 1001; // Declare a static variable shared across all instances for IDs
    
    static { // Static initialization block for class-level setup
        System.out.println("[CLASS] Blueprint loaded into memory."); // Log the class loading event
        System.out.println("[CLASS] Initializing shared ID generator..."); // Log class setup progress
    } // End of static block (runs only once)
    
    { // Instance initialization block for individual object setup
        System.out.println("[OBJECT] Allocating memory for a new student..."); // Log object creation start
    } // End of instance block (runs for every 'new' call)
    
    public StudentBlueprint() { // Default constructor for creating empty student objects
        this.name = "Unknown"; // Assign default name string to the object
        System.out.println("[CONS] Default constructor applied."); // Log the constructor activity
    } // End of default constructor
    
    public StudentBlueprint(String name) { // Parameterized constructor for custom student data
        this.name = name; // Assign the provided name to the instance variable
        System.out.println("[CONS] Custom constructor applied for: " + name); // Log specific object creation
    } // End of parameterized constructor
    
    public void show() { // Instance method to display the student's internal data
        System.out.println("ID: " + nextId++ + " | Name: " + this.name); // Print ID and name, then increment ID
    } // End of show method
    
    public static void main(String[] args) { // Main method to execute the blueprint test
        System.out.println("--- Starting Main Execution ---"); // Log the start of the main thread
        
        StudentBlueprint s1 = new StudentBlueprint(); // Instantiate a student using default constructor
        s1.show(); // Call display method for the first student
        
        System.out.println("--------------------------------"); // Print separator for clarity
        
        StudentBlueprint s2 = new StudentBlueprint("Aarav"); // Instantiate a student with custom name
        s2.show(); // Call display method for the second student
        
        System.out.println("--------------------------------"); // Print separator for clarity
        
        StudentBlueprint s3 = new StudentBlueprint("Ishani"); // Instantiate another student with custom name
        s3.show(); // Call display method for the third student
        
        System.out.println("--- End of Blueprint Test ---"); // Final log for the program termination
    } // End of main method
} // End of StudentBlueprint class