Returning 2D Array of Objects from a Method in Java

package ch7.l7;

class Seat {
    int row;
    int column;
    boolean isBooked;

    // Constructor to initialize the seat
    public Seat(int r, int c) {
        row = r;
        column = c;
        isBooked = false; // All seats are initially not booked
    }

    // Method to book the seat
    public void bookSeat() {
        isBooked = true;
    }

    // Method to check if the seat is booked
    public boolean isBooked() {
        return isBooked;
    }

    @Override
    public String toString() {
        return "Seat: " + row + "," + column + " - " 
        		+(isBooked ? "Booked" : "Available");
    }
}

class CinemaHall {
    // Method to generate and return a 2D array of Seat objects
    public static Seat[][] initializeSeating(int rows, int cols) {
        Seat[][] seats = new Seat[rows][cols];

        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < cols; j++) {
                seats[i][j] = new Seat(i + 1, j + 1); 
                // Creating seat objects with 1-based indexing 
                // for rows and cols
            }
        }

        return seats;
    }
}

public class CinemaHallMain {
    public static void main(String[] args) {
        // Initialize the seating arrangement for a cinema 
    	// hall with 5 rows and 8 columns
        Seat[][] cinemaSeats = CinemaHall.initializeSeating(5, 8);

        // Example: Book some seats
        cinemaSeats[2][3].bookSeat(); // Booking seat at row 3, column 4
        cinemaSeats[4][7].bookSeat(); // Booking seat at row 5, column 8

        // Print the seating arrangement
        for (Seat[] row : cinemaSeats) {
            for (Seat seat : row) {
                System.out.println(seat);
            }
        }
    }
}

Seat: 1,1 - Available
Seat: 1,2 - Available
Seat: 1,3 - Available
Seat: 1,4 - Available
Seat: 1,5 - Available
Seat: 1,6 - Available
Seat: 1,7 - Available
Seat: 1,8 - Available
Seat: 2,1 - Available
Seat: 2,2 - Available
Seat: 2,3 - Available
Seat: 2,4 - Available
Seat: 2,5 - Available
Seat: 2,6 - Available
Seat: 2,7 - Available
Seat: 2,8 - Available
Seat: 3,1 - Available
Seat: 3,2 - Available
Seat: 3,3 - Available
Seat: 3,4 - Booked
Seat: 3,5 - Available
Seat: 3,6 - Available
Seat: 3,7 - Available
Seat: 3,8 - Available
Seat: 4,1 - Available
Seat: 4,2 - Available
Seat: 4,3 - Available
Seat: 4,4 - Available
Seat: 4,5 - Available
Seat: 4,6 - Available
Seat: 4,7 - Available
Seat: 4,8 - Available
Seat: 5,1 - Available
Seat: 5,2 - Available
Seat: 5,3 - Available
Seat: 5,4 - Available
Seat: 5,5 - Available
Seat: 5,6 - Available
Seat: 5,7 - Available
Seat: 5,8 - Booked

package ch7.l7;

class Student{  
    int rollno;  
    String name, city;  
     
    Student(int roll, String n, String c){  
	    rollno=roll;  
	    name=n;  
	    city=c;  
    }  
    
    public static void main(String args[]){
    	Student s1=new Student(1001,"Somya","Delhi");  
    	Student s2=new Student(1002,"James","USA");  
        
    	System.out.println(s1);//compiler writes here s1.toString()  
    	System.out.println(s2);//compiler writes here s2.toString()  
    }
}  

ch7.l7.Student@34a245ab
ch7.l7.Student@7cc355be

package ch7.l7;

class Student{  
    int rollno;  
    String name, city;  
     
    Student(int roll, String n, String c){  
	    rollno=roll;  
	    name=n;  
	    city=c;  
    }
    @Override
    public String toString() {
		return rollno+","+name+","+city;
    }
    
    public static void main(String args[]){
    	Student s1=new Student(1001,"Somya","Delhi");  
    	Student s2=new Student(1002,"James","USA");  
        
    	System.out.println(s1);//compiler writes here s1.toString()  
    	System.out.println(s2);//compiler writes here s2.toString()  
    }
}  

1001,Somya,Delhi
1002,James,USA