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Advanced Quizzes – Java Arrays

The following Java exercise(s) are designed for advanced level developers. If the level is too hard, then I recommend to select an easier one or you might consider reading my article about this topic, which offers a theoretical explanation including more exercises. Read More: Java Arrays

Article: Java arrays
Quizzes: Beginner  Intermediate  Advanced 

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Quiz 1: A multi dimensional array

What is written to the standard output as the result of executing the following code?

public class Seat {

	private int row;
	private int col;
	private String status; // f=free, o=occupied, r=registered
	Seat[][] hall = new Seat[3 + 1][2 + 1];

	Seat(int row, int col) {
		this.row = row;
		this.col = col;
		this.status = "f";
	}
	public void initializeHall(){
		for(int row = 1; row <= 3; row ++ ) {
			for(int col = 1; col <= 2; col ++ ) {
				hall[row][col] = new Seat(row,col);
				if(col > 1) {
					hall[row][col].status = "o";
				}
				if(row == 2) {
					hall[row][col].status = "r";
				}
			}
		}
	}
	public static void main(String[] args){
		Seat seat = new Seat(0,0);
		seat.initializeHall();
		for(int row = 1; row <= 3; row ++ ) {
			for(int col = 1; col <= 2; col ++ ) {
				System.out.print("-" + seat.hall[row][col].status);
			}
		}
	}
}

Select the correct answer.



Please, leave your questions, feedback and suggestions in the comments below! If you need more explanation by any of the answers, just let me know to update it for you!

Megisoft.com offers a practical method to learn and improve your Java skills. It avoids unnecessary long boring theoretical explanations, but it uses many exercises and quizzes. The author of Megisoft is Sar Maroof who has more than a decade of experience with web development mainly with Java, MySql, HTML and more..
Article: Java arrays
Quizzes: Beginner  Intermediate  Advanced 

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Author: Sar Maroof
More than a decade of experience with developing web applications mainly with Java.
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Applied Science in Physics HBO Amsterdam
Bachellor Science in Physics at Basra university.
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  1. The genius store caelld, they’re running out of you.

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