{{announcement.body}}
{{announcement.title}}

# Java Quiz: Best Seats in the House

DZone 's Guide to

# Java Quiz: Best Seats in the House

### Can you figure out the number of free vs. reserved seats at a small movie theater? You don't want to lose out on your chance to see Batman v Superman, do you?

· Java Zone ·
Free Resource

Comment (12)

Save
{{ articles[0].views | formatCount}} Views

Here's the answer to last week's quiz, courtesy of Sar Maroof:

1. Calling the MyAbstract constructor

``````MyAbstract() // Calling MyAbstruct() no-arg constructor
x*=2 = 3*2 = 6
method(3)                  // MySuper class overwrites method one-arg
method() + 3               // method() no-arg is overwritten in MySub
return x + 5 = 0 + 5 = 5   // Because x refers to the x in MySuper (Not the x of MyAbstract), which is a subclass of MyAbstract
method() + 3 = 5 + 3 = 8;
method(3) returns 8;
printing the first x = 8;``````

Printing the first x = 8;

2. Calling the MySuper() constructor

``````int x = 2
MySuper() // Calling MySuper() no-arg constructor
method() // method() no-arg is overwritten in MySub
return x + 5 = 2 + 5 = 7; // x refers to the x in MySuper, which is = 2
printing the second x = 7;``````

Printing the second x = 7;

3. Calling MySub() Constructor

``````// Calling MySub() no-arg constructor
x += 3 = 2 + 3 = 5``````

Printing the third x = 5

The Result is: -x8 – x7 – x5

Here is the next quiz:

## The Following Program Determines the Status of Twenty Seats in a Movie Theater:

``````public class Seat {
public enum Status {
FREE, RESERVED, OCCUPIED;
}
private Status status;
private int row = 1;
private int col = 1;
public static final int NUMBER_ROWS = 5;
public static final int NUMBER_COLS = 4;
public Seat(int row, int col) {
this.row = row;
this.col = col;
this.status = Status.FREE;
}
private Seat[][] hall = new Seat[NUMBER_ROWS + 1][NUMBER_COLS + 1];
public void initHall(){
Seat seat = new Seat(0,0);
for(int row = 1; row <= NUMBER_ROWS; row ++ ) {
for(int col = 1; col <= NUMBER_COLS; col ++ ) {
seat = new Seat(row,col);
hall[row][col] = seat;
if(row <= 4 && col < 3) {
seat.status = Status.RESERVED;
}
if(row >= 3 && col != 3) {
seat.status = Status.OCCUPIED;
}
}
}
}
public static void main(String[] args){
Seat seat = new Seat(0,0);
seat.initHall();
}
}``````

### Purpose of the Quiz

1. This is a practical example to learn some tricks and behaviors of Java multidimensional arrays.
2. This is a practical example of enumeration.
3. This will help you imagine how conditional statements change the results, as well as stretch your mind.
4. This provides an exercise to write a method to support your theory.

This quiz is aimed at intermediate to advanced Java programmers. Have fun! Let us know your thoughts in the comments!

Topics:
arrays, enumeration, java, multidimensional arrays, quiz

Comment (12)

Save
{{ articles[0].views | formatCount}} Views

Opinions expressed by DZone contributors are their own.