C#•3y ago

✅ How can I print a 2D array

I have a 2D array, how can i print each row of the array, on console

24 Replies

idris_2020OP•3y ago

The array will not get bigger or small, I just need to change the contents

int[,] cinemaSeats = 
            { 
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0}, 
            };

int[,] cinemaSeats = 
            { 
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0},
                {0, 0, 0, 0, 0, 0}, 
            };

this is the array

Gooster•3y ago

print it like 0000000 0000000 0000000 etc?

idris_2020OP•3y ago

yeah i made code but only prints first row

Gooster•3y ago

show me

Anton•3y ago

with two for loops

idris_2020OP•3y ago

            Console.Write("| ");
            for (int i = 0; i < cinemaSeats.Length; i++)
            {
                Console.Write(cinemaSeats[i,i]);
                if (i < cinemaSeats.Length - 1)
                {
                    Console.Write(" | ");
                }
            }

            Console.Write("| ");
            for (int i = 0; i < cinemaSeats.Length; i++)
            {
                Console.Write(cinemaSeats[i,i]);
                if (i < cinemaSeats.Length - 1)
                {
                    Console.Write(" | ");
                }
            }

Gooster•3y ago

ah yes youre printing out only a diognal [i,i] do you see the problem?

idris_2020OP•3y ago

i tried i by itself but doesnt work

Gooster•3y ago

you need [0,1] [0,2] [0,3] [1,0] [1,1] [1,2] etc not [0,0] [1,1] [2,2] like youre doing now

idris_2020OP•3y ago

yeah so would i need to like iterate i make another for loop?

Gooster•3y ago

yes a loop for x and a loop for y

.•3y ago

for (int i = 0; i < array.GetLength(0); i++) { for (int j = 0; j < array.GetLength(1); j++) { int element = array[i, j]; Console.WriteLine(element); } }

idris_2020OP•3y ago

yeah im doing that rn

Gooster•3y ago

dont spoil everything

.•3y ago

And why did you create array in this way?

Gooster•3y ago

why not?

idris_2020OP•3y ago

basically i need to make a cinema seat booking program (as you can tell from the array name) 0 represents an empty seat and the seats are 6x8

.•3y ago

I didn't, look at the printing

Gooster•3y ago

okay if you used an array like bool[][] which is an array of bool arrays instead of a 2d array then i would suggest for (bla bla length) // goes trough the array of arrays Console.WriteLine(string.Join(null, seats[i])); // prints the whole array

.•3y ago

int[,] array = new int[6, 8];

int[,] array = new int[6, 8];

Gooster•3y ago

yeah ok that would also set the whole thing to 0

.•3y ago

You can have other default values too

idris_2020OP•3y ago

i need them to be stored at different values even if they all start at 0 done ty for help

Accord•3y ago

Closed!

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✅ How can I print a 2D array

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