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Code Block

language	java
title	Strings Array in Java

int[][] cinema = new int[5][5]; 
for (int j = 0; j < cinema.length; j++) {
	for (int i = 0; i < cinema[j].length; i++) {
    	cinema[j][i] = 0;       
    }
}

Instead of one bracket used in one dimensional array, we will use two e.g. int[][] to define two-dimensional array.

Code Block

language	py
title	Strings Array in Python

cinema = []
for j in range(5):
	column = []
    for i in range(5):
		Column.append(0)
	Cinema.append(column)

In Python, we declare the 2D array (list) like a list of lists. First, we create an empty one-dimensional list. Then we generate 5 more lists (columns) using a for loop, fill each list with 5 zeros using a nested loop and add the list to the original list as a new item.

The first number indicates the number of columns, the second is the number of rows, we could treat it the other way around as well, for example, matrices in mathematics have the number of rows come first.

We've just created a table full of zeros.

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Code Block

language	java
title	Strings in Java	Filling the array in Java

cinema[2][2] = 1;
for (int i = 1; i < 4 ; i++) {
  	cinema[i][3] = 1; // the fourth row
}
for (int i = 0; i < 5 ; i++) {
    cinema[i][4] = 1; // the last row
}

Code Block

language	py
title	Strings Filling the array in Python

cinema[2, 2] = 1 # center
for i in range(1, 4): # fourth row
        cinema[i][3] = 1
for i in range(5): # the last row
        cinema[i][4] = 1

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Code Block

language	java
title	Output in Java

 int cols = cinema.length;
int rows = cinema[0].length;
for (int j = 0; j < cols; j++) {
  	for (int i = 0; i < rows; i++) {
     	System.out.print(cinema[i][j]);
    }
    System.out.println("");
}

Code Block

language	py
title	Output in Python

cols = len(cinema)
rows = 0
if cols:
	rows = len(cinema[0])
for j in range(rows):
    for i in range(cols):
     	print(cinema[i][j], end = "")
    print()

Output in both cases would be:

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