building 2d array code example
Example 1: how to fill a 2d array in java
int rows = 5, column = 7;
int[][] arr = new int[rows][column];
for (int row = 0; row < arr.length; row++)
{
for (int col = 0; col < arr[row].length; col++)
{
arr[row][col] = 5;
}
}
Example 2: create a 2d array in python
def build_matrix(rows, cols):
matrix = []
for r in range(0, rows):
matrix.append([0 for c in range(0, cols)])
return matrix
if __name__ == '__main__':
build_matrix(6, 10)
Example 3: How to create a 2d array in java
int[][] arr = new int[m][n];
Example 4: declare matrix in java
int[][] multi = new int[5][];
multi[0] = new int[10];
multi[1] = new int[10];
multi[2] = new int[10];
multi[3] = new int[10];
multi[4] = new int[10];