Initialising a 2D Array 📚

Preface 🐶

Whats the fun in creating a 2D array if we can't store stuff in it? 😛 Here we will learn how to create a 2D array with values already present in it. This operation is called initialisation.

Getting Started 🎉

So before we learnt we could create an array with 2 rows and 4 columns by the following:

int my_array[2][4];

But lets say that we want to initialise some values to it, specifically:

• The integers 1,2,3,4, in the first row
• The integers 5,6,7,8, in the second row

To do that we would use the following initialisation:

int my_array[2][4] = {
  {1, 2, 3, 4}, // First row
  {5, 6, 7, 8} // Second row
};

If we were to add another row, it could look something like this!

int my_array[3][4] = {
  {1, 2, 3, 4}, // First row
  {5, 6, 7, 8}, // Second row
  {9, 10, 11, 12} // Third row
};

If we were to add another column, it could look something like this!

int my_array[2][5] = {
  {1, 2, 3, 4, 5}, // First row
  {6, 7, 8, 9, 10}, // Second row
};

Quite nice right?

✅ Now lets get started on Accessing elements in an array 😎