Variable Initialization

In the previous exercise we learned to declare variables. Now let's look at how to assign values to them - how to initialize them.

We can perform initialization in two ways:

1. Declaration and initialization on two lines:

int number;      // First we declare
number = 42;     // Then we initialize

2. Declaration and initialization on one line:

int number = 42;  // Declaration and initialization at once

Examples of initializing different types of variables:

int whole = 42;           // Whole number
double decimal = 3.14;    // Decimal number
char character = 'A';     // One character
bool truth = true;        // Boolean value

If we only declare a variable without initialization, its value is not defined and may contain a random value. Therefore it's a good practice to always initialize variables when declaring them.