Скачать или смотреть C++ Programming Tutorial 5 Variable Declaration Initialization Sinhala - Sandun Sampath Vitharana

There are basically two steps when creating a variable.
Declaration.
Initialization.

Declaration:
You define the data type and the name of the variable. Example:
int num1;
int num2;

Although we created the variables they cannot be used as they have no value so we then need to declare them as follows. num1 = 100;
num2 = 156;

Initialization:The process of giving a value to the variable is called initialization.
There are many methods to create variables for example the below example declares & initializes the variable in a single line.
Now lets revise the methods to create variables.
Method 1
int x;
X =100;
Here we declared the variable and initialized them in 2 different lines.

Method 2
int x = 100;
In this case both declaration and initialization is done in the same line.
from both the methods be have the same result, But in programming we sometime need both these methods to create variables according to the problem we are expected to deal.

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