5.1.1 Creating C Variables

• To create a variable first you define the data type. 
• After this you define an unique name.

/* Without value assignment */ <data-type> <variable-name>; /* With value assignment */ <data-type> <variable-name> = <variable-value>;

❖ For example, see the statement given below.

/* Variable declaration with value assignment */ int Age = 25;

• An integer variable has been created by this statement, which is named Age and this variable is assigned 25 values. 
• Let us now understand how the compiler executes this statement.
• When the compiler first executes the int, it allot the memory of 2 bytes of the computer's memory. 
• After this, when the compiler executes the age, it gives the name of memory of that 2 bytes to age. 
• After this, when compiler = 25 executes, then he stores 25 on this memory location.

❖ Now whenever you want to access this value, you can access it by age name.