In this section, we will learn about the built-in types in C and variable declarations.
3.1 Declarations
A declaration declares a (variable) name. When we declare a variable, we specify its type and variable’s name. When we declare a variable, the compiler reserves memory for our variable. This occupied space is called an object or data object in memory. These data objects are accessed by names we call variables. We need to declare a variable before we can use it. To declare a variable, we put the type_name before the variable_name and end the entire statement with a semicolon ...
