What are the procedures and functions used in Pascals?

What are the procedures and functions used in Pascals?

- Procedures and functions both are different in their own sense and both are required the program construct.

- Procedures and functions are the main part of the logical block and they can be nested to any depth in the code.

- It has its own declarations like goto labels, constants, types, variables and other defining entity that allow them to keep every function in order.

- The ordering of the functions are required to allow the efficient compilation process using the single pass.

- The example of it is shown below:

program Mine(output);

var i : integer;

procedure Print(var j : integer);
begin
...
end;

begin
...
Print(i);
end