Pascal - Case Else Statement

The case-else statement uses an else term after the case labels, just like an if-then-else construct.

Syntax:

The syntax for the case-else statement is:

case (expression) of
   L1 : S1;
   L2 : S2;
   ...
   ...
   Ln: Sn;
else
   Sm;
end;

Flow Diagram:

Example:

The following example illustrates the concept

program checkCase;
var
   grade: char;
begin
   grade := 'F';
   case (grade) of
      'A' : writeln('Excellent!' );
     
      'B', 'C': writeln('Well done' );
      'D' : writeln('You passed' );

   else
      writeln('You really did not study right!' );
    end;     
   writeln('Your grade is  ', grade );
end.

When the above code is compiled and executed, it produces following result:

You really did not study right!
Your grade is F