case of pascal
Pascal Language: Understanding the Case Structure
The case statement in Pascal allows for the selection of a code block based on the value of an expression. It provides a way to streamline conditional branching and can be particularly useful when dealing with multiple possible values for a variable.
Here's the basic syntax for a case statement in Pascal:
case expression of
value1: begin
// code block for value1
end;
value2: begin
// code block for value2
end;
// more value cases as needed
else
// default code block
end;
In this structure, the expression is evaluated, and the corresponding code block for the matching value is executed. If none of the specified values match the expression, the code within the else
block, if present, is executed as the default case.
It's important to note that each code block is enclosed within begin
and end
statements to define the scope of the code to be executed for each value.
Overall, the case statement in Pascal provides a clean and efficient way to handle multiple conditional branches based on the value of an expression.