Kontrollblocks

Kontrollblocks, also known as control blocks, are a fundamental concept in programming, particularly in structured programming paradigms. They are constructs that dictate the flow of execution within a program. Instead of executing statements sequentially from top to bottom, control blocks allow programmers to introduce logic that determines which parts of the code are run, how many times, and under what conditions.

The most common types of control blocks include conditional statements and loops. Conditional statements, such as "if-then-else" structures, enable a program to make decisions. The code within an "if" block is executed only if a specified condition evaluates to true. An "else" block, if present, is executed if the condition is false. This allows for branching logic, where different paths of execution are taken based on variable values or other program states.

Loops, such as "for" and "while" loops, are used to repeat a block of code multiple times. A "for" loop is typically used when the number of repetitions is known in advance, iterating over a sequence or a range of values. A "while" loop, on the other hand, continues to execute its block of code as long as a specified condition remains true. This is useful when the number of iterations is not predetermined but depends on some runtime condition. Together, control blocks provide the essential mechanisms for creating dynamic and responsive software.