Question

What is a count-controlled loop?

Short answer

Answer: A count-controlled loop is a programming concept used to execute a block of code a specific number of times, determined by a counter variable. It is useful when you know how many times you want to execute a specific piece of code. In Python, a count-controlled loop can be implemented using the "for" loop. For example: ```python # We want to print numbers from 1 to 5 for i in range(1, 6): print(i) ``` In this example, the "for" loop iterates through a sequence of numbers from 1 to 5, printing each number, and terminates when there are no more numbers left in the sequence.

Step-by-step solution

Definition of Count-Controlled Loop

A count-controlled loop is a programming concept used to execute a block of code a specific number of times, determined by a counter variable. The counter is usually initialized before the loop, incremented (or decremented) for each iteration, and tested (loop condition) to determine whether the loop should continue or terminate. Common examples of count-controlled loops are "for" loops in languages like Python, Java, and C++.

Usage of Count-Controlled Loop

Count-controlled loops are useful when you know how many times you want to execute a specific piece of code. Some examples where you might use count-controlled loops are to iterate through a list of specific length, print tables of a certain range, or run a program for a fixed number of times.

Example in Python

In Python, a count-controlled loop can be implemented using the "for" loop. Here's an example: ```python # We want to print numbers from 1 to 5 for i in range(1, 6): print(i) ``` In this example, `i` is the counter variable. The `range(1, 6)` function generates a sequence of numbers from 1 to 5 (6 is exclusive). The "for" loop iterates through this sequence, printing each number in the sequence. The loop will terminate when there are no more numbers left in the sequence.