Mastering C Loops

What is the basic syntax of a while loop in C?

• while { // code to be executed }

• while(condition) // code to be executed

• while(condition) { // code to be executed }

• while(condition) : // code to be executed

How do you declare a for loop in C?

• for(initialization; increment; condition) { // code to execute }

• for(increment; condition) { // code to execute }

• for(condition; initialization; increment) { // code to execute }

• for(initialization; condition; increment) { // code to execute }

What is the purpose of the do while loop in C?

• To execute a block of code only if the condition is true.

• To execute a block of code at least once and repeat it based on a condition.

• To execute a block of code based on user input.

• To create an infinite loop without any condition.

Explain the difference between a while loop and a do while loop.

• Both loops execute the same number of times regardless of the condition.

• A while loop always executes at least once, while a do while loop may not execute at all.

• A while loop is used for infinite loops, while a do while loop is used for conditional loops.

• The main difference is that a while loop may not execute at all if the condition is false, while a do while loop always executes at least once.

What control statement can be used to exit a loop prematurely?

• exit

• continue

• break

• return

How can you skip an iteration in a loop?

• Use a return statement to skip the iteration.

• Use the 'continue' statement in the loop.

• Use the 'exit' command to terminate the loop.

• Use the 'break' statement in the loop.

What is a nested loop? Provide an example.

• A loop that does not contain any other loops

• Example of a nested loop in Python: for i in range(3): for j in range(2): print(i, j)

• A loop that runs only once

• A loop that iterates over a single list

How do you loop through an array using a for loop?

• for (let i = 0; i < array.length; i++) { print(array[i]); }

• for (let i = 1; i <= array.length; i++) { console.log(array[i]); }

• for (let i = 0; i < array.length; i++) { console.log(array[i]); }

• for (i = 0; i < array.length; i++) { console.log(i); }

What happens if the condition in a while loop is never met?

• The while loop will execute once.

• The while loop will execute indefinitely.

• The while loop will not execute.

• The while loop will skip to the next iteration.

Can you use a for loop to iterate through a multidimensional array?

• Yes, a for loop can be used to iterate through a multidimensional array.

• For loops can only iterate through one-dimensional arrays.

• You can only use while loops for multidimensional arrays.

• No, a for loop cannot be used for multidimensional arrays.