The while loop is used to repeat a section ofcode an unknown number of times until a specific condition is met.For example, say we want to know how many times a givennumber can be divided by 2 before it is less than or equal to 1.additionally, keep a count of how many times we do thedivision..
Considering this, why would you use a for loop instead of a while loop?
A for loop runs for a pre-determined number oftimes. So, it can iterate through an array from start to finish,say, but it will only ever loop for that specific number. Awhile loop will carry on until a pre-determined scenariotakes place. That may happen immediately, or it may require ahundred iterations.
Beside above, why for loop is better than while loop? If you fail to put condition statement in forloop it will lead to an infinite iteration of a loopwhereas, if you fail to put condition statement in thewhile loop it will lead to compilation error. Theinitialization statement in the syntax of for loopexecutes only once at the start of the forloop.
Also Know, when should you use a while loop over a do loop?
Just use whichever loop seems moreappropriate to the task at hand. In general, you shoulduse a for loop when you know how many times theloop should run. If you want the loop to breakbased on a condition other than the number of times it runs, youshould use a while loop.
What is the purpose of a loop?
In computer programming, a loop is a sequence ofinstruction s that is continually repeated until a certaincondition is reached. Typically, a certain process is done, such asgetting an item of data and changing it, and then some condition ischecked such as whether a counter has reached a prescribednumber.
Related Question Answers
Why is a for loop better than a while loop?
The main reason that While is much slower isbecause the while loop checks the condition after eachiteration, so if you are going to write this code, just use a forloop instead.How does while loop work?
In most computer programming languages, a do whileloop is a control flow statement that executes a block of codeat least once, and then repeatedly executes the block, or not,depending on a given boolean condition at the end of the block. Ifit is true, the code executes the body of the loopagain.What's the difference between a while loop and a for loop?
3 Answers. The difference is that the do whileloop executes at least once because it checks for theloop condition while exiting. While is a entrycontrolled loop and do while is a exit controlloop. Whereas in do while loop it will enter theloop and will then check for the condition.What is a for loop and while loop?
Both for and while loops are entry controlledloops that means test condition is checked for truthwhile entering into the loop's body. The incrementdefines how the loop control variable changes each time theloop is repeated. The body of loop can either beempty or a single statement or a block of statements.How does a while loop work in C?
Introduction C while loop statement The C while loop is used when you want toexecute a block of code repeatedly with a checked condition beforemaking an iteration. The while loop executes as long as thegiven logical expression evaluates to true . When expressionevaluates to false , the loop stops.Why for loop is used in C programs?
C – for loop in C programmingwith example. A loop is used for executing a block ofstatements repeatedly until a given condition returnsfalse.Which is more efficient for loop or while loop?
Generally, the for loop can be moreefficient than the while loop, but not always. The ideaof the While loop is: While something is the case, dothe following block of code.What is the difference between for loop and while loop in C++?
The main difference between do while loop andwhile loop is in do while loop the condition is testedat the end of loop body, i.e do while loop is exitcontrolled whereas the other two loops are entry controlledloops. Note: In do while loop the loop bodywill execute at least once irrespective of testcondition.Which loop type is considered to be a post test loop?
Post-Test Loop This logic flow, by definition, is called apre-test loop because the condition is checked BEFOREthe statements in the loop are executed.What is a while loop in Python?
A while loop statement in Pythonprogramming language repeatedly executes a target statement as longas a given condition is true.Will a for loop always executes once?
Loop Body is Always Executed at LeastOnce. Since testing is done at the bottom of theloop, the loop body must execute at leastonce, regardless of conditions. Java does not "lookahead" to the condition that is tested. It executes theloop body, then tests the condition to see if it shouldexecute it again.Can a while loop be nested in a for loop?
In a nested loop, a break statement only stopsthe loop it is placed in. Therefore, if a break is placed inthe inner loop, the outer loop still continues.However, if the break is placed in the outer loop, all ofthe looping stops. 
