So value of variable x =8. while loop is an entry controlled looping construct. What happens to a Chain lighting with invalid primary target and valid secondary targets? Easily attend exams after reading these Multiple Choice Questions. Solve question related to C - Loop and loop. Looping questions and answers with explanation for written test exam and interview in c programming language. Is there any difference between "take the initiative" and "show initiative"? if loop condition is true. So program control will also come out of the outer do-while loop. Hence program control will come out of the for loop. This is done in order to personalize and enhance your experience with us. Out of the box, thinking plays a major role while answering them. (5) What will be output of following c code? OK, No problem here. What will be the output of the following code? i < x i.e. Easily attend exams after reading these Multiple Choice Questions. Write a C program to print all natural numbers in reverse (from n to 1). Can playing an opening that violates many opening principles be bad for positional understanding? In C zero means false. while(!ready) { /* Wait for some other thread to set ready */ } ... is a really, really, expensive way to wait -- it'll use as much CPU as the OS will give it, for as long as ready is false, stealing CPU time with which the other thread could be doing useful work.. The loop iterates while the condition is true. Why are floating point numbers inaccurate? 63. Why battery voltage is lower than system/alternator voltage. loop condition is true. Why is “while ( !feof (file) )” always wrong? Your email address will not be published. When the user enters a negative number, the loop terminates. C program to calculate factorial using "while loop". Go to the editor Sample Output: Input the base: 2 Input the exponent: 5 2 ^ 5 = 32 Click me to see the sample solution. Hi, I am Mohit Arora , a passionate blogger and addicted reader. if loop condition is true. We'll assume you're ok with this, but you can opt-out if you wish. A while that does nothing probably is a bad thing:. Tricky for Loop [closed] Ask Question Asked 8 years, 4 months ago. and if I were to edit I would have used int() instead of round(), but looking at your suggestion I looked up the differences and learned a little more. This may seem easy but beginners may get puzzled while printing text within double quotes. - using while loop; Write a C program to print all odd number between 1 to 100. C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. 0. Its equivalent decimal value is 9. i < x i.e. Der Schleifen-Block wird also solange wiederholt ausgeführt, wie der Wert der Variablen i kleiner oder gleich 100 ist. I am bothered by a question of for loop in C language. Example 2: while loop to compute sum of first 5 natural numbers using System; namespace Loop { class WhileLoop { public static void Main(string[] args) { int i=1, sum=0; while (i<=5) { sum += i; i++; } Console.WriteLine("Sum = {0}", sum); } } } When we run the program, the output will be: Sum = 15. Answer : a. Viewed 94 times 2. C Programming Questions and Answers has been designed with a special intention of helping students and professionals preparing for various Certification Exams and Job Interviews.This section provides a useful collection of sample Interview Questions and Multiple Choice Questions (MCQs) and their answers with appropriate explanations. (3) What will be output of following c code? i = 2 + 1 =3. Following are the some basic tricky questions in C language. C Program to print Multiplication table using do-while loop. Even when just learning or writing example code get into the habit of doing it right.Trying to get numbers to add up correctly while an angry accountant yells at you 45 minutes before midnight at the turn of the month is not fun (especially when it's someone elses code). Due to break keyword program control will come out of the for loop. - using while loop; Write a C program to print all alphabets from a to z. Why would the ages on a 1877 Marriage Certificate be so wrong. MongoDB Projection Tutorial : Return Specific Fields From Query, MongoDB Index Tutorial – Create Index & MongoDB Index Types, Downloading & Installing MongoDB on Windows & MAC. MongoDB Operators Tutorial – What are Different Operators Available? This site uses Akismet to reduce spam. Never use floating point to do currency calculations. c) GeeksQuiz is printed 7 times d) GeeksQuiz is printed 4 times. PostGIS Voronoi Polygons with extend_to parameter. E 101, SRK Silicana Apartments, How to emulate a do-while loop in Python? Go through C Theory Notes on Loops before studying questions. I have read and accepted the Privacy Policy *. Is it possible for an isolated island nation to reach early-modern (early 1700s European) technology levels? For loop condition: i = -1 . However your loop is not doing nothing: Powered By. C program to find HCF and LCM of two integers. (4)What will be output of following c code? I am a beginner and this is (a simplified version of) part of a code I am writing: 1.prompt user to input a number (float dollar amount), lets say user will only key in amount which are multiples of 0.05 ; 2.calculate the (int)number of nickels in that dollar amount. Floating points are never exactly accurate, try calculating, Look at the answer, it's not quite accurate. This program computes the sum of first 5 natural numbers. This section focuses on the "Structure And Loops" of the C programming. 62. Interview Questions on Loops in C++ : (20) Questions . The is no bug in your code in the strictest sense as the underlying reasoning is correct; however note that the value 0.35 cannot be represented exactly in the float datatype, the same holds for 0.05; as the division (what basically is the sematics of the code in the question) is implemented via repeated subtraction, the error caused by the inability to exactly represent the desired values accumulates. Flow Diagram. Concept behind these four lines of tricky C code, Need to return a value from a do/while and multiple while loops - C, Track and print amount of times the while loop was used, Sub-string Extractor with Specific Keywords. There are 3 loops in C++, for, while, do-while. Why use apparently meaningless do-while and if-else statements in macros? Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. if loop condition is true. 1, In c 1 means true so while condition is true. 0 < 9  i.e. These Multiple Choice Questions (mcq) should be practiced to improve the C programming skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations. But opting out of some of these cookies may affect your browsing experience. Here, the key point to note is that a while loop might not execute at all. So while loop condition is true. Tricky questions are based on common sense and logic. This is done in order to. Floating point is not designed to work for currency and will cause results that are wrong, inaccurate and sometimes even illegal. — i : ++j, So ternary operator will return -–i i.e. Thanks again. - using while loop; Write a C program to print all even numbers between 1 to 100. Learn how your comment data is processed. This question already has answers here: Why are floating point numbers inaccurate? Currently working as a Technology Analyst in INFOSYS Ltd. Hence program control will come out of the for loop. EDIT: cmaster showed me that using floor() didn't work, using $0.57 as input, when using 'double' variables (not float), $0.57 converted to (long) 56! You are hitting up against floating point rounding. 0. C program to calculate factorial using "function". i = 3 + 1 = 4 i.e. How are you supposed to react when emotionally charged (for right reasons) people make inappropriate racial remarks? 67 --> C 68 --> D 69 --> E 70 --> F 71 --> G 72 --> H 73 --> I 74 --> J 75 --> K Click me to see the sample solution. C Program to print Multiplication table using while loop. = 1 && 2 //In c any non-zero number represents true. The Loop #1: How we conduct research on the Community team ... Concept behind these four lines of tricky C code. Interview Questions on loops in C - for, while & do-while. We also use cookies and/or similar technologies to analyze customer behaviour, administer the website, track users' movements, and to collect information about users. -2 = 0. when i write: #include #include main() { int i = 0; for( ; i ; ) { printf("In for Loop"); } getch(); } Output: NOTHING PRINT. Dies ist auch unser Kontrollpunkt. All the data shown above will be stored by TutorialsJar on, time, you can contact us and select the data you wish to, or delete so it cannot be linked to your email address any longer. - using while loop; Write a C program to print all alphabets from a to z. Since the value of the variable var is same (there is no ++ or – operator used on this variable, inside the body of loop) the condition var<=2 will be true forever and the loop would never terminate. Thanks so much for your time! MongoDB vs RDBMS? Join Stack Overflow to learn, share knowledge, and build your career. Generate IP (Internet Protocol) Addresses Using; Print Multiplication Table Using; Sort A Float Array In Ascending And Descending Order Using; Find GCD of two Numbers Using ; Switch Case- C Programming Questions and Answers List. In this article. your coworkers to find and share information. Necessary cookies are absolutely essential for the website to function properly. At any point of time, you can contact us and select the data you wish to anonymize or delete so it cannot be linked to your email address any longer. i = 0 + 1 = 1, For loop condition: ++i i.e. In outer do-while loop while condition is 0. Here is a list of such programs :-Print text within double quotes (” “). Go through C Theory Notes on Loops before studying questions. Here you will get nested looping (loop within loop) programs. This way, you get rid of all 'rounding' issues. So while loop condition is false. Flow Diagram. Write a program in C++ to find power of any number using for loop. Example. Hence program control will come out of the while loop. Note: %o is used to print the number in octal format. Barrel Adjuster Strategy - What's the best way to use barrel adjusters? How to label resources belonging to users in a two-sided marketplace? #include, Default value of static int variable in c is zero. This is terrible, but it is a matter of fact. Active 2 years, 8 months ago. 5. Notify me of follow-up comments by email. Write a C program to print all natural numbers in reverse (from n to 1). Check out the questions below along with their answers: These are MCQ type Aptitude Questions and Answers with Explanation. What is the point of reading classics over modern treatments? How are we doing? In c zero means false so while condition is false. :). We use while loop to repeat set of statements when number of iterations are not known prior to its execution. Since -1 is non- zero number. i < x i.e. Finally, the total sum is displayed. Loops execute a series of statements until a condition is met or satisfied. Looping is the process by which you can give instruction to the compiler to execute a code segment repeatedly, here you will find programs related to c looping – programs using for, while and do while. The loop iterates while the condition is true. Ask a Question Home » C programs. rev 2021.1.8.38287. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. C Program to print Multiplication table using while loop. It provides flexibility to define loop without initialization and update parts (present in for loop). Solve question related to Cpp - Loops. C Programming Multiple Choice Question - Structure And Loops. Your email address will not be published. i = 1 + 1 = 2 i.e. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. admin@tutorialsjar.com. C program to calculate factorial using "function". Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. - using while loop; Write a C program to print all even numbers between 1 to 100. The while loop continues until the user enters a negative number. Hence printf statement will print 1, So ternary operator will return -–i i.e. In programming to iterate over the same block of code multiple times, there are a few methods. Stack Overflow for Teams is a private, secure spot for you and Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide. This category only includes cookies that ensures basic functionalities and security features of the website. Most efficient and feasible non-rocket spacelaunch methods moving into the future? He supplied code and I couldn't believe my eyes! Loops help in not writing the same code again & again. loop condition is true. In inner do- while loop while condition is ! Hence printf function will print value of i = 1 and j = 3 (Due to post increment operator). May be in technical interviews, coding tests, or in C/C++ classrooms. Here variable x is extern type. C program to find HCF and LCM of two integers. These cookies do not store any personal information. Why did Michael wait 21 days to come to help the angel that was sent to Daniel? Once n = 11, the loop condition while(n <= 10) gets false and loop terminate. Since is equal to for so if condition is also true. All 100 questions are compiled before uploading on cppbuzz.com. 011 is octal number. Blog Last minute gift ideas for the programmer in your life. For loop condition: ++i i.e. Finding nearest street name from selected point using ArcPy. Do firbolg clerics have access to the giant pantheon? How do digital function generators generate precise frequencies? That is again false. So program control will reach  at printf statement at it will print octal number 10 which is equal to decimal number 8. (2) What will be output of following c code? This Page has various questions. Code get executed, but printf statement didn't print due to condition. Browse other questions tagged c while-loop or ask your own question. Even if Democrats have control of the senate, won't new legislation just be blocked with a filibuster? #include extern int x; Read More » So, initial value of variable i = 0, For loop starts value: ++i i.e. Looping statements whose condition is checked prior to the execution of its body is called as Entry controlled loop. Looping questions and answers with explanation for written test exam and interview . If a macro needs to be expanded in multiple lines, it is the best practice to write those lines within do{ }while(0) to avoid macro side effects. All the data shown above will be stored by TutorialsJar on https://www.tutorialsjar.com/. What went wrong? When your data is anonymized or deleted, you will receive an email confirmation. Let’s see how we can use the recursive calls to print numbers from 1 to 10. These cookies will be stored in your browser only with your consent. The float datatype is not suitable for financial calculations, even in such a very small everyday example. Take integer inputs from user until he/she presses q ( Ask to press q to quit after every integer input ). There are two do-while loops in the above code. Since n++; is last statement of loop body hence, program control is transferred back to loop condition while(n <= 10). These are MCQ type Aptitude Questions and Answers with Explanation. Hence printf statement will print 2, Loop incrimination: ++I i.e. Easily attend exams after reading these Multiple Choice Questions. It is mandatory to procure user consent prior to running these cookies on your website. (7) What will be output of following c code? C programming Looping Aptitude Questions and Answers – Looping (while, for, do while) Aptitude Questions and Answers in C programming for beginners and experienced. C program to find factorial using for loop. -1. Following are the some basic tricky questions in C language. (6 answers) Closed 2 years ago. Since, the condition is false, the loop gets terminated. Then, change your code to compare against 5 cents, not $0.05, and to reduce by 5 cents, not $0.05. C programming Looping (while, do while, for) programs. C program to find factorial using for loop. while scanning .35 amount as float the actual amount value is 0.3499, site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Interview question and ans on Loops in C++ - loops are used to execute programming statements n number of times. 9 < 9 i.e. Due to continue keyword program control will come at the beginning of the for loop and value of variable i will be: i < x i.e. Podcast 302: Programming in PowerPoint can teach you a few things. This is a dirty, hacky workaround, not a fix! Although they are hard, it is possible to answer them with some practice and knowledge. Why should we use the fundamental definition of derivative while checking differentiability? Loops execute a series of statements until a condition is met or satisfied. Hence program control will come out of the inner do-while loop. 6 < 9 i.e. Use integers to count cents and check what your laws say about rounding. What will be output of following c code? C while loop tricky exceptions [duplicate]. CppBuzz.com: Home C C++ Java Python Perl PHP SQL JavaScript Linux Selenium QT Online Test ☰ Home » C++ » Interview Questions on Loops in C++. The while statement executes a statement or a block of statements while a specified Boolean expression evaluates to true.Because that expression is evaluated before each execution of the loop, a while loop executes zero or more times. Every MCQ has 4 objective & 1 correct answer. AS we know do-while executes at least one time even that condition is false. Why are elementwise additions much faster in separate loops than in a combined loop? The program is an example of infinite while loop. They are − Using loops; Using goto statements; Using recursive functions; Since you can’t use loops or goto statements, the only valid method is using the recursive functions. So, if condition is true. Consider the while loop condition: i + 1 ? I did step by step printing, and it turns out that for any amount between 0.35 and 1.15, the program stops at the last 0.050000, instead of going back to the loop and loop it one last time. A three digit number is called Armstrong number if sum of cube of its digit is equal to number itself. Learn C Programming MCQ Questions and Answers on Loops like While Loop, For Loop and Do While Loop. We may come across various tricky programs in our day to day life. During each iteration, the number entered by the user is added to the sum variable. Danach beginnt eine while Schleife, in den Klammern ist die Durchlauf-Bedingung gesetzt. Here, the key point to note is that a while loop might not execute at all. This website uses cookies to improve your experience while you navigate through the website. What’s The Difference Between Them. The result is that the number of subtractions is different from the analytically expected result, as the termination condition is reached too soon. Live Demo. if loop condition is false. Hence printf statement will print 4. But due to break keyword program control will come out of the for loop. Thanks Codor for the explanation, I understand now and will not use float in this type of situations again :), I see, thanks Lyall Pearce, this is very helpful! Doddathoguru, Electronics City Phase 1, Bengalurur - 560100, Karnataka Need to return a value from a do/while and multiple while loops - C… Syntax for a single-line Bash infinite while loop. C Puzzle Programs, C Tricky Programs – C programs - This section contains many C language Puzzles related programs, these programs are solved by using tricks – these all are Tricky C programs. C while loop tricky exceptions [duplicate] Ask Question Asked 2 years, 8 months ago. Do-While Loop Questions List For Loop Questions List . (adsbygoogle = window.adsbygoogle || []).push({}); Enter your email address to subscribe to this blog and receive notifications of new posts by email. It works for any amount <=0.3 or >=1.2 (so $2 has 40 nickels, and $0.30 has 6 nickels); but one nickel less for any amount between/including 0.35 and 1.15 (so $0.35 has 6 nickels, and $1 has 19 nickels). They test one’s knowledge and brainpower. - using while loop; Write a C program to print all odd number between 1 to 100. Your best bet is to accept the input, convert it to an integer (ie, cents) by multiplying by 100, removing any decimals using round() and assigning to a long. while (boolean-expression) statement; where while is a reserved word, boolean-expression is an expression that evaluates to true or false, and statement is a C++ statement, or a group of statements enclosed by curly braces (a compound statement). You also have the option to opt-out of these cookies. Please help us improve Stack Overflow. This website uses cookies to improve your experience. Where does the law of conservation of momentum apply? After GeeksQuiz is printed once, the control reaches the while statement to check for the condition. C program to calculate factorial using "while loop". Required fields are marked *. When your data is, or deleted, you will receive an email confirmation. C Program to print Multiplication table using do-while loop. So it will search the definition of variable x. which is present at the end of the code. Loops execute a series of statements until a condition is met or satisfied. Following are the some basic tricky questions in C language. Hence printf function will print value of variable i i.e. Again loop condition is checked for n=2 and last step 2-4 are repeated with new value of n till (n <= 10). I will bear in mind the floating point rounding for future :). We also use cookies and/or similar technologies to, , administer the website, track users' movements, and to collect information about users. (6) What will be output of following c code? C++ do...while Loop . Tricky Questions And Answers. We also use third-party cookies that help us analyze and understand how you use this website. Copyright © 2019 TutorialsJar. Go through C Theory Notes on Loops before studying questions. This page contains real 100 MCQs on C programming. Übersetzen wir den Schleifen-Befehl ins Deutsche, hört sich das etwa so an: „solange i kleiner gleich 100″. When the condition becomes false, the program control passes to the line immediately following the loop. So loop condition true. Since variable i is not equal to 1. 3 < 9 i.e. Looping questions and answers with explanation for written test exam and interview in c programming language. Explanation : When the control come to inner loop, condition will always be true as j is less than 1 and it will break the inner loop. When the condition becomes false, the program control passes to the line immediately following the loop. By TutorialsJar on https: //www.tutorialsjar.com/ objective & 1 correct answer check out questions... Page contains real 100 MCQs on c programming MCQ questions and answers with explanation for test. Octal number 10 which is equal to for so if condition is false, the control reaches while! Share knowledge, and build your career 3 ) What will be output of following c code, get. Research on the Community team... Concept behind these four lines of tricky c.. Present at the answer, it is a dirty, hacky workaround, not a!! Positional understanding written test exam and interview in c language City Phase 1, Bengalurur - 560100, Karnataka @! Would the ages on a 1877 Marriage Certificate be so wrong firbolg clerics have access while loop tricky questions in c the immediately! To a Chain lighting with invalid primary target and valid secondary targets loop..., thinking plays a major role while answering them bothered by a question of loop! Function properly questions are compiled before uploading on cppbuzz.com have the option to opt-out of these cookies be... Result, as the termination condition is met or satisfied while condition is checked prior to running these cookies your! We 'll assume you 're ok with this, but it is a bad thing: not suitable for calculations... Doing nothing: while loop, for ) programs — i: ++j, so ternary operator will -–i. 100 MCQs on c programming MCQ questions and answers with explanation for written test and. Reaches the while statement to check for the condition in for loop compiled before uploading on cppbuzz.com tests.: programming in PowerPoint can teach you a few things faster in Loops. 'S the best way to use barrel while loop tricky questions in c is zero Chain lighting with invalid primary and... Below along with their answers: the program control will come out of the c programming looping while... Are floating point numbers inaccurate loop # 1: how we conduct research on the team! Means false so while condition is checked prior to its execution in a combined loop data is, deleted! Results that are wrong, inaccurate and sometimes even illegal equal to decimal number 8 if have! With some practice and knowledge compiled before uploading on cppbuzz.com not quite accurate the for loop [ closed Ask! Execution of its body is called Armstrong number if sum of cube of its digit is to. User enters a negative number, the program control passes to the line following! On Loops before studying questions consider the while loop calls to print all natural numbers reverse... While answering them loop continues until the user enters a negative number, the key to! Is the point of reading classics over modern treatments are absolutely essential for the condition becomes false the! Loops in while loop tricky questions in c, for loop the senate, wo n't new legislation just be blocked with a?. Iterations are not while loop tricky questions in c prior to running these cookies will be output of following c code,. The box, thinking plays a major role while answering them combined?...: -Print text within double quotes results that are wrong, inaccurate and sometimes even illegal playing an opening violates. Entered by the user enters a negative number before studying questions modern treatments checking differentiability, Electronics Phase... Way, you will receive an email confirmation you a few things is while loop tricky questions in c from analytically! Int variable in c programming language entry controlled looping construct it provides flexibility to loop! From n to 1 ) will receive an email confirmation Chain lighting with invalid primary target and valid secondary?... As the termination condition is reached too soon Variablen i kleiner gleich 100″ computes the sum variable floating points never. Cookies that help us analyze and understand how you use this website numbers from 1 to 100 will... Repeat set of statements until a condition is checked prior to its execution to label resources to... With their answers: the program control passes to the sum variable use... Called as entry controlled loop is false is the point of reading classics modern... ( file ) ) ” always wrong find power of any number using for loop in c programming.! A c program to print all odd number between 1 to 100 times d ) GeeksQuiz is 4! ( Ask to press q to quit after every integer input ) even illegal that a while loop ; a! But printf statement at it will print 2, loop incrimination: ++i i.e already has here. Use integers to count cents and check What your laws say about.. And addicted reader printing text within double quotes ( ” “ ) reached too soon sum of 5! Points are never exactly accurate, try calculating, Look at the answer, it 's not accurate. 2 ) What will be output of following c code 0 + 1 = 1, Bengalurur - 560100 Karnataka. From the analytically expected result, as the termination condition is false, the condition related to c -,. ++J, so ternary operator will return -–i i.e oder gleich 100 ist correct answer times, there are Loops. Reach early-modern ( early 1700s European ) Technology levels nation to reach early-modern ( 1700s... The while loop tricky questions in c on a 1877 Marriage Certificate be so wrong the point reading! 100 questions are based on common sense and logic set of statements a. C Theory Notes on Loops in C++, for loop of code Multiple,! You navigate through the website point to note is that the number entered by the user enters a number! Opening that violates many opening principles be bad for positional understanding navigate through website. For, while & do-while double quotes ( ” “ ) number.... Of subtractions is Different from the analytically expected result, as the termination is... Update parts ( present in for loop and loop also solange wiederholt ausgeführt, wie der Wert Variablen! Ensures basic functionalities and security features of the while loop to repeat set of until... This is done in order to personalize and enhance your experience with us admin @ tutorialsjar.com value of i 1... To quit after every integer input ) meaningless do-while and if-else statements in macros basic tricky in... & 1 correct answer Teams is a dirty, hacky workaround, not a!... Opening that violates many opening principles be bad for positional understanding the law of conservation of momentum apply but is.