Program to Find the Factorial of the Number using Recursion in Java by Deepak

[@SmartProgramming]

🚩🌳Professional Courses + Projects (Upto 80% off) 🌳 courses.smartprogramming.in 🔴 Core Java Playlist : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b 🔴 Advance Java Playlist : kzbin.info/aero/PLlhM4lkb2sEjVsbbZ_kiixY5CcR84IQUg 🔴 Android Playlist : kzbin.info/aero/PLlhM4lkb2sEhdllbTIVF0rzD0coCiuHok ===================================== ▶ Core Java Chapter-wise Playlist ◀ ⭕ 9. Collection Framework in Java | Java Data Structure : kzbin.info/aero/PLlhM4lkb2sEiOcuH1g-CUuU288qmMNpyj ⭕ 8. Multithreading in Java : kzbin.info/aero/PLlhM4lkb2sEh1pBs0KBb63PlKKqRx6M1a ⭕ 7. Strings In Java : kzbin.info/aero/PLlhM4lkb2sEh8AARH5oEivYOrMgaVsPFb ⭕ 6. Exception Handling : kzbin.info/aero/PLlhM4lkb2sEjaU-JAASDG4Tdwpf-JFARN ⭕ 5. OOP's Concepts : kzbin.info/aero/PLlhM4lkb2sEhf5NlWeYh_gdcN49pHjVP0 ⭕ 4. Arrays in Java : kzbin.info/aero/PLlhM4lkb2sEi4UoqSmobDeA5VNI1f2w3C ⭕ 3. Control Statements : kzbin.info/aero/PLlhM4lkb2sEgQmNKO43i7v60no4bdc3lI ⭕ 2. Java Introduction : kzbin.info/aero/PLlhM4lkb2sEj6zsK25K9f15qNUATqYxGq ⭕ 1. Programming Basic Terminologies : kzbin.info/aero/PLlhM4lkb2sEhwPZhFmlox57kaCgMm5UgC ===================================== ▶Advance Java Chapter-wise Playlist ◀ ⭕ 1. JDBC (Java Database Connectivity) with MySQL : kzbin.info/aero/PLlhM4lkb2sEjDXBqaYbwAoDAQKh2yczR7 ⭕ 2. Servlet & JSP Tutorials for Beginners : kzbin.info/aero/PLlhM4lkb2sEiiEAP0uSFXiFY8KdXPnN0f

[@nityanand9194]

Thank you so much sir❤ this java series really helped me in my interview and I cleared many interviews and now I have 4 offer letters...one is from Infosys 😍 I heartly grateful ... ❤

[@manishkesharwani7271]

Expect this this I understood all previous topics

[@pkay37]

best teacher for computer applications

[@aishwarya589]

Hi Deepak, Really appreciate your hard work and dedication ...Thank you for such a wonderful tutorial. :) I have a query regarding the program on finding factorial using recursion. I'm not very clear about the workflow in the second program which you have shown in the video. could you please , elaborate on how the program calculates the factorial? Thanks in advance. :)

[@sunilsuth]

plz explain the concept of (return 1;)

[@sunnygamedev]

keep going sir

[@SmartProgramming]

thanks brother

[@soumyabratasamanta9638]

Thank you Sir for such a nice explanation, but kindly make a video on Methods so that we can understand the concept well.

[@its_alveera_naaz]

Thankyou so much for explaining every little thing in java,☺ Baki sab jagah toh bina dhang se samjhaye padhane lagte h!!👌👌👌👌

[@SmartProgramming]

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@manishkesharwani7271]

Sir, I am beginner and I have never listen about recursion So, I could not understand so please help sir

[@gauravpise4628]

You are a great teacher

[@beatprofile.6314]

Wow ...you are really best teacher for technical line..cs student.

[@SmartProgramming]

thanks a lot dear, keep learning 😊

[@fahadmaqsood5636]

Thanks SIR

[@successtechmission4144]

Wow sir really I want to say you are very hard work 💖💖

[@SmartProgramming]

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

[@rajansingla5516]

You are amazing sir, Your videos gives me confidence and your teaching level is just awesome, keep it up !!God bless you !! :) And Please Check it sir, I have done like this !! public class Factorial { public static void main(String[] args) { // TODO Auto-generated method stub int num=8; int res=1; while(num!=0) { res=res*num; num--; } System.out.println(res); } }

[@SmartProgramming]

ya this logic is also correct, there are a lot of ways by which we can perform the task, good brothe 🙂🙂 Thanks a lot for your valuable feedback and support. If you are new, Please subscribe to get updates about new videos in the following link: kzbin.info

[@viveksharma1042]

thanks a lot sir, great

[@AstralHarp]

Only channel where I can Understand JAVA

[@SmartProgramming]

Keep it Up. Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Amazon Store: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@tanyamahajan7570]

Appreciable work sir..thnx for this video

[@SmartProgramming]

welcome

[@technicalsatish24]

Thank you so much sir ji

[@factright4841]

doing a great job .. Keep it up .Thanks

[@SmartProgramming]

thank you for your valuable feedback, keep learning

[@poojakshirsagar539]

Thank u so much sir...

[@shubhampatidar1814]

good institute for java

[@SmartProgramming]

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@gamegiggles3000]

Sir how u get output without using else part in return prgrm . my code = If(n

[@SmartProgramming]

class FactorialByRecursion2 { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter the no : "); int no=s.nextInt(); int fact; FactorialByRecursion2 ob=new FactorialByRecursion2(); fact=ob.calcFact(no); System.out.println("factorial of "+no+" is "+fact); } int calcFact(int no) { if(no>=1) { return (no*calcFact(no-1)); } return 1; } }

[@vijaysajjan1131]

superb explanation !!!

[@SmartProgramming]

Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram : instagram.com/smart_programming

[@Shamshad451]

amazing ,excellent, fantastic sir well done by hard works

[@SmartProgramming]

thank you for your feedback

[@bhupinderkaur5449]

keep it up

[@randomvlogs1047]

KEEP IT UP

[@SmartProgramming]

thank you

[@kashifshaikh3106]

Very nice explanation sir

[@dineshpatil5553]

can you please explain tower of hanoi example in java

[@SmartProgramming]

Tower of Hanoi is a mathematical puzzle where we have three rods and n disks. The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules: 1) Only one disk can be moved at a time. 2) Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack i.e. a disk can only be moved if it is the uppermost disk on a stack. 3) No disk may be placed on top of a smaller disk. Below is the code of hanoi program : class TowerHanoi { static void towerOfHanoi(int n, char from_rod, char to_rod, char aux_rod) { if (n == 1) { System.out.println("Move disk 1 from rod " + from_rod + " to rod " + to_rod); return; } towerOfHanoi(n-1, from_rod, aux_rod, to_rod); System.out.println("Move disk " + n + " from rod " + from_rod + " to rod " + to_rod); towerOfHanoi(n-1, aux_rod, to_rod, from_rod); } public static void main(String args[]) { int n = 4; towerOfHanoi(n, 'A', 'C', 'B'); } }

[@anmolsandhu3735]

###Superb👌👌👌

[@SmartProgramming]

thank you, keep learning 🙂🙂

[@tilakrajchoubey5534]

nice one

[@nehamall1074]

Great video sir

[@SmartProgramming]

thank you

[@ruchitatangadkar2533]

Tnq

[@gamegiggles3000]

Sir iam not getting output of last program using return ..plz rply me sir

[@SmartProgramming]

class FactorialByRecursion2 { public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter the no : "); int no=s.nextInt(); int fact; FactorialByRecursion2 ob=new FactorialByRecursion2(); fact=ob.calcFact(no); System.out.println("factorial of "+no+" is "+fact); } int calcFact(int no) { if(no>=1) { return (no*calcFact(no-1)); } return 1; } }

[@ibraheemsheikh2023]

Try removing the " static int fact=1" under the class and then initializing the " fact " in the main method Like : int fact; fact= [object which you create].[methodname]();

[@sparshsharma1343]

Sir, Please make videos on collection framework. It will help a lot sir.

[@SmartProgramming]

Will Upload soon

[@sukanyasinha3583]

Good explanation sir please make a video on string and array interview programs

[@SmartProgramming]

Sure

[@SmartProgramming]

Sure

[@praveenbadasar9956]

You are awesome 🎉

[@ajaykumarpradhan2239]

sir u r fantastic

[@SmartProgramming]

Hello Ajay kumar pradhan Thanks for your valuable feedback and Keep Learning. Please subscribe to get updates about new videos in the following link: kzbin.info

[@shaikshagheer4328]

Nice explanation

[@SmartProgramming]

Hello shaik shagheer, Thanks a lot for your valuable feedback and support. If you are new, Please subscribe to get updates about new videos in the following link: kzbin.info Below are the links of all the tutorials in java : 1. Java Tutorials for Beginners : kzbin.info/www/bejne/gGK3gX6NfrV5l6c 2. Control Statements in Java (with programs and patterns) : kzbin.info/www/bejne/hYa9nJeBe8qogZI 3. Arrays in Java (With Algorithms) : kzbin.info/www/bejne/moPVm52lqcyhn6M

[@deepika23213]

How can we trace the program in net beans.. plz tell us about that.

[@abhimaddheshiya]

can it be done using for loop sir?

[@samankalyan3217]

nyc explanation

[@SmartProgramming]

thanks

[@anmolsandhu3735]

Amazing...

[@SmartProgramming]

thank you for your feedback, keep learning 🙂🙂

[@unidizzinfotech4266]

nice, keep it up

[@sonamyaduvanshi6128]

Nice sir

[@SmartProgramming]

Thanks and welcome. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Shop With Us: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@chetanm898]

Here why are using S.O.P in main method can we use it after if loop?

[@SmartProgramming]

ya you can print there also, it depends how you build logic, printing the result depends on you. thank you, keep learning If you are new, Please subscribe to get updates about new videos in the following link: kzbin.info Below are the links of all the tutorials in java : 1. Java Tutorials for Beginners : kzbin.info/www/bejne/gGK3gX6NfrV5l6c 2. Control Statements in Java (with programs and patterns) : kzbin.info/www/bejne/hYa9nJeBe8qogZI 3. Arrays in Java (With Algorithms) : kzbin.info/www/bejne/moPVm52lqcyhn6M

[@jijiDwuv]

Why dont u use "static" for сall method ?

[@SmartProgramming]

it was because i have not explained the concept of static keyword, most of the students knows how to call method using objects thats why i have used objects. Thank you, keep learning

[@VipinKumar-yk1qn]

nice sir

[@gamegiggles3000]

Sir iam getting an error : missing return statement } 1 error Plz...rply me sir

[@SmartProgramming]

import java.util.Scanner; class FactorialByRecursion { static int fact=1; public static void main(String args[]) { Scanner s=new Scanner(System.in); System.out.println("Enter the no : "); int no=s.nextInt(); FactorialByRecursion ob=new FactorialByRecursion(); ob.calcFact(no); System.out.println("factorial of "+no+" is "+fact); } void calcFact(int no) { if(no>=1) { fact=fact*no; calcFact(no-1); } } }

[@prateekgupta1320]

Can you explain sum series

[@SmartProgramming]

We will try to upload a tutorial on sum series soon stay tuned and keep learning and sharing Thanks a lot for your valuable feedback and support. Get updated to my new videos in the following link: kzbin.info Below are the links of all the tutorials in java : 1. Java Tutorials for Beginners : kzbin.info/www/bejne/gGK3gX6NfrV5l6c 2. Control Statements in Java (with programs and patterns) : kzbin.info/www/bejne/hYa9nJeBe8qogZI 3. Arrays in Java (With Algorithms) : kzbin.info/www/bejne/moPVm52lqcyhn6M 4. OOPs Concepts in Java : kzbin.info/www/bejne/bYjLn4ytpKeMaJY?

[@chetanm898]

Can we print the obtained factorial after if loop like s.o.pln("factorial="+fact);

[@SmartProgramming]

no because it will print again and again

[@viveksharma9842]

Nice

[@SmartProgramming]

thanks

[@alinaiqbal723]

sir this code is little bit difficult and hard to understand :(

[@SmartProgramming]

Keep On trying😊

[@a_utopian]

🙏🙏🙏

[@Itachibatman]

op man ! u very awesome

[@Pooja-kr6wl]

App direct laptop pr programs padhaya kro

[@kishorebabu1543]

Hi Deepak this is kishore your teaching and explanation very nice helpful but if your teaching in English it will be very helpful to everyone please try to understand and start teaching in English as well. Thank you

[@SmartProgramming]

I will try. Thank you for your feedback. Below are some of the links for more videos and information : Java Tutorials Serial Wise : kzbin.info/aero/PLlhM4lkb2sEhfuXL-2BDrJ67WkUdQ2v9b Important Java Books: www.amazon.in/shop/smartprogramming?listId=3OFWAB0091PSQ Website : www.smartprogramming.in Projects & Courses Website : courses.smartprogramming.in Download Our Android Application for Notes and Interview Questions : play.google.com/store/apps/details?id=com.smartprogramming Follow Us On : Amazon Store: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@himanshuchugh4257]

Hello sir Can't thank you enough for making these videos int fact(int n) { if (n < = 1) else return n*fact(n-1); } I have been having trouble in understanding factorial by this logic, I cant understand the flow of this program, I have no one to ask, can you please help with this. I don't know how this line=return n*fact(n-1); works

[@SmartProgramming]

Hello himanshu chugh, Thanks a lot for your valuable feedback and support, keep learning. recursion is calling itself from the method, but if we call method from itself method, it goes to infinity, thats why i put some kind of condition which will stop calling itself at some point or say condition. then in return statement, im calling itself and also decrementing the value i.e. n-1, so it again calles itself by decrementing and returns int value. Get updated to my new videos in the following link: kzbin.info Below are the links of all the tutorials in java : 1. Java Tutorials for Beginners : kzbin.info/www/bejne/gGK3gX6NfrV5l6c 2. Control Statements in Java (with programs and patterns) : kzbin.info/www/bejne/hYa9nJeBe8qogZI 3. Arrays in Java (With Algorithms) : kzbin.info/www/bejne/moPVm52lqcyhn6M 4. OOPs Concepts in Java : kzbin.info/www/bejne/bYjLn4ytpKeMaJY 5. Exception Handling in Java : kzbin.info/www/bejne/r16xnZaCmN2cgbs

[@deepika23213]

I don't get it. Sir

[@deepika23213]

Recursion smj ni Ara Raha h

[@kingkhan-jp9zv]

sir,i dont understand it...from Bangladesh

[@SmartProgramming]

From where you can't understand? Watch it again. Follow Us On : Amazon Store: www.amazon.in/shop/smartprogramming Facebook Page : facebook.com/smartprogramming.india Instagram Page : instagram.com/smart_programming

[@toonswithheart65]

Sir this method of programming feels difficult😖😖

[@SmartProgramming]

Keep trying.

[@Farhankhan-ru5ko]

100 comments

[@lokeshpatwal5823]

stop giving the advertisement of artificial intlligence and machine learning in your channel , artificial intelligence duniya or insaaniyat ke liye khatra hai , logon ke kaam aasaan nhi balki log aalsi hote jaa rahe hain inki wajhe se

[@abhichauhan6486]

nice sir

[@SmartProgramming]

thank you, keep learning