Frequently Asked Java Program 08: Count Sum Of Digits in a Number

Topic : Count Sum Of Digits in a Number

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[marko]

I truly appreciate the detailed explanations you give. That approach provides quality insight into Java mechanism (what happens, when, and how), which is helpful to truly understand every aspect of the code.

[Me_out_of_office]

I solved this by pausing the video great . The playlist really helped me gain knowledge.

[karlmarxroxas]

Thanks for the nice explanation! I have an assignment like this but I am struggling about a day on how to answer it. Thanks again sir

[Move_Further]

Every tutorial is very professional ...Thanks

[Goldenknight-gf]

sir what if num is not given and the person has to input the number after the compile

[HocineFerradj]

Function Main
Declare Integer number, i, sum

Output "Please enter an Integer number: "
Input number
Assign sum = 0
While number > 0
Assign sum = sum + number%10
Assign number = number/10
End
Output "The sum is : " & sum
End

[ramjitarla]

Having small doubt, how 1%10 will give 1 as a remainder

[gauri]

You explain it the best way thanks a lot sir... u made understanding Java easy.... there must be same prof in clg

[SumanKumari-cnwo]

Hello sir, I watched all videos ...mind blowing explanation . Thank you so much sir.But i want to ask one in these program you are using while loop? Can I use for loop instead of while loop?

[mahendradhanait]

Thanks Pawan SIr for this nice explanation. I like your all videos and also purchase your Udemy course for Automation Testing.
One question regarding above programme.
If I use For loop then for 12345 it shows wrong answer. It shows me 14 but actual answer should be 15. what is the reason behind that, please guide me?
Thanks

[vijayalakshmigorrela]

Sir, without writing count++, how does the loop runs?? As in ur previous examples you wrote count++. Can you please answer my question

[johnnyjohn]

Congratulations! Your explications are well made and lessons very intrresting! Keep in touch!

[kvelez]

package javaapplication23;

import java.util.Scanner;

public class JavaApplication23 {

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);
StringBuilder sb = new StringBuilder();

System.out.println("String: ");
int num = sc.nextInt();

int numBackUp = num;//Before the alteration of Number.
int digitSum = 0;
int reverse = 0;

while (num != 0){
reverse = reverse*10 + num%10;
num = num / 10;
}

while (numBackUp != 0){
digitSum += numBackUp % 10;
numBackUp = numBackUp / 10;
}

int numDigits =
int reverseDigits =





}

}