Java program to count digits in an Integer

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[virtuosek]

I don't know if this is allowed, but you can do it with Strings too:
int number = 120;
String numberStr = String.valueOf(number);
System.out.println("The number has " + numberStr.length() + " digits");

[surbhijain]

Yr recurrsive baale thoda acha s samjha diya karo!!appna jaldi jaldi m nikal diya

[AwaraGhumakkad]

One more idea - Convert the digit in String, and check the length

[ajitkumaryadav]

We can find no of digits of a number in O(1) time and yr approach will take O(no of digits) .

[shubhamkumar-gwvb]

Ecellent sir.This really helped me a lot.Many many thanks

[robertmasters]

does anyone know the algorithm to show the digits of this number including the zeros 0001. should show 4 digits.

[buthynah]

In the first approach, why you divide it by 10?

[megameganath]

heloo bro nice explantion but i have some more vedeos about progamming like strings and arrys and palandrom with diffrent examples

[abhishekmane]

int num = 1234;
int Len= (int) Math.floor( Math.log10( num) + 1 );
System.out.println("Count of digits = "+ Len);

[maheshgoud]

Anna please made some programs important for ibm in java