Count number of digits in an integer in Java | Java programming for beginners

Java program to count the number of digits in an integer.
Java practice program for beginners.
Java practice program in Strings.
Java practice program in loops.

Example 1:
Input:
n = 100
Output:
3

Example 2:
Input:
n = 1234
Output:
4

Java practice program for ICSE Class 10 Computer Applications students.
Java practice program for ISC Computer Science Class & Class 12 students.
Java tutorial in programming for ISC Computer Science Class & Class 12 students.
Java practice program for AP Computer Science students.

Two approaches used to solve the problem:
1. String method - to convert the int to String and then find the length of the String
2. while loop - count number of digits by removing units digit one by one iteratively

0:00 Intro
0:58 Count digits using the while loop method
4:30 Sample dry run of the Java code to count digits using the while loop method
6:36 Java Code implementation using String method
7:04 Java Code implementation using while loop method

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