Tuesday, November 6, 2012

Java Exercise #45: Counting Digits in a String

The problem is to write a method that counts the number of digits in a String.

This implementation uses Character.isDigit() method to verify whether a character is a digit.

Exercise: Write a program that prompts the user to enter a String and then prints out the number of digits in the String.


Enter string: d#1@bcd23f1gb
Number of digits is: 4

Download Code: Count Digits

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