Java-Module-2-Inmakes-Challenges This coding challenge focuses on string manipulation in Java. Tasks include extracting digits from an alphanumeric string, converting strings to uppercase and ...

Question 4: Find Duplicate Characters Problem: Find and count duplicate characters in a string. Code: The program reads a string and uses a HashMap to store the counts of each character. It then ...

Hold the value of the String length in a variable for future use Java String length method () The Java String class contains a length () method that returns the total number of characters a given ...