Java Coding Problems

Chapter 1: Strings, Numbers, and Math

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Problem Statement : Counting Duplicate Characters

Write a program that counts duplicate characters from a given String.

Sample Input 1

"aabcc"

Sample Output 1

{a=2, b=1, c=2}

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• Source Code
• Main Class
• Test Class

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Question taken from the book "Java Coding Problems" by Anghel Leonard.
Formatted and uploaded by dbc2201

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Suggested Reading:

1. HashMap (Java SE 18 & JDK 18)
2. Managing the Content of a Map (dev.java)