Java Program to Count Character Frequency in a String – Easy Explanation!

Learn how to count the frequency of each character in a string using Java! This tutorial demonstrates how to utilize `HashMap` to store and display character counts from any given input. It's a handy example for beginners wanting to understand loops, HashMaps, and string manipulation in Java. Perfect for anyone looking to improve their Java coding skills!

Explanation of the Code
1. **User Input**: The program takes a string input from the user.
2. **Character Frequency Counting**:
- A `HashMap` is used to store each character as a key and its frequency as the value.
- Each character is processed, and the map either updates the existing count or adds a new entry.
3. **Displaying Results**: The map entries are then printed, showing each character and its frequency in the string.

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