Java 8 Stream Coding Challenge: Compress String by Character Frequency | Sort by Frequency!
In this Java tutorial, learn how to compress a string by counting the frequency of each character and then sorting the result by frequency in ascending order.
👨💻 Problem Example:
🔸 Input: "aabbaa"
🔸 Output: "b2a4"
(✔ 'b' appears 2 times, 'a' appears 4 times)
We’ll use HashMap, Java Streams, and Collectors to efficiently solve this problem — perfect for coding interviews and Data Structures prep!
💡 This is one of the top asked string manipulation problems in coding rounds!
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