Top 50+ Java Streams Coding Questions - Find the first non-repeated character in a string

Описание: 🔍 Find the First Non-Repeated Character in a String Using Java Streams | Java 8 Stream API Tutorial 🔍

In this video, you'll learn how to find the first non-repeated character from a given string using the Java 8 Stream API. This is a classic problem in programming interviews that tests your understanding of data frequency counting, order preservation, and efficient stream processing.

Using Java Streams, we'll solve this problem in a clean, functional way—without writing verbose loops or manual index tracking—while maintaining the original character order.

🧠 What You’ll Learn:
✅ How to convert a string into a character stream
✅ How to count occurrences of each character using Collectors.groupingBy()
✅ How to preserve insertion order using LinkedHashMap
✅ How to identify and return the first character with a count of 1
✅ How to handle edge cases (e.g., all characters repeated)

💡 Why This Is Important for Java Developers:
🔹 A frequent problem in coding interviews and assessments
🔹 Enhances your ability to combine collectors with filtering logic
🔹 Helps you apply functional programming techniques to real-world text problems
🔹 Strengthens your understanding of stream pipelines, grouping, and ordering

👨‍💻 Who Should Watch This Video:
✔️ Java developers preparing for technical interviews
✔️ Students learning Java 8+ Stream API
✔️ Professionals working with text parsing or user input analysis
✔️ Anyone looking to improve their problem-solving skills in functional Java

📺 Watch This If You Want To:
🔹 Learn how to solve character frequency problems functionally
🔹 Write readable and maintainable Java code using streams
🔹 Practice advanced collector usage (groupingBy, filter, findFirst)
🔹 Handle one of the most commonly asked interview questions in Java

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