🚀 Java Streams – Separate Even & Odd Numbers in One Line! Ever wondered how to split a list into even and odd numbers using Java Streams?

📰 Dev.to · Praven Kumar

Learn to separate even and odd numbers in a list using Java Streams in one line of code

intermediate Published 5 Apr 2026

Action Steps

Import the Java Streams library
Use the partitioningBy method to split a list into two groups based on a predicate
Apply the predicate to check if a number is even or odd
Collect the results into two separate lists
Test the code with a sample list of numbers

Who Needs to Know This

Software engineers and Java developers can benefit from this technique to simplify their code and improve readability

Key Insight

💡 Use the partitioningBy method to split a list into two groups based on a predicate

Key Takeaways

Learn to separate even and odd numbers in a list using Java Streams in one line of code

🤔 ✅ Approach 1: Using partitioningBy 🧠 Key Point: .Splits into only 2 groups (true / false) .Best...