What are the key differences between Java Collections and C# Collections?

What are the key differences between Java Collections and C# Collections?

Java Collections and C# Collections both provide data structures for storing and manipulating groups of objects, but they differ in syntax, features, and performance.

Can you give examples of common collection types in both languages?

Sure! In Java, common collection types include ArrayList, HashMap, and HashSet. In C#, you have List<T>, Dictionary<TKey, TValue>, and HashSet<T>.

How do they handle concurrency?

Java provides synchronized collections and the java.util.concurrent package for concurrency. C# uses the Concurrent namespace, which includes thread-safe collections like ConcurrentDictionary.

Which one is better for performance?

Performance can vary based on the specific use case. Generally, C# collections are optimized for performance, but Java's collections have improved significantly with newer versions.