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Live DSA, LeetCode, Java & SQL — Real Interview Prep I'm a software engineer with ~2 years of experience who ignored ...

Java Interview Question Explained | String Immutability & Pass-by-Value In this video, we break down a classic Java interview ...

Why is HashMap faster than Hashtable? What is the difference between ArrayList and LinkedList? What is the difference between ...

Not sure when to use parallelStream and stream? In this video, I explain the difference between parallelStream and stream using ...

In this video, I'm sharing my Cognizant Java interview experience for a 3–5 years role, which I gave in December 2025. This video ...

The interview that made me quit C++ & Java. I wrote 30 classes in 40 minutes... and I still failed. About 10 months back, when I ...

This video is based on my real LTI Mindtree technical interview experience. I have 2–3 years of Java backend experience, and I ...

This confuses even experienced devs: filter and map? In this video, I explain the difference between filter and map using clear ...

Preparing for Java and Spring Boot interviews with 3–5 years of experience can feel overwhelming because every topic looks ...

AI predictions are full of hype about replacing entire org charts overnight. But that's wishful thinking—not reality. Here's a better ...

In this video, we break down a real Oracle-style Java interview trick question that tests your understanding of StringBuffer, object ...

In this video, we discuss the Top 10 MOST IMPORTANT Wrapper Class Interview Questions in Java that are frequently asked in ...

A common interview trap: Daemon Thread and User Thread? In this video, I explain the difference between Daemon Thread and ...

A common interview trap: HashSet and TreeSet? In this video, I explain the difference between HashSet and TreeSet using clear ...

A common interview trap: Consumer and Supplier? In this video, I explain the difference between Consumer and Supplier using ...

Discover how AI can become a powerful co-pilot in your development workflow and your client server architecture. Burr Sutter ...

Not sure when to use Stack and Heap? In this video, I explain the difference between Stack and Heap using clear examples and ...

Interviewers love asking notify() and notifyAll()? In this video, I explain the difference between notify() and notifyAll() using clear ...

A common interview trap: Immutable Object and Mutable Object? In this video, I explain the difference between Immutable Object ...

Many developers confuse Predicate and Function? In this video, I explain the difference between Predicate and Function using ...

A common interview trap: map and flatMap? In this video, I explain the difference between map and flatMap using clear examples ...