Java 8 Features for Developers

Engineering With Java newsletter now covers 58 real world use case based interview questions 🥳 If you like to practice these questions , checkout : https://lnkd.in/gW5kQ6Xf #java #spring #springboot #interview

I built the Java interview resource I wish I had. Interview prep can be overwhelming. Topics are scattered, and it's hard to know where to focus. This guide brings everything together in one place. Java SE 8 through SE 24. → Modern Java : Pattern Matching, Records, Virtual Threads, Stream Gatherers → Core Fundamentals : Strings, Wrapper Classes, Text Blocks, var → OOP & Design Patterns : Singleton, Factory, Strategy, DI → JVM Internals : JIT, Garbage Collection, Memory Management → Collections Framework : including Java 21's SequencedCollection Every concept is explained with code examples and comparison tables. Share it with someone who could benefit from it. #Java #JavaDeveloper #InterviewPrep #SoftwareEngineering #TechCareers

🚀 Java Interview Preparation? You Might Be Doing It Wrong Most developers prepare like this 👇 ❌ Focus only on Java 8 ❌ Ignore modern features (Java 17, 21) ❌ Memorize syntax instead of understanding concepts And then wonder why interviews don’t go well. So I here is something structured: 📘 Java Interview Mastery Guide (Java 8 → 17 → 21) A single place to revise what actually matters 👇 ⚡ What you’ll get: ✅ Java 8 → Streams, Lambda, Optional (with examples) ✅ Java 17 → Records, Sealed Classes, Pattern Matching ✅ Java 21 → Virtual Threads & modern concurrency ✅ Frequently asked interview questions ⭐ ✅ Common mistakes candidates make ✅ Quick revision cheat sheet 💡 The real difference in interviews: ❌ Knowing concepts ✅ Explaining them with clarity + real use 📌 If you're preparing for backend / Java roles: This will help you connect concepts, not just remember them Comment “Java Guide” or anything so it can helps more people discover this post  🚀 🔖 Save this for your next interview prep #java #backend #interviewprep #softwareengineering #java17 #java21 #developers #careergrowth

🚀 Java Concept Series JDK vs JRE vs JVM 🔥 Understanding the core of Java: JDK = Develop JRE = Run JVM = Execute Simple concepts, but very important for interviews. 👉 Next: Data Types in Java #Java #Programming #CodingJourney #PlacementPreparation #LearnInPublic

🚀 Java Backend Interview Series – Day 4 Collections are asked in almost every interview 👇 📦 Collections Framework: 1️⃣ Internal working of ArrayList 2️⃣ Internal working of HashMap 3️⃣ HashMap vs Hashtable 4️⃣ ArrayList vs LinkedList 5️⃣ Vector vs ArrayList 6️⃣ What is immutable class? 7️⃣ Comparator vs Comparable 8️⃣ What causes ConcurrentModificationException? 9️⃣ What is CopyOnWriteArrayList? 🔟 When to use ConcurrentHashMap? 💡 If you don’t know internals → you’ll struggle in interviews 📌 Save this 👇 Comment “NEXT” for Day 5 #java #javainterviews #interviewpreparation #backend

🚀 ConcurrentHashMap Internals Explained (Java 8+) Most developers use ConcurrentHashMap… But very few actually understand how it works internally. 👉 That’s where the real interview questions come from. #ConcurrentHashMap #Java #Interview

Java interview classic: static vs non-static Key idea: - Static methods can access only static members directly - Instance members need an object Rule to remember: - Static = class level - Non-static = object level #Java #Interview #Static #Compiler #Software

Preparing for Java Interviews? I just went through a detailed Java Interview Q&A guide covering core concepts + real examples ✅OOP Concepts ✅Collections Framework ✅Exception Handling ✅Multithreading Basics ✅JVM, JRE, JDK differences ✅Real-world Coding Questions ✅Practical Java Programs Whether you're starting your career or switching to Java-based roles - this Q&A PDF is a great revision companion. Follow Harshit Mundra for more helpful content. #Java #InterviewPreparation #Programming #OOP #Collections #Coding

Preparing for Java Interviews? I just went through a detailed Java Interview Q&A guide covering core concepts + real examples ✅ OOP Concepts ✅ Collections Framework ✅ Exception Handling ✅ Multithreading Basics ✅ JVM, JRE, JDK differences ✅ Real-world Coding Questions ✅ Practical Java Programs Whether you’re starting your career or switching to Java-based roles — this Q&A PDF is a great revision companion. <~#𝑷𝒍𝒂𝒚𝒘𝒓𝒊𝒈𝒉𝒕 #𝑻𝒆𝒔𝒕𝒊𝒏𝒈~> 𝑷𝒍𝒂𝒚𝒘𝒓𝒊𝒈𝒉𝒕 𝒘𝒊𝒕𝒉 𝑱𝒂𝒗𝒂𝑺𝒄𝒓𝒊𝒑𝒕& 𝑻𝒚𝒑𝒆𝑺𝒄𝒓𝒊𝒑𝒕 ( 𝑨𝑰 𝒊𝒏 𝑻𝒆𝒔𝒕𝒊𝒏𝒈, 𝑮𝒆𝒏𝑨𝑰, 𝑷𝒓𝒐𝒎𝒑𝒕 𝑬𝒏𝒈𝒊𝒏𝒆𝒆𝒓𝒊𝒏𝒈)—𝑻𝒓𝒂𝒊𝒏𝒊𝒏𝒈 𝑺𝒕𝒂𝒓𝒕𝒔 𝒇𝒓𝒐𝒎 20𝒕𝒉 𝑨𝒑𝒓𝒊𝒍 𝑹𝒆𝒈𝒊𝒔𝒕𝒆𝒓 𝒏𝒐𝒘 𝒕𝒐 𝒂𝒕𝒕𝒆𝒏𝒅 𝑭𝒓𝒆𝒆 𝑫𝒆𝒎𝒐: https://lnkd.in/dR3gr3-4 𝑶𝑹 𝑱𝒐𝒊𝒏 𝒕𝒉𝒆 𝑾𝒉𝒂𝒕𝒔𝑨𝒑𝒑 𝒈𝒓𝒐𝒖𝒑 𝒇𝒐𝒓 𝒕𝒉𝒆 𝒍𝒂𝒕𝒆𝒔𝒕 𝑼𝒑𝒅𝒂𝒕𝒆: https://lnkd.in/ddHf2hdv : Follow Pavan Gaikwad for more helpful content. #Java #InterviewPreparation #Programming #OOP #Collections #Coding

🚨 Interview question I got recently that made paused for few seconds. Interviewer : “Java doesn’t support multiple inheritance, right?” I said yes. Interviewer: Explain multiple inheritance Me: Multiple inheritance occurs when a class extends more than one class. Java forbids this because a single child class cannot have two or more parent classes, as it can lead to the diamond problem. Then came the follow up : Interviewer : “Every Java class extends Object by default, So if A extends B… isn’t A inheriting from Both B and Object?” class A extends B {} So technically: A → B → Object Got me thinking for like 20 seconds before I remembered what was happening. How many seconds did it take you to figure it out? Now imagine it’s your interview Answer the interviewer too 😊 #Java #Backend #OOP #DSA #Springboot #Springframework