691.1K
NAJava interview questions.
#javainterviewquestions #interview #question #Java #developer #programmer #telusko #navinreddy
@navinreddyofficial
#Java Interview Questions
شاهد 43K فيديو ريلز عن Java Interview Questions من أشخاص حول العالم.
شاهد بشكل مجهول دون تسجيل الدخول.
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30ريلز رائجة
(12)
520.0K
IAI Failed My Java Interview Because I Didn’t Know These Key Algorithms 😓 Make Sure You Do!
If you’re aiming for a senior Java role, these are must-know algorithms and patterns that could make or break your interview.
Here’s a quick breakdown 👇
🔹 Thread-safe Singleton
Use double-checked locking to ensure a single instance across threads efficiently.
🔹 Producer-Consumer Problem
Sync data flow with BlockingQueue to manage producer/consumer threads without manual handling.
🔹 ExecutorService for Thread Management
Optimize performance with thread pooling for better resource management.
🔹 Singleton Protection with EnumBlock reflection/cloning threats with Enum-based Singleton.
🔹 Abstract Factory vs. Factory Pattern
Know when to use these to create families of objects vs. single instances.
🔹 Strategy Pattern for Flexibility
Switch algorithms (like sorting) without changing client code—perfect for dynamic behavior.
🔹 Design Patterns in JDK
JDK has built-in patterns (like Singleton, Observer) that improve code quality.
🔹 Logging with Decorator Pattern
Extend loggers dynamically, adding timestamps, levels, and more without modifying core logic.
I’ll dive into each of these soon, with code examples and insights.
Follow for more tips to ace your interviews! 💡
#JavaProgramming #CodingInterview #JavaDeveloper #TechInterviews #Leetcode #CodingPrep #SeniorJavaDeveloper #SoftwareEngineer #JavaPatterns #ProgrammingTips #ComputerScience #EngineeringStudents #DSA #TechCareers #InterviewPrep #TechSkills #CodingLife #PlacementPrep #AlgorithmDesign #SystemDesign #DevelopersLife #SoftwareDevelopment #TechIndustry
[Leetcode, Computer Science, Engineering Students, DSA, Tech, Interview Prep, Coding, Placement]
@iamsaumyaawasthi
80.4K
COScenario Based Interview Questions Java ✅
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Follow @codesnippet.java ✅.
#java #programming #programmer #code #coding #springboot #coder #coders
@codesnippet.java
4.4K
MCJava Basic interview questions.. For freshers
@mcs_tutorials
273.2K
EN🧠 Java Output Questions That Trick Everyone!
1️⃣ s.concat(“World”) → Java
(String is immutable 😈)
✅ Correct Answer: B. Java
Reason:
String is immutable.
concat() creates a new string but does not change s because the result is not stored.
2️⃣ “Java” + 10 + 20 → Java1020 🤯
(Left-to-right evaluation)
✅ Correct Answer: B. Java1020
Reason:
String concatenation happens left to right.
“Java” + 10 → “Java10”
“Java10” + 20 → “Java1020”
3️⃣ Constructor call order → A → B 🔥
(Parent runs first, always!)
✅ Correct Answer: A. A B
Reason:
• Parent class constructor runs first
• Then child class constructor runs
Order:
👉 A → B
😳 Looks simple… but interviews love these traps
💬 Comment your score: 0/3 | 1/3 | 2/3 | 3/3
👥 Tag a friend who expects JavaWorld 😅
❤️ Save this for quick revision
➡️ Follow for daily Java MCQs & output questions
#JavaMCQs #JavaReels #OutputQuestions #StringInJava #ConstructorInJava #CodingReels #LearnJava #JavaInterview #PlacementPreparation 🚀
@engineeringmarathi
240.8K
MUQuick Java Interview Revision
Preparing for Interview, Join our 5 Live days Interview Focused Bootcamp to become Interview Ready.
#interviewprep #interviewbootcamp #javabootcamp #java #javaquestion
@mubeenkazi
111.7K
DHMaster these 35 Java Streams + Coding Interview questions and coding rounds won’t feel scary anymore.
Drop “PDF” in the comments and I’ll send the full list straight to your DMs.
Here’s a sneak peek:
1. Find duplicates in an array using Stream API
2. Sort employees in ascending & descending order using Java 8
3. Get the highest salary in HR using Streams
4. Calculate the average of even numbers
5. Implement sorting in Java 8
6. Count employees in each department
7. Filter employees by city and sort them alphabetically
8. Find name frequency in an employee list
9.
Want the complete 35?
Comment “PDF” 👇
#java #interviews #engineers #tech #coding
[coding, backend, engineering, software engineers, java interview, distributed systems]
@dhruvtechbytes
118.3K
HEIn this reel, I’ve explained a popular Java interview question on **Exception Handling** — *What happens to the `finally` block if there’s a `return` statement inside the `try` block?*
A simple yet tricky concept that often confuses many candidates. Watch till the end to understand how Java handles it.
#skillio #java #javainterviewquestions
@helloskillio
161.2K
COComment “oops” to get the perfect 150 interview questions.
Ace your next interview with thia!
#oops #java #dsa #datastructure #share
@codewithnishchal
77.8K
COJava Streams interview question #javastreams #hungrycoders #javaengineer #javaprogramming #javaconcepts #javaprogrammer #javaprogram #javaprogrammers #backendengineer #backenddev #codingproblems
@codingwithaman
29.8K
CODid you know that Java behaves differently when comparing wrapper classes like Integer? 🤯
In this quiz, we test a simple line of code:
Integer a = 128;
Integer b = 128;
System.out.println(a == b);
Most beginners expect true, but the correct output is: ❌
👇 Watch the video to learn why Java outputs false here!
This happens because of Integer caching mechanism in Java — only values between -128 to 127 are cached. Anything outside that range creates a new object, so == compares references, not values. 🧠💡
---
🎯 You'll Learn:
✔ Java wrapper class behavior
✔ Integer caching
✔ Difference between == and .equals()
✔ Common Java interview question
---
💬 Comment below:
Did you get it right? 😎
---
🔍 Keywords:
Java quiz, Integer caching, Java interview question, wrapper classes, Java comparison, Java coding challenge, Java beginner tips, Java programming trick
---
📌 Hashtags:
#Java #JavaQuiz #CodingQuiz #ProgrammerLife #JavaInterview #JavaTips #CodingChallenge #LearnJava #DeveloperCommunity #ProgrammingFacts #JavaDeveloper #CodeSmart #SoftwareEngineer #TechLearning #programminghumor
@codewithprashantt
1.7M
SHJava Interview Questions - 40
What is static?
.
.
.
java#corejava #softwaredeveloper#cse#javaforbeginners#java8#java8byshristitechacademy#javafullstack#javaprogramming#javacoding#java8tutorialforbeginners#javatutorialforbeginners#javaprogrammingtutorial#javainterviewquestionsforfreshers#javainterviewquestions#shristitechacademy
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@shristi_techacademy
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