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SAHow to MASTER Java for FREE #coding #java #compsci #fyp
@sajjaad.khader
#Java Coding Challenges 2026
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20Trending Reels
(12)
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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. 🧠💡
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🎯 You'll Learn:
✔ Java wrapper class behavior
✔ Integer caching
✔ Difference between == and .equals()
✔ Common Java interview question
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💬 Comment below:
Did you get it right? 😎
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🔍 Keywords:
Java quiz, Integer caching, Java interview question, wrapper classes, Java comparison, Java coding challenge, Java beginner tips, Java programming trick
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📌 Hashtags:
#Java #JavaQuiz #CodingQuiz #ProgrammerLife #JavaInterview #JavaTips #CodingChallenge #LearnJava #DeveloperCommunity #ProgrammingFacts #JavaDeveloper #CodeSmart #SoftwareEngineer #TechLearning #programminghumor
@codewithprashantt
4.9K
PYCan you solve this Python challenge?
Test your Python skills and logical thinking with this short quiz.
Leave your answer in the comments and check if you got it right.
Subscribe for regular Python coding questions and improve your problem-solving abilities.
These challenges are great for daily practice, coding interviews, and learning by doing.
Run the quiz in your computer!
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@python.challenges
2.0M
CUJava developer❤️🤯
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@curious_freakss
220.4K
GEJava Projects to get you hired ✅
Source Code :
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SIJava developer quickly❤️🔥
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1.5M
EN🧠 Java Increment MCQs 😈 | Most People Fail This
1️⃣ a++ + ++a → 12 ✅
2️⃣ ++a + ++a → 13 ✅
3️⃣ a++ + a++ → 11 ✅
😳 Looks easy… logic says otherwise
💬 Comment your score: 0/3 | 1/3 | 2/3 | 3/3
1️⃣
int a = 5;
int b = a++ + ++a;
👉 a++ → uses 5, then a = 6
👉 ++a → increments first → 7
✅ b = 5 + 7 = 12 → Answer: C
⸻
2️⃣
int a = 5;
int b = ++a + ++a;
👉 First ++a → 6
👉 Second ++a → 7
✅ b = 6 + 7 = 13 → Answer: C
⸻
3️⃣
int a = 5;
int b = a++ + a++;
👉 First a++ → 5 (a = 6)
👉 Second a++ → 6 (a = 7)
✅ b = 5 + 6 = 11 → Answer: B
👥 Tag a friend who guesses instead of calculating 😅
❤️ Save this for interview revision
➡️ Follow for daily Java MCQs & tricky logic questions
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@engineeringmarathi
1.3M
DUWhen you open a project after a few years #coding #code #programming #javascript #webdevelopment #html #python #dart
@dumitru_developer
490.9K
CO4 Websites To Gamify Learning How To Code👾
🎮Codédex - this is the OG website to learn how to code while playing games! There are CS courses based on C++ and Java where you can work through mini games to learn OOP!
🎲Codingame - so many languages to learn and so many games to play! This one has everything.
🏙️Elevator Saga - amazing game for learning big O and how to write efficient and fast code! You have to transport a number of people up the elevator in a certain amount of time!
🏝️SQL island - after you survived a plane crash you’re stuck on SQL island! You can make progress by learning how to code and eventually escape the island!
Comment if you’re a gamer and want to learn how to code!
📌SAVE this for later!
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@compskyy
866.1K
DUJava's golden rule: Old concepts (general methods) always take precedence. Remember that, and you'll get the right answer. #JavaProgramming #CodingTips #TechFacts #SoftwareDev #LearnToCode #CodingLife
@durgajobsinfo
491.2K
CHFree projects with source code
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85.9K
SHI always thought coding was kinda boring—until I found this site that actually makes it fun. If you’ve ever wanted to learn but felt overwhelmed, this is a game-changer.
Yeah, tech can seem intimidating at first, but if you like a good challenge, you’ll never be bored. That first time you get your code to work? It’s a feeling you won’t forget.
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@shigcodes
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