258.4K
SAHow to MASTER Java for FREE #coding #java #compsci #fyp
@sajjaad.khader
#Java Coding Best Practices
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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
44.3K
RELearn Java..!!
@rengatechnologies
#learnjava #java #javascriptchallenge #javasyllabus #coding #programming #javaprogramming #javacoding #sivakasi #kovilpatti
@rengatechnologies
2.1M
IMSave this so you don’t forget 💡
If you want to learn Java, you have a few options:
1. If you prefer books, then I’d recommend ‘Head First Java’. You can find the link for this in my bio 🔥 It is a really good book that covers essential Java programming concepts including classes, objects, threads, collections, and other language features such as generics, enums, variable arguments and auto-boxing. They also have an advanced section on Swing, networking and Java IO. It makes it a complete package for Java beginners. This should be your first Java book if you’re starting from scratch.
2. If you have more time and want to learn from someone who’s fun, interactive and gives sweets to his students when they get the answers right; then I highly recommend ‘Programming Methodology’ by Stanford on YouTube. It is taught by Professor Mehran Sahami and you don’t have to watch all the lectures. He explains things so well and although the lectures are old, you will learn so much in a short space of time. You can use this alongside the ‘Head First Java’ book above.
3. If you want something more challenging with a focus on getting a programming job, check out ‘Object Oriented Java Programming: Data Structures and Beyond Specialization’ on Coursera. You can enrol for free (without the certificate). In there you’ll learn object oriented programming in Java and quickly move onto data structures and algorithms as well as mastering the software engineering interview - all in Java. This is highly useful if you need to apply for a Java engineering job at a bigger tech company soon.
Don’t forget to follow for more!
#coding #softwareengineer #techcareers #pvthon #code #learntocode #tech #devlife #imdadcodes
@imdadcodes
14.2K
PI3 programming languages worth learning in 2026 (and the best free course for each) 👇
Python, JavaScript, and Java. If I had to start from zero today, these are the only 3 I’d focus on.
Here’s why each one made the list:
🐍 Python
One of the easiest languages to pick up, and it opens doors to backend development, Machine Learning, and Data Science. Start with CS50P. Free. Beginner friendly. Genuinely good.
🌐 JavaScript
If you want to build websites, apps, or real products people can actually use, you need JavaScript. It is still one of the most practical skills you can have as a developer. Start with The Odin Project.
☕ Java
A lot of serious companies depend on Java for backend systems and enterprise software. If you care about long-term job demand, Java is a very smart bet. Start with the Helsinki Java MOOC.
One rule though: do not try to learn all 3 at once.
Pick the one that matches what you actually want to build, and go deep on that first.
Comment “LANGUAGE” and I’ll send you the full roadmap. 🗺️
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#programming #learntocode #python #javascript #java
@pirknn
20.1K
VOComment “JAVA” for the links.
You’ll Never Struggle With Java Again ☕️
📌 Master Java and backend development with these free resources:
1️⃣ Learn Java in 15 Minutes (Seriously) – ForrestKnight
2️⃣ Java OOP in 10 Minutes (Java Object-Oriented Programming) – Alex Lee
3️⃣ Ultimate Java Backend Project: Spring Boot Tutorial – SWErickCodes
Stop feeling lost with Java syntax, OOP concepts, or backend projects. These tutorials teach you Java fundamentals, object-oriented programming, and hands-on Spring Boot development — all step by step.
Whether you’re prepping for coding interviews, backend roles, or building real-world projects, this is the fastest way to go from beginner → confident Java developer.
Save this post, share it, and start mastering Java programming and backend development today. ⚡️
@volkan.js
85.4K
CHHere’s how I got started with Java xD
Step 1: got a job
Step 2: went through company provided courses
Step 3: understood my server and codebase
So the way I have learnt is very unstructured and might not be the best way to learn anything new but it’s a style I enjoy :)
If you prefer a roadmap styled approach then you an consider commenting “link” to get a GitHub repo with a list of topics and resources 🙌🏻
(I have not used it myself so lmk if you find it useful :))
#java #javadeveloper #buildinpublic #softwareengineer #notes
@chubbytoday
27.2K
COReverse Array ✅
@codesnippet.java
5.9K
COComment “Link” to Get WhatsApp Channel Link🔥
Follow @coders_section for more!🙂
java basics for beginners, java tutorial full course, java cheatsheet pdf, java oop concepts, java number class methods, java character class methods, java advanced topics, learn java fast, java roadmap 2025, java interview prep
🔥 Hashtags:
#java #javabasics #javaprogramming #objectorientedprogramming #javacoding #javadeveloper #javaforbeginners #oop #learnjava #100daysofcode #javaadvanced #backenddeveloper #softwaredeveloper #javaoop #htmlcssjsjava #developercommunity #codingresources #javainterview #buildinpublic
@codehub_tech
2.4M
MORelaxing Python & Pygame Creations #coding #programming
@mohcinale
522.8K
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
127.8K
CO“Ready to master Java? 🚀 Dive into these 3 YouTube playlists that will take you from beginner to pro! Perfect for students, developers, and coding enthusiasts. 💻✨
🔗 Links in comments or DM me. Start your coding journey today!
Follow @codewithupasana for more helpful content !!
[ Java, Learn Java, Java Programming, Coding, Programming, Software Development, YouTube Playlists, Coding Journey, Java Tutorials, Beginner to Pro, Learn to Code, Programming Tips, Developer Life, Tech Education, Code Newbie ]
#Java #LearnJava #JavaProgramming #Coding #Programming #DeveloperLife #CodeNewbie #TechEducation #JavaTutorial #YouTubeLearning #ProgrammingTips #CodeJourney #LearnToCode #SoftwareDevelopment #telusko #derekbanas #thenewboston
@codewithupasana
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