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Anish
Anish@anish2good·
I put together a free, hands‑on Java tutorial series for beginners through intermediate devs. It includes an online runner so you can write and run Java in the browser—no local setup required. All lessons: 8gwifi.org/tutorials/java/ Dozens of lessons across structured modules Basics: syntax, variables, primitive types, operators Control Flow: if/else, switch, for/while, loop control - Strings & Arrays: string ops, arrays, multidimensional arrays - OOP Core: classes, methods, constructors, access modifiers, static/final - Inheritance & Polymorphism: extends/super, overriding, abstract classes, instanceof - Interfaces: basics and usage patterns - Collections & Generics: ArrayList, LinkedList, HashMap, HashSet, TreeSet/Map, iterators, generics - Exceptions: try/catch, multiple catch, finally, throw, custom exceptions, best practices - I/O: Scanner, reading/writing files, serialization, NIO overview - Functional Java: lambdas, streams, regex - Concurrency: threads, synchronization, executors - Advanced: enums, annotations, reflection - Professional: JUnit testing, logging, build tools (Maven/Gradle), packages, patterns, debugging - Online Runner: run/reset inline, stdin tab, copy output, timing stats, dark mode, mobile‑friendly
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Nawa Man
Nawa Man@nawaman·
@java Big fane of IJava. Use it all the time. Love to see it is promoted more.
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Boboor
Boboor@notboboor·
@java wtf is IO.println?????
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