Topic
Classes
Learn Classes as a connected topic across chapters, concepts, simulations, and interview reasoning.
10 Concepts12 Articles4h 22m
Overview
Learn Classes as a connected topic across chapters, concepts, simulations, and interview reasoning.
How this topic helps
Java
Machine Learning
Metrics
Model Evaluation
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Articles
12 matched articles
Article 1Python OOP: Classes, Dataclasses, and Dunder Methods📖 Why Every Java Developer Writes Un-Pythonic Classes on Day One
Imagine a developer — let's call him Daniel — who has written Java for six years. He sits down to write his first Python class and pro22 minArticle 2Java 14 to 17: Records, Sealed Classes, Text Blocks, and Pattern MatchingTLDR: Java 14–17 ran a deliberate four-release preview-to-stable conveyor belt. Records replaced 50-line POJOs with one line. Text blocks ended escape-sequence chaos in multi-line strings. Sealed clas25 minArticle 3Java 8 to 11: Lambdas, Streams, Modules, and the End of BoilerplateTLDR: Java 8 introduced the most impactful set of language features in Java's history — lambdas eliminated anonymous inner classes, streams replaced imperative loops, and Optional made null handling e16 min
Article 4Java 8 to Java 25: How Java Evolved from Boilerplate to a Modern LanguageTLDR: Java went from the most verbose mainstream language to one of the most expressive. Lambdas killed anonymous inner classes. Records killed POJOs. Virtual threads killed thread pools for I/O work.25 minArticle 5Database Anomalies: How SQL and NoSQL Handle Dirty Reads, Phantom Reads, and Write SkewTLDR: Database anomalies are the predictable side-effects of concurrent transactions — dirty reads, phantom reads, write skew, and lost updates. SQL databases use MVCC and isolation levels to prevent 31 minArticle 6Big O Notation Explained: Time Complexity, Space Complexity, and Why They Matter in InterviewsTLDR: Big O notation describes how an algorithm's resource usage grows as input size grows — not how fast it runs on your laptop. Learn to identify the 7 complexity classes (O(1) through O(n!)), deriv34 minPage 1 of 2