Lisa's notes: musings on daily life, work, study, personal growth, and casual reflections.
This tutorial walks through Java's selection structures—including if, if‑else, if‑else‑if, nested if, and switch—detailing their syntax, execution flow, example code, output results, and key differences, helping beginners write correct and portable conditional logic.
This tutorial explains Python's string indexing and slicing, covering zero‑based indices, the start:end:step syntax, negative indices, step rules, and multiple concrete examples that demonstrate how to extract and manipulate substrings.
This tutorial walks through Java 2D arrays, covering their definition, variable declaration syntax, creation with the new keyword, direct initialization, element access, and modification, illustrated with code examples and visual tables.
This note explains how to declare Python strings with various quotes, embed quotes inside strings, use escape sequences, and apply raw strings and f‑strings, providing clear code snippets and their outputs for each case.
This tutorial walks through the fundamentals of Java one-dimensional arrays, covering declaration syntax, memory allocation with new, default values, direct initialization, element access, out‑of‑bounds handling, and element modification with concrete code examples and expected outputs.
The article explains Huawei's IPD (Integrated Product Development) workflow from a project perspective—covering concept, planning, development, and release stages—and provides a detailed glossary of IPD‑related terminology used throughout the product lifecycle.
This article explains step‑by‑step how to use both while‑loops and for‑loops in Python to generate a formatted 9×9 multiplication table, detailing the loop logic, code syntax, and the exact output produced for each row.
The article traces the origins of humanoid robots, explains safety principles like Asimov's Three Laws, outlines generational classifications, breaks down the upstream‑midstream‑downstream industry chain with component cost shares and key vendors, and discusses business models, challenges, and AI‑driven opportunities that make entry difficult for ordinary people.
This tutorial explains how break and continue control loop execution in Python, provides concrete while‑loop examples with their outputs, and demonstrates both for‑ and while‑based nested loops for printing multi‑row patterns, illustrating syntax and behavior step by step.
This note explains why Java introduces arrays, defines arrays as collections of same‑type variables, demonstrates the limitation of using individual variables for many items, and outlines six key characteristics of Java arrays, including fixed length, zero‑based indexing, and default values.
