Lisa's notes: musings on daily life, work, study, personal growth, and casual reflections.
This tutorial walks through Python list basics, showing how to define one‑, two‑ and three‑dimensional lists, access elements via indexing, and use list comprehensions to generate sequences, filter odd numbers, and compute squares, with complete code examples and their outputs.
This tutorial demonstrates how to sort lists with sort() and sorted(), reverse them, retrieve length, maximum, minimum, and element indices, and includes concrete code examples and their output for each operation.
The article examines how Huawei, facing high R&D waste, long cycles and declining margins, looked to IBM’s turnaround under Gerstner and its Integrated Product Development (IPD) framework as a blueprint to build a systematic, efficient R&D system for long‑term products.
This learning note walks through a complete Java Car class example, explaining its instance fields (brand, color, speed, id), a static count field, a parameterized constructor that auto‑increments the count, and accessor methods that illustrate core object‑oriented concepts.
The article traces the historical roots of humanoid robots, outlines safety protocols like Asimov's Three Laws, categorises robot generations and control types, dissects the upstream‑downstream supply chain with component cost breakdowns, examines manufacturing processes, showcases key application scenarios, and analyses emerging business models and challenges in the fast‑growing robotics market.
This tutorial demonstrates how to delete elements from Python lists by using the pop() method with optional index, the remove() method for specific values, and the clear() method to empty the list, illustrated with concrete examples and output results.
This tutorial explains how the Java this keyword references the current object, showing its use for accessing shadowed member variables and invoking other constructors through clear code examples such as Point and Rectangle classes.
This tutorial walks through Java member methods, covering return statement syntax, proper use of getters and setters, the static modifier for class members, and the final keyword for classes, variables, and methods, with concrete code examples and explanations.
The article examines two frequent project‑management problems—ever‑changing requirements and internal team friction—illustrates each with real‑world cases, and shows how strict change‑control procedures and daily stand‑ups can cut informal requests by 50% and double iteration speed.
This tutorial walks through the fundamentals of Java objects, covering declaration, instantiation, referencing, practical code examples—including a HelloTest class and a Point/Rectangle demo—and explains Java's automatic garbage collection and manual cleanup techniques.
