Lisa's notes: musings on daily life, work, study, personal growth, and casual reflections.
The article explains Java annotations, covering their purpose, usage in compilation, documentation and runtime, demonstrates built‑in annotations such as @Deprecated, @Override and @SuppressWarnings, shows how to define custom annotations, set retention policies, and create annotation processors with concrete code examples.
This tutorial explains why lists can be limiting for storing multiple data items, introduces dictionary syntax, and walks through creating, accessing, modifying, adding, and deleting dictionary entries with concrete code examples and their output.
IPD is a market‑driven, cross‑functional product development framework that treats development as an investment decision, emphasizing portfolio analysis, asynchronous parallel engineering, reusable building blocks, and structured yet flexible processes, while IPD‑CMM extends this by embedding a V‑model software maturity approach with early‑stage test planning.
The article explains Integrated Product Development (IPD) as a market‑driven, cross‑functional management system that combines demand, market, and technology management with a structured four‑layer process, illustrated by IBM and Huawei case studies, to deliver high‑quality, low‑cost products efficiently.
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.
