Lisa's notes: musings on daily life, work, study, personal growth, and casual reflections.
This note explains Python's while loop, detailing its three-part structure, special considerations such as the one‑time initial condition, lack of ++/-- operators and do‑while syntax, and provides a concrete example that prints "hello world" ten times.
This note explains Java identifiers—allowed characters, first‑character rules, valid and invalid examples—lists all language keywords that cannot be reused as names, and outlines practical naming conventions for classes, methods, constants, and packages to improve code readability.
The article explains that the pass keyword in Python serves only as a syntactic placeholder to keep code blocks valid, illustrating its use with a simple age‑checking example where the pass statement does nothing but allow the program to run without errors.
This tutorial explains Python's nested if syntax, shows how single, double, and multi‑branch conditions can be combined, and walks through a practical ticket‑checking example that demonstrates input handling, conditional nesting, and the resulting output.
This tutorial walks you through installing the JDK, creating a HelloJava.java source file with Notepad, compiling it using javac, running it with the java interpreter, and explains the basic structure, comments, class definition, and main method of a Java program.
This guide walks through installing the JDK, configuring JAVA_HOME, PATH and CLASSPATH on Windows, and verifying the setup, showing that only the JDK and a basic text editor are needed to write and run your first Java program.
The article explains how Java source files are compiled into bytecode, run on the JVM across Windows, Linux, macOS, and Solaris, and describes the two parts of the Java platform—the virtual machine and the API—highlighting why Java’s “write once, run anywhere” model suits distributed, object‑oriented development.
The article lists eleven frequent mistakes that occur during the integration management stage of a project—such as missing charters, lack of authority, poor planning, inadequate monitoring, and incomplete closure—and then outlines the essential elements of a project charter, its inputs and outputs, and the comprehensive contents of an overall management plan.
This article outlines Java’s origin, its cross‑platform “write once, run anywhere” feature, the evolution of its SE, EE, and ME editions, and the key advantages that make Java a preferred language for desktop, web, enterprise, and embedded development.
This tutorial explains Python's selection structure by walking through three hands‑on exercises—checking if a number exceeds 16, determining odd or even, and calculating the day of the year (including leap‑year logic)—complete with code snippets and sample output.
