If you're not prepared to be wrong, you'll never come up with anything original. – Sir Ken Robinson
(Updated December 28, 2023) When programming or writing content for my books, I prefer to have some ambient noise, but something more than just white noise, but not as distracting as the punk music that Cameron Howe used in Halt and Catch Fire – which was a very accurate depiction of the technology world at … Read More “Background Sounds” »
(Updated January 31, 2024) Table of Contents Overview Statements Data Types Basic I/O Conditional Constructs Iterative Constructs Files Arrays Functions/Methods Overview This document is intended to provide a 10,000-foot view of the differences between Python and Java. This is not intended to be an exhaustive comparison of features and/or details. This document should be viewed … Read More “Python and Java” »
CISS-110 Project 3 This project deals with reading input from the user, storing the input into variables and displaying those variables. Learning outcomes Build a program from the ground up. Introduce basic GUI tools. Using correct data types. Watching for lost precision in calculations. Working with Integer.parseInt(). Confirmation program produces desired results. This program is … Read More “CISS-110 Project 3” »
CISS-150 Project 6 (10 points) (Updated April 28, 2025) Overview The Ubuntu VM provided to you has no swap/paging space. Examination through the use of free and top will reveal this. Ubuntu 17.04 and later allows the use of a file in the standard filesystem to provide the storage needed for paging space. You will … Read More “CISS-150 Project 6 – Swap/Paging Space” »
CISS-150 Project 2 (10 points) (Updated October 6, 2024) Overview For this project, you will gather hardware information on all three virtual machines provided by your instructor. These include Windows 10, Windows Server 2019, and Ubuntu 24.04. Learning Outcomes System hardware. Exposure to Linux commands and pseudo filesystems. Exposure to Windows command shell and PowerShell … Read More “CISS-150 Project 2 – Hardware” »
CISS-150 Project 8 (10 points) (Updated May 5, 2025) This project focuses on making protocols more secure. When a service is forward-facing to the Internet, a username and password are simply not strong enough to keep out the interlopers. In addition to enabling the Secure Shell protocol (SSH), you will implement certificate authentication and OATH-TOTP … Read More “CISS-150 Project 8 – Multifactor Authentication (MFA)” »
Here is the piece of code we worked on Tuesday. Remember that the for loop leaves x as the length of the String (not found) while indexOf() returns -1. import java.util.Scanner; public class Main { static Scanner kb = new Scanner(System.in); public static void main(String[] args) { int x; // 1 // 01234567890 String line=”ab,cd,e1,23,45″; … Read More “From October 6,2020” »
CISS-150 Project 5 (10 points) (Updated October 13, 2024) Overview Use Linux syscalls to simulate Java method calls like Scanner’s nextLine() method and PrintWriter’s printf() method. (similar to fgets() and printf() in C). Learning Outcomes Understanding basic assembly instructions. Understanding the connection of privileged calls and the Linux OS. Understanding the basics of syscalls. Getting … Read More “CISS-150 Project 5 – Assembly Language Syscalls” »
CISS-150 Project 4 (10 points) (Updated October 13, 2024) Overview In this project, you become somewhat familiar with assembly language, the CPU registers, and the primitive level of operation that occurs at the CPU. Learning Outcomes Understanding basic assembly instructions. Understanding CPU registers. Understanding the basics of calling subroutines. Creating a build-environment. Getting Started Begin … Read More “CISS-150 Project 4 – Assembly Language Basics” »
(Updated October 13, 2024) Table of Contents Overview Hello World! Syntax Instructions Operands FLAGS System Calls Assembly Language and C Overview This tutorial explains some of the basics of assembly language for the x86_64. This is focused primarily on the 64-bit programming model and calling subroutines on the Linux platform. This is not the same … Read More “Assembly Language With NASM” »