William Jojo – Page 3 – Programming by Design

Comparative Languages

October 1, 2023July 14, 2024 William Jojo

Code

(Updated July 14, 2024) String name; int len; name = “Bill”; len = name.length(); System.out.println(name.charAt(0)); System.out.println(name.charAt(1)); System.out.println(name.charAt(2)); System.out.println(name.charAt(3)); System.out.println(“The length of the string is ” + len); String name; int len; name = “Bill”; len = name.length(); System.out.println(name.charAt(0)); System.out.println(name.charAt(1)); System.out.println(name.charAt(2)); System.out.println(name.charAt(3)); System.out.println(“The length of the string is ” + len); String name; int len; name … Read More “Comparative Languages” »

Commodore 64

September 13, 2023April 21, 2024 William Jojo

C64

(Updated April 21, 2024) Table of contents Overview Emulation Operation Test Drive VICE Overview The Commodore 64 was notably the best-selling computer in history. It was inexpensive, easy to use, and had a following larger than any other platform from that period. Using the MOS-6510 (a descendant of the VIC-20’s MOS-6502), anyone familiar with the … Read More “Commodore 64” »

The Hex Dump

September 10, 2023November 19, 2024 William Jojo

Algorithms

(Updated November 19, 2024) Overview Hex dumps have been around for a very long time. Looking at binary is mind-numbing, and looking at decimal numbers is less than ideal. Using hexadecimal to show values is much easier on the eyes. With some experience, you can see the binary tucked inside, as each hex digit represents … Read More “The Hex Dump” »

Commodore 64 Code Examples

September 8, 2023April 21, 2024 William Jojo

C64

(Updated April 21, 2024) BASIC kaleid.bas 10 print chr$(147) 20 ca=1024:cp=54272:r=25:co=40 30 poke 53280,0:poke 53281,0 40 forw=3to50:fori=1to12:forj=0to12:k=i+j 50 c=j+j+j/(i+3)+i*w/12 60 k1=ca+i+(co*k):i1=ca+k+(co*i):c1=cp+k1:c2=cp+i1 70 k2=ca+(co-i)+(co*(r-k)):i2=ca+(co-k)+(co*(r-i)):c3=cp+k2:c4=cp+i2 80 k3=ca+(co-i)+(co*k):c5=cp+k3:i3=ca+k+(co*(r-i)):c6=cp+i3 90 k4=ca+(co-k)+(co*i):c7=cp+k4:i4=ca+i+(co*(r-k)):c8=cp+i4 100 poke k1,81:poke c1,c:poke i1,81:poke c2,c 110 poke k2,81:poke c3,c:poke i2,81:poke c4,c 120 poke k3,81:poke c5,c:poke i3,81:poke c6,c 130 poke k4,81:poke c7,c:poke i4,81:poke c8,c 140 nextj,i,w 150 goto … Read More “Commodore 64 Code Examples” »

Group Project 1 (of 2)

July 11, 2023September 25, 2024 William Jojo

CISS-111-Project

CISS-111 Group Project 1 Write a disassembler for Commodore 64 (C64) program in the 6502/6510 assembly language. Learning outcomes Working with a translation table. Working with existing data to build a new representation. Working with data type manipulations. Working with switch expressions. Working with unsigned byte data. Working with unique file formats. Confirmation program produces … Read More “Group Project 1 (of 2)” »

CISS-111 Project 8

May 1, 2023 William Jojo

CISS-111-Project

CISS-111 Project 8 Write a Java program to demonstrate using an N-ary tree to replicate a filesystem structure. Learning outcomes Working with N-ary trees. Working with existing code to build a new representation. Working with Nodes and how to arrange them based on certain criteria. Working with databases. Working with exceptions. Confirmation program produces desired … Read More “CISS-111 Project 8” »

IntelliJ JDBC Configuration

April 30, 2023October 30, 2024 William Jojo

Other

Updated October 30, 2024 Overview This documentation applies to some projects, notably Projects 5 and 8. It is also a basic setup for generic JDBC connectivity to a MySQL database. Setup You must download the MySQL JDBC jar file from https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-j-9.1.0.zip and then extract the contents of the zip file. You only need the mysql-connector-j-9.1.0.jar … Read More “IntelliJ JDBC Configuration” »

Introduction

March 25, 2023August 3, 2024 William Jojo

AsmBook

(Updated August 3, 2024) This textbook follows a few basic teaching paradigms, which are as follows: Constructivism – the premise that learning occurs through the physical building (construction) of solutions. Therefore, this is a project-based approach. Throughout this textbook, there are two primary subplots. During what would be considered the first half of the semester … Read More “Introduction” »

Acknowledgements

March 25, 2023March 25, 2023 William Jojo

AsmBook

March 2025 When I first began teaching, I knew nothing about how people learn, save one person – myself. The way I learned was nearly never the same as how others learned. So, after a couple of decades of honing my craft, I decided it was high time I invested in myself. My masters work … Read More “Acknowledgements” »

CISS-111 Project 5

March 15, 2023April 11, 2024 William Jojo

CISS-111-Project

CISS-111 Project 5 Write a Java program to demonstrate the use of linked lists further. Learning outcomes Working with Linked Lists. Reworking existing code to use a different data type. Working with Nodes and how to arrange them based on certain criteria. Working with databases. Working with exceptions. Confirmation program produces desired results. Setup Set … Read More “CISS-111 Project 5” »