CS1: Lecture 34 – Reverse Engineering Objects
Dear students, In object-oriented programming, the programmer is really a writer of screenplays. Objects are our actors, which we orchestrate around the stage. We cue them to say certain things, have them interact with other objects, and shape them to have an identity that is all their own. Today, we’ll feel our away around the […]
CS 148 Lab 11 – Objects
Welcome to lab 11! If you have checkpoints from the last lab to show your instructor or TA, do so immediately. No credit will be given if you have not already completed the work, nor will credit be given after the first 10 minutes of this lab. In this lab you will create a bare-bones […]
CS 145 Lab 11 – Objects
Welcome to lab 11! If you have checkpoints from the last lab to show your instructor or TA, do so immediately. No credit will be given if you have not already completed the work, nor will credit be given after the first 10 minutes of this lab. In this lab you will create a bare-bones […]
CS1: Lecture 33 – A Growable Array
Dear students, Today, November 22, is National Growable Array Day. We will celebrate growable arrays everywhere by growing one of our own growable arrays, right here, in our classroom. I hope you wore your festive gear. Behind every growable array is an plain old ungrowable array. When that ungrowable array gets filled up, a new […]
CS1: Lecture 32 – More Objects
Dear students, Last time we started our discussion of objects. We continue that discussion today with more examples. Out of concrete examples we build generalized knowledge, right? It’s not the other way around. At this point in the learning process, seeing patterns is more important than feeling like you understand objects. Both need to happen […]
CS 145 Lab 10 – Objects and ArrayList
Welcome to lab 10! If you have checkpoints from the last lab to show your instructor or TA, do so immediately. No credit will be given if you have not already completed the work, nor will credit be given after the first 10 minutes of this lab. In this lab you will create our own […]
CS1: Lecture 31 – A First Object
Dear students, Today we move on to our last personality: the Computer as a Creator. Up till this point, code and data have been separate entities in our code. Now, we will marry them. We’ll organize code and the data that it operates on into a single being: an object. Objects are models of some […]
CS 148 Lab 10 – Objects and ArrayList
Welcome to lab 10! If you have checkpoints from the last lab to show your instructor or TA, do so immediately. No credit will be given if you have not already completed the work, nor will credit be given after the first 10 minutes of this lab. In this lab you will create our own […]
CS1: Lecture 30 – 2D Arrays and ArrayList
Dear students, Today we will complete a whirlwind tour through a couple of concepts that really deserve a couple of conversations each. These concepts are two-dimensional arrays and ArrayList. Two-dimensional Arrays Let’s consider a famous statistical problem. Suppose birthdays are uniformly distributed across the calendar year. What’s the probability that we in this room all […]
CS 145 Lab 9 – Arrays
Welcome to lab 9! If you have checkpoints from the last lab to show your instructor or TA, do so immediately. No credit will be given if you have not already completed the work, nor will credit be given after the first 10 minutes of this lab. In this lab you will work with data […]