CIS 121: Data Structures and Algorithms Course Lecture Notes Steven Bursztyn, Rajiv Gandhi, and John Geyer ∗ Draft of: April 14, 2020 University of Pennsylvania ∗ see acknowledgments on next page Goal There is no one book that covers everything that we want to cover in CIS 121. The goal of these notes is for […]
CSE 216 PROGRAMMING ABSTRACTIONS Dr. Ritwik Banerjee Computer Science, Stony Brook University Overview of topics Programming paradigms Functional programming Object-oriented design and programming Cross-cutting concepts Parallel Programming scopes bindings parameter passing type systems recursion higher-order procedures streams and lazy evaluation abstraction and encapsulation class hierarchy polymorphism and inheritance object-oriented design principles multi-paradigm programming unit testing
Introduction to the theory of programming languages CSE 216 – Programming Abstractions Department of Computer Science, Stony Brook University Dr. Ritwik Banerjee © 2019 Ritwik Banerjee What is a programming language? Let us look at some of the simplest computations – arithmetic expressions: •For example, an expression like 1 + 4 * 4 / 2
More on data types Dr. Ritwik Banerjee CSE 216 : Programming Abstractions Stony Brook University, Computer Science Scalar and Composite Types • Attheverytop,typescanbedividedintoscalarandcompositetypes. • Ascalartypeisatypewhosevalues occupy a fixed amount of memory, and are atomic, that is, a value is not subdivided further in any way. e.g., int in C, C++, and Java.
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Computer Organization Spring 2020 Programming Project: 2048 Game 1 Introduction Have you ever played the popular 2048 game? It is a single-player sliding block puzzle game designed by the Italian web developer Gabriele Cirulli. The game’s objective is to slide numbered tiles on a grid to combine them to create a tile with the number
CSE 216 PROGRAMMING ABSTRACTIONS Dr. Ritwik Banerjee Computer Science, Stony Brook University Who, where, & What Instructor Dr. Ritwik Banerjee • rbanerjee@cs.stonybrook.edu OfficeHours: 206 New Computer Science Monday 2:30 pm – 4:00 pm Wednesday 11:00 am – 12:30 pm Course https://sites.google.com/cs.stonybrook.edu/cse-216 What’s it all about? • Studyingmultipleprogrammingparadigms, abstractions, and languages to understand their strengths and
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Functional Elements and Evaluations in Java CSE 216 : Programming Abstractions Department of Computer Science Stony Brook University Dr. Ritwik Banerjee Functional Programming The boundaries between language categories are fuzzy. • Mostlyfunctional:Haskell,Lisp,ML. • Mostlyimperative,withsomeelementsof functional programming: Java, Python. Functional languages typically heavily depend on (sometimes implicit) parametric polymorphism and the use of lists. • Wehaveseentwotypesofexplicitpolymorphism
Parameter Passing CSE 216 : Programming Abstractions Department of Computer Science Stony Brook University Dr. Ritwik Banerjee Pass by value • Also known as “call by value”. • The arguments to a function are fully evaluated before the function is invoked. • The resulting value is copied into a location. This location is used to
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Types & Type Systems CSE 216 – Programming Abstractions Department of Computer Science, Stony Brook University Dr. Ritwik Banerjee © 2019 Ritwik Banerjee Undefined programs • Recall that using 𝜆-calculus, we were able to construct programs like 𝜆𝑥. 𝑥 𝑦 that have no defined semantics, and as such, are irreducible. • Wehavenowaytorestrictthefunctionseither,andcouldendupwith meaningless programs because
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Concurrent Programming CSE 216 : Programming Abstractions Department of Computer Science Stony Brook University Dr. Ritwik Banerjee A. Singlecoremachinewithoutanyconcurrency runs only one application at a time (no more coding while listening to music) B. Singleapplicationwithconcurrency read digital audio off the network and decompress it and manage playback while updating display. •