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COMS W1004 Lecture Notes - Lecture 24: Object-Oriented Programming, Reference Type
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Java Lecture 24, 4/19/2019 • Inheritance: mechanism central in Object Oriented Programming o Allows us to write extensible code • Example: BankAccount and Checking o Consider Checking: ...

Computer Science
COMS W1004
Adam Cannon
COMS W3134 Lecture Notes - Lecture 3: Linear Search
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Data Structures Lecture 3 9/14/2016 Announcements: • Discussion sections posted and starting this week Lecture: • Big-O o 𝑇 𝑛 is the exact number of steps, actual time. • 𝑇 𝑛 = ...

Computer Science
COMS W3134
Paul Blaer
COMS W3134 Lecture Notes - Lecture 1: Linear Search, Binary Search Algorithm
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Lecture 1: Course Overview, Introduction to Data Structures and Algorithms, Some Java Review Logistics • Paul Blaer (pblaer@cs.columbia.edu) • Office Hours: Tue/Thur 2 -4pm at 703 CEPSR • TA office hours in ...

Computer Science
COMS W3134
Paul Blaer
COMS W1004 Lecture Notes - Lecture 6: For Loop
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This class rules import java util. Scanner public class Grades public static void main (String args) make scanner and get input Scanner scan new Scanner(System in) System.out.println ("What's your score???" double score sc...

Computer Science
COMS W1004
Adam Cannon
COMS W3134 Lecture Notes - Lecture 24: Disjoint Sets, Priority Queue, Binary Heap
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Data Structures Lecture 24 12/5 Announcements: • HW 5 due tomorrow Tue 12/6 • Allowed to modify merge method from textbook for Programming problem 1 Lecture: • Dijkstra's Algorithm o From Textboo...

Computer Science
COMS W3134
Paul Blaer
COMS W1004 Lecture Notes - Lecture 11: Parity Bit, Simon & Garfunkel, Boolean Expression
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Java-Lecture 11, 2/23/16 Midterm next Thursday, 3/3 • Chapters 4-5 on S&G • NO need to read about coders and multiplexors • List of words need to know, Cannon will post on Courseworks Review session given...

Computer Science
COMS W1004
Adam Cannon
COMS W1004 Lecture Notes - Lecture 21: Call Stack
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Java Lecture 21, 4/7/2016 • Example.java o o Once having file object, can establish s tream using Scanner o Output stream can be done with one step called PrintWriter ...

Computer Science
COMS W1004
Adam Cannon
COMS W1004 Lecture Notes - Lecture 13: Umber, Static Variable, Instance Variable
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Java-Lecture 13, 3/1/16 Midterm 3/3 Thursday • Components: o 10 definitions given, write terms given from the "terms to know for midterm" document o 40 multiple questions • Sample qu...

Computer Science
COMS W1004
Adam Cannon
COMS W1004 Lecture Notes - Lecture 27: Microarchitecture, Pseudocode, Time Complexity
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Java Lecture 27, 4/28/2016 Cumulative Final Sign up sheet will be sent tonigh t, sign it before Wednesday next week Final Review • Topics in Computer Science (Chapters 1-5, 7, and 12in Schneider and Gersting) • ...

Computer Science
COMS W1004
Adam Cannon
COMS W1004 Lecture Notes - Lecture 25: Late Binding, Compile Time
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Java, Lecture 25, 4/21/2016 • Superclass o BankAccount -> Checking • Checking c = new Checking(); • BankAccount b; • b = c; • //I...

Computer Science
COMS W1004
Adam Cannon
COMS W3134 Lecture Notes - Lecture 6: Linked List, Instance Variable, Iterator
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Data Structures Lecture 6 9/26 Announcements: • HW1 solutions posted on Wednesday • Do a good amount of HW2 this weekend so Blaer can have useful feedback on whether or not to extend the deadline Lecture...

Computer Science
COMS W3134
Paul Blaer
COMS W3134 Lecture Notes - Lecture 4: Abstract Data Type, Fibonacci Number, Hard Coding
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Lecture 4 Monday, September 19, 20166:07 PM Data Structure Lecture 4 9/19/2016 Announcements • Read Chapter 2 • Homework due Friday • For Problem 1 ○ Can hard code arrays in • For Problem 2 ...

Computer Science
COMS W3134
Paul Blaer
COMS W1004 Lecture Notes - Lecture 17: Dynamic Array, Dollar Sign
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Java, Lecture 17, 3/24/16 • CDCollection.java o o o o (Examples will be drawn from this on the final exam) o Constructor "CD...

Computer Science
COMS W1004
Adam Cannon
COMS W1004 Lecture Notes - Lecture 14: Search Algorithm, Binary Search Algorithm, Linear Search

Mid Term Monday, March 2, 2015 4:16 PM • Look at problems in textbook similar to homework problems • Class files, basic theory • Breadth over depth ...

Computer Science
COMS W1004
Paul Blaer
COMS W3134 Lecture Notes - Lecture 7: Doubly Linked List, Linked List, Dynamic Array
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Data Structures Lecture 7 9/28 Announcements • HW1 will be graded and up soon • Lectures will be video recorded on religious holiday classes o Definitely will record class the night before Thanksgivin...

Computer Science
COMS W3134
Paul Blaer

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