Tokenization and parsing
We have implemented a small calculator. We can enter an expression, the calculator prints the value of the expression. How does the calculator get from the expression (which i
Stacks
A stack is an abstract data type based on the principle of Last In First Out (LIFO). Just think about a stack of books or dishes. A stack supports the following operations: Push something on th
Searching and Sorting
Searching
An important use of computers is for looking up datahow often have you turned on your computer just to google for something? The process of looking up data is called se
References
Java distinguishes two kinds of variables. Variables of primitive type store a value directly. Primitive types are: byte short int long float double char boolean 8-bit integer 16-bit intege
Recursion
Recursion means to dene something in terms of itself. It is a powerful problem-solving technique. Example: Printing a number in any base What is the number 83790 in base 8. Yes, the answer i
The Rank Tree
We introduce a data structure called the rank tree to solve the Josephus problem efficiently. The Josephus Problem n players, numbered 1 to n, are sitting in a circle; starting at player
Quiz #1 Sep. 28, 2009 Student ID: Name:
A stack must provide the following operations. We make use of an interface in Java. public interface Stack<AnyType> cfw_ void clear(); boolean isEmpty(); AnyTyp
Programming a simulation
Simulation is an area where object-oriented programming really helps. This is because in a simulation, we typically have several things (objects) that interact with each other
Maps Maps
Let's add variables to our simple calculator. A variable should store a number.
>A => >3 => =7 A=7 * (A + 5) 5) 36
Building Building a concordance
How How to print the map
The Map interface
Linked Lists
Linked lists can contain elements of the specified type. They are contained in nodes, and nodes are connected via links so that they have an ordering, see Fig. 1.
head .
Figure 1: A linke
Java 1
Code Conventions for Java Programming Language
2008-07-03
1
Sun Microsystems Inc. Code Conventions for the Java Programming Language
( http:/java.sun.com/docs/codeconv/html/CodeConvTOC.doc.htm
CS206 CS206 Data Structures
Fall, 2009 YoonJoon Lee
About About Lecture
Lecturer: Teaching Assistants:
YoonJoon Lee, office(E3-1, Rm# 3409), email([email protected]), Phone(x3523)
Location & T
Implementing flood fill
Paint programs often offer a flood fill function. When you click a point, the entire region around the point is painted with your selected color. How does this work? Bitmaps A
Hash function - Wikipedia, the free encyclopedia
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Hash function
From Wikipedia, the free encyclopedia
A hash function is any well-defined procedure or mathematical function which converts a larg
B-tree
From Wikipedia, the free encyclopedia
In computer science, a B-tree is a tree data structure that keeps data sorted and allows searches, insertions, and deletions in logarithmic amortized time.
Wikipedia is sustained Binary search tree by people like you. Please donate today.
From Wikipedia, the free encyclopedia
In computer science, a binary search tree (BST) is a binary tree data structure
B+ tree - Wikipedia, the free encyclopedia
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B+ tree
From Wikipedia, the free encyclopedia
In computer science, a B+ tree (BplusTree) is a type of tree which represents sorted data in a way that
Binary Trees Definition: A binary tree t is either empty or consists of an item, called the root item, and two ry disjoint binary trees, called left subtree and right subtree of t. t
The binary tree
i
M Binary heapake a donation to Wikipedia and give the gift of knowledge!
From Wikipedia, the free encyclopedia
A binary heap is a heap data structure created using a binary tree. It can be seen as a b
CS 61B: Lecture 25 Wednesday, October 25, 2006 Today's reading: Goodrich & Tamassia, Sections 8.1-8.3.
PRIORITY QUEUES = A priority queue, like a dictionary, contains _entries_ that each consist of a
AVL tree
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From Wikipedia, the free encyclopedia
In computer science, an AVL tree is a self-balancing binary search tree, and it is the first
Autoboxing and unboxing
Java type parameters can only be instantiated with object types, but not with primitive types. This is because the compiler can think about a type parameter simply as a referen
Algorithm Analysis
Algorithm
An algorithm is a finite set of well-defined instructions that takes some set of values as input and produces some set of values as output to solve a problem. An algorithm
Abstract Data Types
An abstract data type (ADT) is a specication of the set of operations that can be performed on the data stored by the ADT. An ADT is abstract in the sense that it is independent of
CS 61B: Lecture 27 Monday, October 30, 2006 2-3-4 TREES = A 2-3-4 tree is a perfectly balanced tree. It has a big advantage over regular binary search trees: because the tree is perfectly balanced, fi
Disjoint-set data structure - Wikipedia, the free encyclopedia
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Disjoint-set data structure
From Wikipedia, the free encyclopedia
Given a set of elements, it is often useful to break them up or