CSE132 Examples

Replace -- a utility for replacing all occurrences of a string in a file

Replace.java (the source code)
Replace.java (the source code with javadoc comments)
Replace.html (the generated javadoc page)

Graph -- represents a graph containing vertices and edges

Graph.java
Visitor.java (an interface for depth first visiting of graph vertices)
NonMutatingIterator.java (wraps an iterator to prevent modification)
GraphTest.java (a simple JUnit test, incomplete code coverage)

Scanner Example -- illustrates use of java.util.Scanner

InteractiveScanner.java

XML Encoding -- creating XML from an object and displaying it

Person.java -- the class with a main method to output instances as XML

Test.xml -- the XML output generated

mystyle.css -- a style sheet for displaying it

Test.xml -- as displayed in your browser

screen shot -- how Test.xml is displayed in Safari (the Apple browser)

Layout Managers

GUILayoutExample.java -- Spring 2007 example using FlowLayout, BorderLayout, GridLayout, and GridBagLayout

GUI.java -- Spring 2006 example using FlowLayout, BorderLayout, GridLayout, and GridBagLayout

CascadingLayout.java -- a custom layout manager

Custom Components

PaintedBuffer.java -- for creating "thumbnail" images of a component

Model/View Separation

DocumentSharing.java -- two text areas and a button to control their sharing of a document

InfiniteTree.java -- an "infinite" tree model

ListeningPaintedBuffer.java -- a version of the painted buffer that updates due to property change events from the original component

SomeModelState.java -- a simple model with property change support

SomeView.java -- a simple view that listens for property change events to trigger updating

SomeViewTest.java -- a JUnit test with dialog box input for the user to check that the view changes as expected

Direct Manipulation

PanelWithOverlay.java -- a JLayeredPane that provides methods for raising and lowering components between a given content panel and the drag layer

Dragger.java -- provides direct manipulation by drag and drop between containers

EditableTree.java -- event handling and popup menu for manipulation of a tree model

image for "accept" cursor

image for "reject" cursor

Event Handling, Recording, and Playback

Scribble.java -- a view of for a sketch and its associated controller

EventRecorder.java -- a subclass of EventQueue that saves event information for playback

EventInfo.java -- an abstraction of mouse and keyboard event information

EventPlayer.java -- a subclass of Robot that plays back events saved by the EventRecorder

More about Customizing Components

ScrollingAround.java -- illustrates header rows and columns, pulldown menus, etc.

ShapeComponent.java -- illustrates overriding the paint method, colors, fonts, etc.

Picture.java -- a component that loads an image from a file, with example in main method

person.jpg -- an example file for use with the Picture.java main method; in Eclipse, file names are relative to the project directory

Midterm Exam

Review Sheet

OLD Sample Exam Questions -- the exam this year will be different in format, so this old sample exam is probably only marginally helpful

Answers to Sample Questions

Spring 2007 Midterm Exam

Spring 2007 Midterm Exam solutions

Threads and Concurrency Control

ThreadsExample.java -- creates and manages runnable objects in different ways to illustrate the effects

ProgressLoop.java -- a progress bar with a variety of different run() methods and a shared variable for illustrating concurrency control issues

DiningPhilosopher.java -- these philosophers don't wait for anyone

DiningPhilosopher2.java -- these philosophers eat one at a time

DiningPhilosopher3.java -- neighbors cannot eat simultaneously, but deadlock can occur without an arbitration lock (token) that must be held while acquiring both locks in an atomic step

DiningPhilosopher4.java -- neighbors cannot eat simultaneously, but in this solution symmetry is broken to avoid the possibility of deadlock

Blocking Queue

BlockingQueue.java -- an ADT for interacting producer/consumer threads

Client/Server Framework from Spring 2007

zip file -- zip file containing all of the following Java classes

Communicator.java -- supports sneding and receiving messages as objects

AbstractActiveClient.java -- for clients that explicitly receive messages when they are ready

AbstractReactiveClient.java -- for clients that handle messages whenever they arrive

AbstractServer.java -- a multithreaded server implementation with a factory method for creating communicators to handle interaction with each client

SquareServer.java -- an example server that accepts messages (integers) and returns their squares

SquareClient.java -- a client that sends a sequence of integers to a square server

Client/Server Framework from Previous Years

architecture diagram -- an overview of the framework

zip file -- containing all of these Java classes

ServerBehavior.java -- an interface that captures the server logic

ClientBehavior.java -- an interface that captures the client logic

AbstractServerBehavior.java -- a skeleton implementation of a ServerBehavior

AbstractClientBehavior.java -- a skeleton implementation of a ClientBehavior

Server.java -- a server that accepts client connections and creates a ClientHandler to handle each session in a separate thread

ClientHandler.java -- responsible for communication with each connected client (on the server side)

ClientManager.java -- responsible for communication at each client (on the client side)

ClientServerTest.java -- a sample application that creates a simple client and server within the framework

Remote Method Invocation (RMI) example

zip file -- zip file containing all of the following Java classes

Squarer.java -- the remote interface for the server

SquarerImpl.java -- the implementation of the server object

SquareServer.java -- creates a SquarerImpl and binds it in the rmi registry (be sure to start the rmiregistry first in the directory in which you will start the server)

SquareClient.java -- connects to the rmi registry and gets a remote referece to ths square server, and then makes calls on it

client.policy -- an example policy file that allows connections to any remote host

DisplayFrame.java -- a GUI support class

Reflection Examples

LineTool.java is an example plug-in for YOPS, which we developed for CSE131.

DataView has been used in our introductory CS course for visualization of arbitrary data structures by reflection. See, for example, Lab6.java and ListItem.java. Supporting classes can be found in the canvas package.