Computer Science 252
Problem Solving with Java

Spring 2015, The College of Saint Rose

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Class examples will be linked below. Please report any missing examples.

Java Review and Objectdraw Basics

• TouchyWindow - basic event handlers and Text object
• ColorEvents - more graphics primitives, more event handlers, setting colors.
• SunAndMoon - moving objects in response to events
• MouseDroppings - accessing the mouse location
• SpiralLines - remembering a mouse location in an instance variable
• Scribble - update the saved location on each drag event
• RubberBand - changing the endpoint of a line
• ClickCounter - using an int variable, changing the contents of a Text object, constructing a string from an int
• Rectangles - basic conditional, the null object
• NudgeBall - testing for containment of a point in a graphics object
• UglyDragABall - dragging an object, but not very nicely
• DragABall - dragging an object much more nicely
• ColorfulSpiralLines - Random integer to select among a limited set of colors
• MoreColorfulSpiralLines - generating a custom color (randomly)
• CrazyColorfulSpiralLines - even more random colors
• Basketball - more interesting dragging application
• Basketball2 - dynamic canvas size, font sizes, centering objects
• BasketballShots - a more realistic basketball game
• ColorfulSunset - doing math on color

Defining Classes

• NiceBasketball - a fancy-looking basketball (that just sits there)
• Arcs - examples of FramedArc and FilledArc objects
• FancyBasketball - a class defining a fancy basketball which is used by another class to play our basketball game
• DrawBBalls - lots of instances of the basketball
• Drag2Shirts - two instances of a custom object
• DragCars - example of another custom object with lots of methods
• DoNotEnter - another example of another custom object
• BookGame - yet another example of a custom object

Repetition and Active Objects

• RailroadClick - click to cause repetition
• Railroad - a while loop for repetition
• RandomOvalsOnClick - a for loop to draw 1000 dots with random colors and random positions on each click
• DiagonalOvals - another while loop
• Knitting - a nested loop structure
• FallingBalls - a simple ActiveObject of falling objects
• VanishingScribble - a scribble program enhanced with some active objects
• PatheticPong - first attempt at a pong game, this one with a paddle that does not interact with the ball
• LessPatheticPong - the ball can now be struck by the paddle
• Pong - the ball can now bounce off the walls
• TiltPong - communicating with the active object in pong
• Snowman - importing and using graphical images
• StayPuft - importing and using graphical images
• FallingSnow - multiple active objects
• WindyFallingSnow - falling snow with a "wind" active object

Java Interfaces

• ShirtsAndPants - a Java interface to allow multiple laundry types
• FallingThings - using Objectdraw's Drawable2DInterface to have a generic "falling thing" implementation
• HandlingArrowKeys - how to handle arrow key presses and releases.

Swing

• FallingBallUglyButtons - an example that needs but doesn't use GUI components
• FallingBallButtons - the JButton
• FallingBallButtonsPanel - the JPanel
• FallingBallComboButton - the JComboBox
• FallingBallComboReact - handling JComboBox events
• FallingBallSlider - the JSlider and handling ChangeEvents
• SwingFallingSnow - bringing some GUI components to our falling snow example

Recursive Structures and Methods

• NestedSquaresLoop - loop-based nested squares
• NestedSquaresRec - recursive constructor for nested squares
• NestedSquaresDrag - drag around nested squares using recursive data structure and recursive move method
• BigSnowman - another example of a recursive constructor and methods
• NestedSquaresSizes - drag around nested squares but with multiple sizes, ability to set color or get info using recursive methods
• Powers - compute powers (base raised to an exponent) iteratively and recursively
• SimplestRecScribbler - defining a recursive scribble data structure
• SimpleRecScribbler - using the recursive scribble data structures
• RecWoodPile - a stack of wood to which we can add logs or remove logs only from the top
• ChainReaction - another recursive data structure, combined with some animation
• RecScribbler - adding a list of scribbles to allow dragging/coloring of all existing scribbles
• Broccoli - a recursive structure representing a piece of broccoli
• BroccoliBetter - a recursive structure representing a piece of broccoli using an interface to simplify code
• LivingFractal - build a fractal shape recursively with an active object

Collections

• Drag4Shirts - ArrayList motivation
• Drag4ShirtsArrayList - ArrayList introduction
• Drag10Shirts - ArrayList example
• DrawRoads - draw segments of roads, using a loop to draw center lines
• DragRoads - drag a segment of road, uses ArrayList to store road segment components
• DragAllRoads - drag any segment of road, also uses ArrayList to store all road segments
• DragAllRoadsRemove - add capability to remove road segments from the ArrayList
• MovingFlags - adding a dragging capability to our flag example with ArrayLists
• PongBricks - a pong game that can hit bricks
• DragAllRoadsForeach - using a for each loop to iterate over ArrayList contents
• CourseGrades - using ArrayLists to track students and their grades
• Drag10ShirtsArray - first array example
• Drag10ShirtsNicer - array with initializer
• Drag20Shirts - reuse colors using modulo arithmetic
• GradeRangeCounter - arrays of primitive types, initialized arrays
• DragStudentsS15 - drag around pictures of students, using a random non-overlapping placement
• SalesGraph - arrays and ArrayLists combined with some GUI and graphics - example partially developed in class
• TicTacToe - 2D array example
• Breakout - a breakout game using 2D arrays and lots of other fun things
• Matrix2D - a two-dimensional matrix class with some basic methods

Strings and Characters

• Hangman - the word guessing game, demonstrating more String and char/Character manipulations

Concurrency

• ATM1 - demonstrating the dangers of concurrency
• ATM2 - demonstrating the dangers of concurrency
• ATM3 - demonstrating how to avoid the dangers of concurrency

Programming Without Objectdraw

• StaticStuff - instance variables vs. class variables
• StaticCount - an example of a static variable that is not a constant
• StdGraphicsDemo - an example of Java standard graphics

Wrapup Examples

• TicTacToeSwing - a GUI version of the Tic-Tac-Toe game
• FiveGuys - a very complex Swing GUI for ordering your burgers and fries