Table Of Content

CONTENTS Teach Yourself Java in 21 Days Professional Reference Edition by Laura Lemay, Charles L. Perkins and Michael Morrison C O N T E N T S Introduction Day 1 An Introduction to Java Programming l W hat Is Java? l Ja va's Past, Present, and Future l W hy Learn Java? m J ava Is Platform Independent m J ava Is Object Oriented m J ava Is Easy to Learn l G etting Started Programming in Java m G etting a Java Development Environment m I nstalling the JDK and Sample Files m C onfiguring the JDK m C reating a Java Application m C reating a Java Applet l T roubleshooting l S ummary l Q &A Day 2 Object-Oriented Programming and Java l T hinking in Objects: An Analogy l O bjects and Classes l B ehavior and Attributes file:///G|/ebooks/1575211831/index.htm (1 of 37) [11/06/2000 7:44:37 PM] CONTENTS m A ttributes m B ehavior m C reating a Class l In heritance, Interfaces, and Packages m I nheritance m C reating a Class Hierarchy m H ow Inheritance Works m S ingle and Multiple Inheritance m I nterfaces and Packages m C reating a Subclass l S ummary l Q &A Day 3 Java Basics l S tatements and Expressions l V ariables and Data Types m D eclaring Variables m N otes on Variable Names m V ariable Types m A ssigning Values to Variables l C omments l L iterals m N umber Literals m B oolean Literals m C haracter Literals m S tring Literals l E xpressions and Operators m A rithmetic m M ore About Assignment m I ncrementing and Decrementing m C omparisons m L ogical Operators m B itwise Operators m O perator Precedence l S tring Arithmetic file:///G|/ebooks/1575211831/index.htm (2 of 37) [11/06/2000 7:44:37 PM] CONTENTS l S ummary l Q &A Day 4 Working with Objects l C reating New Objects m U sing new m W hat new Does m A Note on Memory Management l A ccessing and Setting Class and Instance Variables m G etting Values m C hanging Values m C lass Variables l C alling Methods m C lass Methods l R eferences to Objects l C asting and Converting Objects and Primitive Types m C asting Primitive Types m C asting Objects m C onverting Primitive Types to Objects and Vice Versa l O dds and Ends m C omparing Objects m D etermining the Class of an Object l C lass and Object Reflection (Java 1.1) l T he Java Class Library l S ummary l Q &A Day 5 Arrays, Conditionals, and Loops l A rrays m D eclaring Array Variables m C reating Array Objects m A ccessing Array Elements m C hanging Array Elements m M ultidimensional Arrays file:///G|/ebooks/1575211831/index.htm (3 of 37) [11/06/2000 7:44:37 PM] CONTENTS l B lock Statements l i f Conditionals m T he Conditional Operator l s witch Conditionals l f or Loops l w hile and do Loops m w hile Loops m d o...while Loops l B reaking Out of Loops m L abeled Loops l S ummary l Q &A Day 6 Creating Classes and Applications in Java l D efining Classes l C reating Instance and Class Variables m D efining Instance Variables m C onstants m C lass Variables l C reating Methods m D efining Methods m T he this Keyword m V ariable Scope and Method Definitions m P assing Arguments to Methods m C lass Methods l C reating Java Applications m H elper Classes l Ja va Applications and Command-Line Arguments m P assing Arguments to Java Programs m H andling Arguments in Your Java Program l S ummary l Q &A file:///G|/ebooks/1575211831/index.htm (4 of 37) [11/06/2000 7:44:37 PM] CONTENTS Day 7 More About Methods l C reating Methods with the Same Name, Different Arguments l C onstructor Methods m B asic Constructors m C alling Another Constructor m O verloading Constructors l O verriding Methods m C reating Methods That Override Existing Methods m C alling the Original Method m O verriding Constructors l F inalizer Methods l S ummary l Q &A Day 8 Java Applet Basics l H ow Applets and Applications Are Different l C reating Applets m M ajor Applet Activities m A Simple Applet l In cluding an Applet on a Web Page m T he <APPLET> Tag m T esting the Result m M aking Java Applets Available to the Web l M ore About the <APPLET> Tag m A LIGN m H SPACE and VSPACE m C ODE and CODEBASE l Ja va Archives l P assing Parameters to Applets l S ummary l Q &A file:///G|/ebooks/1575211831/index.htm (5 of 37) [11/06/2000 7:44:37 PM] CONTENTS Day 9 Graphics, Fonts, and Color l T he Graphics Class m T he Graphics Coordinate System l D rawing and Filling m L ines m R ectangles m P olygons m O vals m A rcs m A Simple Graphics Example m C opying and Clearing l T ext and Fonts m C reating Font Objects m D rawing Characters and Strings m F inding Out Information About a Font l C olor m U sing Color Objects m T esting and Setting the Current Colors m A Simple Color Example l S ummary l Q &A Day 10 Simple Animation and Threads l C reating Animation in Java m P ainting and Repainting m S tarting and Stopping an Applet's Execution m T he Missing Link: Threads m P utting It Together l T hreads: What They Are and Why You Need Them m W riting Applets with Threads m A nother Look at the Digital Clock l R educing Animation Flicker m F licker and How to Avoid It m H ow to Override update() file:///G|/ebooks/1575211831/index.htm (6 of 37) [11/06/2000 7:44:37 PM] CONTENTS m S olution One: Don't Clear the Screen m S olution Two: Redraw Only What You Have To l S ummary l Q &A Day 11 More Animation, Images, and Sound l R etrieving and Using Images m G etting Images m D rawing Images m A Note About Image Observers m M odifying Images l C reating Animation Using Images m A n Example: Neko l R etrieving and Using Sounds l U sing Animation Packages m S un's Animator Applet m D imension X's Liquid Motion l M ore About Flicker: Double-Buffering m C reating Applets with Double-Buffering m A Note on Disposing Graphics Contexts m A n Example: Checkers Revisited l S ummary l Q &A Day 12 Managing Simple Events and Interactivity l M ouse Clicks m M ouse Down and Mouse Up Events m A n Example: Spots m D ouble-Clicks l M ouse Movements m M ouse Drag and Mouse Move Events m M ouse Enter and Mouse Exit Events m A n Example: Drawing Lines m K eyboard Events file:///G|/ebooks/1575211831/index.htm (7 of 37) [11/06/2000 7:44:37 PM] CONTENTS m T he keyDown() and keyUp() Methods m D efault Keys m A n Example: Entering, Displaying, and Moving Characters m T esting for Modifier Keys and Multiple Mouse Buttons l T he awt Event Handler l S ummary l Q &A Day 13 Creating User Interfaces with the awt l A n awt Overview l T he Basic User Interface Components m L abels m B uttons m C heck Boxes m R adio Buttons m C hoice Menus m T ext Fields l P anels and Layout m L ayout Managers: An Overview m T he FlowLayout Class m G rid Layouts m B order Layouts m C ard Layouts m G rid Bag Layouts m I nsets l H andling UI Actions and Events l N esting Panels and Components m N ested Panels m E vents and Nested Panels l M ore UI Components m T ext Areas m S crolling Lists m S crollbars and Sliders m C anvases l M ore UI Events file:///G|/ebooks/1575211831/index.htm (8 of 37) [11/06/2000 7:44:37 PM] CONTENTS l F un with Components l A Complete Example: RGB-to-HSB Converter m D esigning and Creating the Applet Layout m D efining the Subpanels m H andling the Actions m U pdating the Result m T he Complete Source Code l U p and Coming in Java 1.1 l S ummary l Q &A Day 14 Windows, Networking, and Other Tidbits l W indows, Menus, and Dialog Boxes m T he awt Window Classes m F rames m C losing Windows m M enus m D ialog Boxes m C ursors m W indow Events m S tandalone awt Applications l N etworking in Java m C reating Links Inside Applets m O pening Web Connections m o penStream() m S ockets m C hanges to Sockets for Java 1.1 l O ther Applet Hints m T he showStatus() Method m A pplet Information m C ommunicating Between Applets l S ummary l Q &A file:///G|/ebooks/1575211831/index.htm (9 of 37) [11/06/2000 7:44:37 PM] CONTENTS Day 15 Modifiers, Access Control, and Class Design l M odifiers l C ontrolling Access to Methods and Variables m W hy Access Control Is Important m T he Four Ps of Protection m M ethod Protection and Inheritance m I nstance Variable Protection and Accessor Methods l C lass Variables and Methods l F inalizing Classes, Methods, and Variables m F inalizing Classes m F inalizing Variables m F inalizing Methods l A bstract Classes and Methods l S ummary l Q &A Day 16 Packages and Interfaces l P rogramming in the Large and Programming in the Small l W hat Are Packages? l U sing Packages m F ull Package and Class Names m T he import Command m N ame Conflicts m A Note About CLASSPATH and Where Classes Are Located l C reating Your Own Packages m P ick a Package Name m C reate the Directory Structure m U se package to Add Your Class to a Package m P ackages and Class Protection l W hat Are Interfaces? m T he Problem of Single Inheritance m A bstract Design and Concrete Implementation m I nterfaces and Classes l Im plementing and Using Interfaces file:///G|/ebooks/1575211831/index.htm (10 of 37) [11/06/2000 7:44:37 PM]