Prep code for the real StartupBust class.Who does what in the StartupBust game (and when).Letâs build the REAL game: âSink a Startupâ.Option two is a little better, but still pretty clunky.In our last chapter, we left you with the cliff-hanger: a bug.Using the Java Library: Get to Know the Java API Prep code for the SimpleStartupGame class Everything happens in main().Final code for SimpleStartup and SimpleStartupTestDrive.Writing test code for the SimpleStartup class.The three things weâll write for each class:.The âSimple Startup Gameâ a gentler introduction.Letâs build a Battleship-style game: âSink a Startupâ.Extra-Strength Methods: Writing A Program Comparing variables (primitives or references).The difference between instance and local variables.Declaring and initializing instance variables.Do it or risk humiliation and ridicule.Cool things you can do with parameters and return types.You can pass variables into a method, as long as the variable type matches the parameter type.Calling a two-parameter method and sending it two arguments.You can send more than one thing to a method.Can every object of that type have different method behavior?.Remember: a class describes what an object knows and what an object does.How Objects Behave: Methods Use Instance Variables What happens if the Dog is in a Dog array?.Control your Dog (with a reference variable).An object reference is just another variable value. You really donât want to spill that.âIâd like a double mocha, no, make it an int.â.Know Your Variables: Primitives and References A class is not an object (but itâs used to construct them).Whatâs the difference between a class and an object?.When you design a class, think about the objects that will be created from that class type.So, Brad the OO guy got the chair and desk, right?.At Bradâs laptop on his lawn chair at the Telluride Bluegrass Festival.A Trip to Objectville: Classes and Objects Monday morning at Bobâs Java-enabled house.Breaking the Surface: Dive In: A Quick Dip Just when you thought there wouldnât be any more acknowledgments*.Other people to credit, for the 2nd Edition.Other people to acknowledge for the 3rd Edition.Technical Reviewers for the 3rd Edition.Hereâs what YOU can do to bend your brain into submission.And we know what your brain is thinking.Who should probably back away from this book?.Other books in OâReillyâs Head First series.With Head First Java, you'll learn Java through a multisensory experience that engages your mind, rather than by means of a text-heavy approach that puts you to sleep. If you've read a Head First book, you know what to expect-a visually rich format designed for the way your brain works. If you have experience with another programming language, Head First Java will engage your brain with more modern approaches to coding-the sleeker, faster, and easier to read, write, and maintain Java of today. Through puzzles, mysteries, and soul-searching interviews with famous Java objects, you'll quickly get up to speed on Java's fundamentals and advanced topics including lambdas, streams, generics, threading, networking, and the dreaded desktop GUI. With this book, you'll learn the Java language with a unique method that goes beyond how-to manuals and helps you become a great programmer. Head First Java is a complete learning experience in Java and object-oriented programming.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |