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HEAD FIRST JAVA SECOND EDITION EBOOK

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Head First Java 2nd Edition. Topics Head-First-Java-2nd-edition, cse. Collection opensource. LanguageEnglish. Head-First-Java-2nd-edition. head first java for beginners. Identifierhead-first-java-2nd-edition. Identifier-ark ark://t0dv5g OcrABBYY FineReader Pages And the new. second edition focuses on Java , the latest version of By exploiting how your brain works, Head First Java compresses the.


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Learning a complex new language is no easy task especially when it s an object- oriented computer programming language like Java. You might think the. Head First Servlets and JSP™, Second Edition, and related trade dress are Head First Java covers a huge amount of practical matters that other texts Kathy. What they're saying about Head First. Praise for other Head First books co- authored by Kathy and Bert. Head First Java, 2nd Edition, ISBN: .

Learning a complex new language is no easy task especially when it s an object-oriented computer programming language like Java. You might think the problem is your brain. It seems to have a mind of its own, a mind that doesn't always want to take in the dry, technical stuff you're forced to study. This book is approachable and fun, but it doesn't shy away from teaching the "hard stuff". It is very brain-friendly and tries to appeal to visual, verbal, and playful learners. The exercises are fun When I was trying to learn how to develop for Android I quickly came to the decision that I needed to learn Java if I wanted to be any good at coding for Android.

Head First Java: Kathy Sierra , Bert Bates. The fact is your brain craves novelty. It's constantly searching, scanning, waiting for something unusual to happen.

Head First Java 2nd Edition

After all, that's the way it was built to help you stay alive. It takes all the routine, ordinary, dull stuff and filters it to the background so it won't interfere with your brain's real work--recording things that matter.

How does your brain know what matters?

It's like the creators of the Head First approach say, suppose you're out for a hike and a tiger jumps in front of you, what happens in your brain? Neurons fire. Emotions crank up. Chemicals surge.

That's how your brain knows. And that's how your brain will learn Java.

Head First Java combines puzzles, strong visuals, mysteries, and soul-searching interviews with famous Java objects to engage you in many different ways.

It's fast, it's fun, and it's effective. And, despite its playful appearance, Head First Java is serious stuff: You'll learn everything from the fundamentals to advanced topics, including threads, network sockets, and distributed programming with RMI. And the new. A Dog example 4. Methods Use Instance Variables: How Objects Behave Remember: The size affects the bark You can send things to a method You can get things back from a method You can send more than one thing to a method Calling a two-parameter method, and sending it two arguments You can pass variables into a method, as long as the variable type matches the parameter type Java is pass-by-value.

That means pass-by-copy Cool things you can do with parameters and return types Encapsulation Do it or risk humiliation and ridicule Hide the data Encapsulating the GoodDog class How do objects in an array behave? Declaring and initializing instance variables The difference between instance and local variables Comparing variables primitives or references 5.

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Writing a Program: A bug? A different game interaction More about for loops Regular non-enhanced for loops Trips through a loop Difference between for and while The enhanced for loop Casting primitives 6.

Using the Java Library In our last chapter, we left you with the cliff-hanger. How do we fix it? Inheritance and Polymorphism: Understanding Inheritance An inheritance example: Which methods should we override? Looking for more inheritance opportunities Which method is called? Who gets the Porsche, who gets the porcelain? When designing with inheritance, are you using or abusing? So what does all this inheritance really buy you?

Inheritance lets you guarantee that all classes grouped under a certain supertype have all the methods that the supertype has. Interfaces and Abstract Classes: Serious Polymorphism Did we forget about something when we designed this?

Why not make a class generic enough to take anything? Using polymorphic references of type Object has a price Making and Implementing the Pet interface 9.

Head-First-Java-2nd

Constructors and Garbage Collection: If local variables live on the stack, where do instance variables live? How do you invoke a superclass constructor? Can the child exist before the parents? Superclass constructors with arguments Invoking one overloaded constructor from another Now we know how an object is born, but how long does an object live?

What about reference variables? Numbers and Statics: Static variable: Math methods Wrapping a primitive Before Java 5. Wrappers have static utility methods too! And now in reverse So much for numbers, what about dates? Exception Handling: I failed. Ducking by declaring only delays the inevitable Getting back to our music code Using command-line args to experiment with sounds Getting GUI: Getting a user event Listeners, Sources, and Events Getting back to graphics We can paint graphics. But can we paint graphics when we get an event?

GUI layouts: How do you get action events for two different buttons, when each button needs to do something different? Inner class to the rescue!

head-first-java-2nd-edition

Using Swing: Different layout managers have different policies The Big Three layout managers: What needs to be saved? If you want your class to be serializable, implement Serializable Deserialization: Networking and Threads: Every Thread needs a job to do.

A method to put on the new thread stack To make a job for your thread, implement the Runnable interface The Thread Scheduler Putting a thread to sleep Using sleep to make our program more predictable Making and starting two threads What will happen?

Um, yes. Make the increment method atomic. Synchronize it! Collections and Generics: ArrayList is not the only collection You could use a TreeSet Or you could use the Collections. The Song class needs to implement Comparable The new, improved, comparable Song class We can sort the list, but The sorting all works, but now we have duplicates How a HashSet checks for duplicates: What could happen if it were allowed Wildcards to the rescue Alternate syntax for doing the same thing

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