Head First cresadtgehomual.gq Head First Android Development, Dawn wrote three other Head First books. O'Reilly - Head First Object-Oriented Analysis & Design. You'll see why people say it's unlike any other Java book you've ever read. By exploiting how your brain works, Head First Java compresses the time it takes to . What they're saying about Head First. Praise for Head First Java. Praise for other Head First books co-authored by Kathy and Bert.
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Head First Java, 2nd Edition [Kathy Sierra, Bert Bates] on cresadtgehomual.gq and educational psychology, Head First books get your brain into learning mode. Head First Java book. Read reviews from the world's largest community for readers. Learning a complex new language is no easy task especially when it. If you want to read a book, i suggest you'll read Java 8 in Action. It's to the point and in depth. It covers most topics in the familiar “in action” style.
With money spread thin, who hasn't had to take on new tasks and learn new things?
And slashed training budgets mean there's little to rely on for learning except books- but learning a complex new programming language like Java from a book is no simple task. Maybe your boss is giving you two weeks to come up to speed for a project, or maybe you're ready to take that next step up in your current job, or be a more viable candidate for anewjob.
Whatever the reason, the onus is on you to learn. All these factors make it more important than ever to have a way to learn--fast.
And that's whatHead First Javadoes -- by exploiting the way your brain works, it compresses the time it takes to really learn.
Because its unique approach not only shows you what you need to know about Java syntax, it enables and encourages you to think like a Java programmer. Mastering object oriented programming requires a certain way of thinking, not just a certain way of writing code. The latest research in cognitive science, neurobiology, and educational psychology shows that learning at the deeper levels takes a lot more than text on a page. Actively combining words and pictures not only helps in understanding the subject, but in remembering it.
According to some studies, an engaging, entertaining, image-rich, conversational approach actually teaches the subject better. Head First Javaputs these theories into practice with a vengeance. Chock full of mind stretching exercises, memorable analogies, and stories, humor and attitude that aren't just pasted-on distractions but that are used to drive home key points and make ideas come alive, the Head First approach is as effective as it is unique.
It takes a pretty unique person to have developed such an innovative way to Learn Java. The two uses of main: Primitives and References: Back away from that keyword! Control your Dog with a reference variable What happens if the Dog is in a Dog array?
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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. 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 download you?
Head first java pdf book
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.
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!
Head First Java
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! 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?
From the Publisher
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, butI regret spending money on this title. Using Swing: The style makes it memorable which is the idea I'm sure but it also somewhat distracts. If you want to be bored, download some other book.
If local variables live on the stack, where do instance variables live? Don't take all that for the book being light on content. This is the best programming book I have ever read. If you have less time and you want to learn all important things about Java 8 , this is the book to refer to.
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