By Mr. Scott L. Hecht

This publication is a set of notes I created whereas studying Android programming for you to create my first Android app, «EquityYo! inventory and Fund Database». whereas i'm no Android programming genius (that a lot is certain!), i assumed it might be a good suggestion to collect jointly all of these tiny little programming information and tips Ive came across alongside the way in which and position them in a single spot.
i don't declare that every little thing during this booklet is a hundred% unique and that i totally admit to copy-and-pasting a number of tidbits from the Android documentation and stackoverflow.com. (The funds you're purchasing this publication is for the grueling six months it took me to benefit simple Android programming, code the examples, try all of them, learn difficulties and, eventually, write all of it down in a lovely and, confidently, enlightening and edifying format.) With that stated, all the examples proven within the e-book, in addition to the code, I created myself. due to the fact i'm an Android amateur, no matter if one could examine Android programming through examining this number of notes continues to be visible. Im convinced there are spots all through this ebook within which you'll say «What are you speaking about?». Please drop me an electronic mail if this e-book has helped you out otherwise you have feedback to make it higher (see my e mail tackle below).

It is thought that the reader has a few wisdom of programming, yet no wisdom of GUI or object-oriented programming is thought. additionally, no wisdom of Java programming is thought as chapters are devoted to introducing Java programming in addition to object-oriented programming.

If you think you may have came upon an mistakes or disagree with one among my reviews or causes (very possible!), please be at liberty to drop me a be aware at comments@sheepsqueezers.com. Dont overlook to prevent by way of www.sheepsqueezers.com to get extra files and displays on a number of issues. additionally, please stopover at our YouTube channel: sheepsqueezersYT.

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Click the X-button to close it. 35 Be aware that, just like a physical Android device (like a cell phone or tablet), when you install software on the emulator, it will be there once the emulator is restarted. That is, the emulator is not a pristine copy each time it is started. This makes sense because that is how your own physical Android device (like that fancy phone or tablet) works! Summary In this chapter, we installed the software and tools needed to create an Android application. In the subsequent chapters, we will delve into these tools in more detail.

38 6. In the Create Activity dialog box, ensure that the checkbox to the left of the text Create Activity is checked and that BlankActivity is highlighted. Click the Next button. 7. In the New Blank Activity dialog box, fill in the fields as follows: 39 a. Activity Name: This is the name of the class to create. Leave this set to MainActivity. b. Layout Name: This is the name of the layout with your activity. You can think of layout as being similar to HTML and the activity class as being the JavaScript that controls what happens when a use clicks or taps the layout.

Take note that I've added a car-specific attribute: ipodCharger which is true if the Car has a built-in IPod charger and false if not. Note that I've included both a getter and setter for this attribute within the Car class: class Car extends Vehicle { private boolean ipodCharger; public Car(String pExtClr,int pNumCyl,boolean pIPC) { super(pExtClr,pNumCyl); ipodCharger = pIPC; } public boolean getIpodCharger() { return(ipodCharger); } public void setIpodCharger(boolean pIPC) { ipodCharger = pIPC; } } As you see above, you use the extends keyword to indicate that the Car class will contain everything in the Vehicle class as well as everything coded within the Car class.

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