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By Jeanne Boyarsky, Scott Selikoff
Whole, depended on education for the Java Programmer II examination OCP: Oracle qualified expert Java SE eight Programmer II examine Guide is your finished better half for getting ready for examination 1Z0-809 in addition to improve examination 1Z0-810 and examination 1Z0-813.
With complete insurance of a hundred% of examination targets, this priceless consultant reinforces what you recognize, teaches you what you don't understand, and offers you the hands-on perform you want to advance your abilities. Written by means of professional Java builders, this e-book is going past mere examination prep with the perception, causes and views that come from years of expertise. You'll evaluation the fundamentals of object-oriented programming, comprehend useful programming, follow your wisdom to database paintings, and lots more and plenty extra. From the fundamental to the complicated, this consultant walks you thru every little thing you must comprehend to hopefully take the OCP 1Z0-809 examination and improve assessments 1Z0-810 and 1Z0-813.
Java eight represents the most important adjustments to the language so far, and the most recent examination now calls for that you just display sensible programming competence in an effort to cross.
This consultant has you coated, with transparent reasons and professional suggestion.
• comprehend summary periods, interfaces, and sophistication layout
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If you're able to take the next move on your IT profession, OCP: Oracle qualified expert Java SE eight Programmer II examine Guide is your perfect spouse at the street to certification.
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starting Android four is an replace to starting Android three, initially written by means of Mark Murphy. it's your first step at the route to growing marketable apps for the burgeoning Android industry, Amazon's Android Appstore, and extra. Google’s Android operating-system has taken the through typhoon, going from its humble beginnings as a phone working approach to its present prestige as a platform for apps that run throughout a gamut of units from telephones to capsules to netbooks to televisions, and the checklist is certain to develop.
clever builders aren't sitting idly through within the stands, yet are leaping into the sport of constructing leading edge and salable purposes for this fast-growing, cellular- and consumer-device platform. If you’re now not within the video game but, now could be your probability!
starting Android four is clean with info at the most up-to-date generation of the Android platform. commence first and foremost by means of fitting the instruments and compiling a skeleton app. go through growing layouts, utilising widgets, taking consumer enter, and giving again effects. quickly you’ll be growing leading edge functions related to multi-touch, multi-tasking, location-based characteristic units utilizing GPS.
You’ll be drawing info stay from the net utilizing net companies and delighting your consumers with life-enhancing apps. no longer because the computing device period first all started has there been this a lot chance for the typical developer. What are you anticipating? seize your replica of starting Android four and start!
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* aid a number of Android types, a number of display sizes, and different device-specific features.
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Who this booklet is for
starting Android four is aimed toward programmers new to Android program improvement who wish to create marketable functions for the burgeoning marketplace of cellphone, capsule, and different Android machine clients.
desk of Contents * the massive photo
* tips on how to start
* Your First Android undertaking
* analyzing Your First undertaking
* a section approximately Eclipse
* improving Your First undertaking
* Rewriting Your First undertaking
* utilizing XML-Based Layouts
* utilising easy Widgets
* operating with boxes
* The enter process Framework
* utilizing choice Widgets
* Getting Fancy with Lists
* nonetheless extra Widgets and packing containers
* Embedding the WebKit Browser
* making use of Menus
* exhibiting Pop-up Messages
* dealing with job Lifecycle occasions
* dealing with Rotation
* facing Threads
* developing cause Filters
* Launching actions and Sub-Activities
* operating with assets
* Defining and utilizing kinds
* dealing with a number of monitor Sizes
* Introducing the Honeycomb UI
* utilizing the motion Bar
* Fragments
* dealing with Platform alterations
* having access to documents
* utilizing personal tastes
* dealing with and getting access to neighborhood Databases
* Leveraging Java Libraries
* speaking through the web
* companies: the speculation
* simple provider styles
* Alerting clients through Notifications
* inquiring for and Requiring Permissions
* gaining access to Location-Based companies
* Mapping with MapView and MapActivity
* dealing with cellphone Calls
* Fonts
* extra improvement instruments
* The function of different Environments
* HTML5
* PhoneGap
* different substitute Environments
* facing units
* the place can we pass from right here?
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Additional info for OCP: Oracle Certified Professional Java Se 8 Programmer II Study Guide: Exam 1Z0-809
Sample text
The code does not compile. F. An exception is thrown. xlviii Answers to Assessment Test Answers to Assessment Test 1. H. The code compiles without issue, so C, D, E, and F are incorrect. The key to understanding this code is to notice that our thread pool size is only 2, but our CyclicBarrier limit is 3. Even though 12 tasks are all successfully submitted to the thread executor service by way of the stream forEach() method, the first two tasks will use up both available threads and wait indefinitely.
Line 14 returns true because hippo is an instance of its superclass. Line 15 returns false because hippo is not an Elephant. The variable reference is HeavyAnimal, so there could be an Elephant in there. At runtime, Java knows that the variable is in fact pointing to a Hippo. All Java classes inherit from Object, which means that x instanceof Object is usually true, except for one case where it is false. If the literal null or a variable reference pointing to null is used to check instanceof, the result is false.
The code does not compile. 14. How many compilation issues are in the following code? close(); } } } A. 0 B. 1 C. 2 D. 3 E. 4 F. 5 15. What is the result of the following code? println(animals[1]); } } A. CHIPMUNK B. SQUIRREL C. The code compiles, but the output is indeterminate. D. A compiler error occurs on line 2. E. A compiler error occurs on line 6. F. A compiler error occurs on line 7. 16. Which of the answer choices is printed out by the following code? println(b1 + " " + b2); A. false false B.