JNTU
JNTU MCA 2018 ANDROID MOBILE APPLICATION DEVELOPMENT Previous Question Paper (June/July - 2018 - R15)
Note: This question paper contains two parts A and B. Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit.
PART - A
List down the features of SDK.
Answer
The Android Software Development Kit (SDK) provides the following key features: 1. Libraries: A comprehensive set of pre-built Java/Kotlin libraries for UI components, data storage, and networking. 2. Emulator: A virtual mobile device environment to test applications without physical hardware. 3. Debugger: Tools like DDMS and Android Studio Profiler for monitoring performance and fixing errors. 4. Documentation: Extensive API references and developer guides. 5. Build Tools: Utilities like Gradle to compile and package code into APK or AAB files.
Discuss about Radio and Toggle Buttons.
Answer
Radio Buttons are used in a RadioGroup to allow users to select exactly one option from a set. They are mutually exclusive, meaning selecting one automatically deselects any previously selected button in the same group. Toggle Buttons provide a visual state indicator (On/Off) that users can switch between. They are typically used for binary settings, such as enabling Wi-Fi or Bluetooth, and change their appearance based on the checked state.
Define Displaying Toasts.
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With example explain the creation of files.
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Show how to connect to an internet resource.
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PART - B
List and explain about various types of Android applications.
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Draw a neat diagram to explain Android Application Lifecycle.
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Describe in detail about interfacing between fragments and Activities.
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Discuss in detail about various Editable and non-editable Text View.
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Give an example to explain the process of passing data to Intents.
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Explain the concept of using intents to launch Activities.
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With an example explain how to create and open a database using SQLite.
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Describe the concept of saving and retrieving data using Shared Preference.
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Explain the process of Finding Current Location and showing location on the Map.
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Give the steps involved in updating the location in android application development.
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