Defensive Programming in Android: Network Access and Java Defensive Techniques

Overview/Description
Target Audience
Prerequisites
Expected Duration
Lesson Objectives
Course Number
Expertise Level

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Overview/Description
Defensive Programming in Android uses coding practices and techniques to create apps that are reliable and resilient. This course will teach you some language-specific Java techniques that promote defensive programming when creating Android apps, as well as how to access the network in Android apps in a way that does not affect user experience.

Target Audience
Android developers who have experience creating apps using Java, and who want to employ defensive programming techniques

Prerequisites
None

Expected Duration (hours)
1.6

Lesson Objectives

Defensive Programming in Android: Network Access and Java Defensive Techniques

start the course

initialize instances of classes safely

check for the presence of null to avoid errors

design setters to avoid potential errors

recognize how to compare two objects in Java avoiding potential errors

work safely with the Java switch and case statements

use atomic and nonatomic operations in threaded applications

use final properties to minimize potential for errors

recognize when to use mutable and immutable classes

implement a basic enum in Java

use enums to reduce the possibility of unexpected input

implement an enum with a constructor and recognize the rules for enum constructors

implement an interface in an enum

create an enum with abstract methods

use packages and classes to implement proper encapsulation

import packages in Java Android apps

use different scopes to implement defensive programming

create APKs to run on Android devices

create jars for exporting Java code between apps

recognize the importance of maintaining a good user experience while accessing the network

use AsyncTask to retrieve data asynchronously and preserve user experience

use progress reporting to enhance user experience

cache retrieved data to enhance user experience

transfer large files in the background

check network connectivity status in Android apps

sanitize data transferred across the network

create an Android app to access the network asynchronously

Course Number:
sd_dpfa_a04_it_enus

Expertise Level
Intermediate