Titlebook: Learn Java for Android Development; Migrating Java SE Pr Peter Späth,Jeff Friesen Book 2020Latest edition Peter Sp�th and Jeff Friesen 2020

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Exploring the Basic APIs, Part 1,The standard class library’s . and other packages provide many basic APIs that can benefit your Android apps. For example, you can perform mathematics operations and manipulate strings.

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MULTI

Exploring the Concurrency Utilities,Chapter . introduced Java’s Threads API. Significant problems with Threads resulted in the development of the more powerful Concurrency Utilities framework. In this chapter, we take you on a tour of this framework from Android’s perspective.

ABOUT

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Migrating to New I/O,Chapters . and . introduced you to Java’s classic I/O APIs. Chapter . presented classic I/O in terms of .’s ., ., stream, and writer/reader types. Chapter . presented classic I/O in terms of .’s socket and URL types.

SPECT

Accessing Databases,Applications often need to access databases to store and retrieve various kinds of data. A . (.) is an organized collection of data. Although there are many kinds of databases (such as hierarchical, object-oriented, and relational), ., which organize data into tables that can be related to each other, are common.

紧张过度

Working with XML and JSON Documents,Applications commonly use XML and JSON documents to store and exchange data. In Chapter ., we introduce XML and JSON for the benefit of those who are unfamiliar with these technologies.

GRATE

Date and Time,Handling dates and times in a computer system is a considerably big challenge. We need to take care of different calendar systems, different time zones, daylight saving switches, and language- and country-dependent date and time formatting.

CANDY

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