Understanding Java SE
The Android development environment is essentially a combination of Java and XML. The Android SDK includes a runtime that translates the Java and XML code into a language that the operating system and the individual device can understand.
XML stands for eXtensible Markup Language, and it is very similar to the HTML (HyperText Markup Language) that is used for web site design. In fact, HTML is a subset or implementation of XML. XML is designed to structure data for items that require a predefined data structure, and to define constructs so that the user does not need to create them in more complex Java code. If you have done any work in HTML, you will see a familiar sight in XML, known as tags. These tags are bracketed by ...
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