Technology Questions

Pseudo elements allow the use of the part of element and not the element itself. They are applied to block level element, which is used for the complete block for which the CSS is being written. This allow the subpart of an element to be styled like paragraphs and headings. For example:

selector:pseudo-element {property:value;}

p: first-line {text-transform: lowercase;}

It adds the style to the first line of the code in the paragraph.

Research in Motion, a Canadian company provided a proprietary operating system for BlackBerry.

The operating system provides support for Java MIDP 1.0 and WAP 1.2.

The current version supports Novell Group Wise and Lotus Notes.

Third-party software can be developed using BlackBerry APIs as well, with certain restriction functionality must be signed by RIM digitally, so that it can be associated to a developer account. 

Android uses Dalvik Virtual Machine (DVM) which requires a special bytecode. We need to convert Java class files into Dalvik Executable files using an Android tool called "dx". In normal circumstances, developers will not be using this tool directly and build tools will care for the generation of DVM compatible files.

- The Dictionary class is an abstract class.

- Classes like Hashtable which map keys to values inherit from this class. 

- An object can be looked for if a dictionary and a key is provided.

- Any non-null object can be used as a key and as a value.

Basically website is an information provider, It provides information globally using internet protocols.

XML, Extensible Markup Language, is an open, text based markup language that provides structural and semantic information to data. XML is a metalanguage that can be used to create other language. It is used to structure and describe data that can be understood by other applications. Using XML, we can separate the user interface from data.

Features of XML :

- XML is a generalized markup language that means one can define his/her own tag sets.

- A valid XML document contains rules and is self-describing.

- The rules that are found in DTD allow the documents to be validated.

FIND_GROUP(function) FIND_COLUMN(function)

The JVM performs three main tasks:

• Loads code

• Verifies code

• Executes code