Introduction Flex UI Framework

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the open source Flex 4.5 Framework provides

1. Rich & extended set of controls / component library 
2. Complete set of layout mechanisms.
3. Mobile-optimized components
4. Containers
5. MXML declarative language for layouting UI components & ActionScript an ECMA compliant scripting languages for writing business logic.
6. Rich class library based on ActionScript 3.0

Layout Mechanism functions
- controls look and feel
- helps in management of display area during window resizing.

Containers hold other containers and components, container lays out its children

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