Android Training in Chandigarh (20)

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Android Training in Chandigarh
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Stack class

• The Stack class represents a last-in-first-out
  (LIFO) stack of objects. It extends class Vector
  with five operations that allow a vector to be
  treated as a stack. The usual push and pop
  operations are provided, as well as a method to
  peek at the top item on the stack, a method to
  test for whether the stack is empty, and a method
  to search the stack for an item and discover how
  far it is from the top.

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Android architecture or Android software stack is
categorized into five parts

• linux kernel
• native libraries (middleware),
• Android Runtime
• Application Framework
• Applications

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Linux kernel

• It is the heart of android architecture that
  exists at the root of android architecture. Linux
  kernel is responsible for device drivers, power
  management, memory management, device management
  and resource access.

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Native Libraries

• On the top of linux kernel, their are Native
  libraries such as WebKit, OpenGL, FreeType,
  SQLite, Media, C runtime library (libc) etc.
• The WebKit library is responsible for browser
  support, SQLite is for database, FreeType for
  font support, Media for playing and recording
  audio and video formats.

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Android Runtime

• In android runtime, there are core libraries and
  DVM (Dalvik Virtual Machine) which is responsible
  to run android application. DVM is like JVM but
  it is optimized for mobile devices. It consumes
  less memory and provides fast performance.

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OFFICE SCO 23-24-25, LEVEL-3, near
passport office,
Sector 34A, Chandigarh PHONE
9988741983, 9914641983 Visit
http//cbitss.com/android-training-in-chandigarh.h
tml
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