Points to remember:
·
Abstract Data type (ADT) is a type (or class) for objects whose
behavior is defined by a set of value and a set of operations.
·
The definition of ADT only mentions what operations are to be
performed but not how these operations will be implemented.
·
ADT does not specify how data will be organized in memory and what
algorithms will be used for implementing the operations
·
Constructors are functions that build the abstract data type.
·
Selectors are functions that retrieve information from the data
type.
·
Concrete data types or structures (CDT's) are direct
implementations of a relatively simple concept.
·
Abstract Data Types (ADT's) offer a high level view (and use) of a
concept independent of its implementation.
·
A concrete data type is a data type whose representation is known
and in abstract data type the representation of a data type is unknown
·
Pair is a compound structure which is made up of list or Tuple
·
List in is constructed by placing expressions within square
brackets separated by commas
·
The elements of a list can be accessed in two ways. The first way
is via multiple assignment and the second method is by the element selection
operator
·
Bundling two values together into one can be considered as a pair
·
List does not allow to name the various parts of a multi-item
object.
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