Section 1
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The .NET Framework
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Last updated
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Date created
Mar 1, 2020
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Section 1
(50 cards)
The .NET Framework
uses namespaces to organize all of its classes and provides a large collection of classes that you can use in your code and benefit from the predefined functionality.
convention to name private data fields
is to begin each name with a lowercase letter.
The get accessor
used to return the property value.
public
access modifier where access is not restricted.
class
template from which individual objects are created.
System.Text
Contains classes for text encoding and string operations.
The Object class
the ultimate base class of all the classes in the .NET Framework.
private
access modifier where access is restricted to the containing class.
A property
a block of code that allows you to access a class data field in a safe and flexible way.
Access modifiers
control where a type or type member can be used.
the as operator
similar to the cast operation, but in the case of __, if the type conversion is not possible, null is returned instead of raising an exception.
An assembly
a unit of executable code that can be independently versioned and installed.
Polymorphism
the ability of the derived classes to share common functionality with the base classes but still define their own unique behavior.
System.Data
namespace that contains classes for accessing and managing data
System.Xml
Contains classes for processing XML
Encapsulation
an information-hiding mechanism that makes code easy to maintain and understand.
The override keyword
replaces a base class member in a derived class.
Object-oriented programmin
programming technique that makes use of objects.
System Namespace
namespace that contains fundamental classes and base classes that define most common functionality
The IComparable interface
has a single method that accepts an object and returns an int. The return value of this method indicates the result of comparing the given parameter with the current object.
constructor
a block of code used to initialize the data members of the object.
Objects
self-contained data structures that consist of properties, methods, and events.
Auto implemented properties
enable you to quickly specify a property of a class without having to write code to Get and Set the property.
the is operator
To avoid runtime errors, such as the InvalidCastException, the __ operator can be used to check if the cast is allowed before actually performing the cast:
The set accessor
used to assign a new value to the property.
Inheritance
OOP technique that enables you to create new classes that reuse, extend, and modify the functionality defined in existing classes.
The new keyword
creates a new member with the same name in the derived class and hides the base class implementation.
Namespace
a language element that allows you to organize code and create globally unique class names.
System.IO
namespace that contains classes that provide functionality for input and output
casting.
the process for when the runtime allows you to convert an object to any of its base types.
base class.
the class whose functionality is inherited is a
internal
Access is restricted to the code in the same assembly.
Methods
specify an object's behavior.
An interface
used to establish contracts through which the objects interact with each other without knowing the implementation details.
System.Windows
Contains classes that help you build Windows applications
protected
access modifier where access is restricted to the containing class and to any class that is derived directly or indirectly from the containing class. You'll learn more about the derived classes in the section, "Understanding Inheritance" later in this lesson.
protected internal
In this access modifier,access is restricted to any code in the same assembly and only to derived classes in another assembly.
method
a block of code containing a series of statements that can be called from elsewhere in a program. specify an object's behavior.
access modifier
specifies what region of the code will have access to a field or method.
A property
often defined as public and by convention (it always has a name that begins with a capital letter).
System.Web
namespace that Contains classes that help you build Web applications
Events
provide communication between the objects.
Static members
belong to the class itself rather than individual objects.
A method is declared by specifying :
the access level, the return type, the name of the method, parentheses which may contain an optional list of parameters followed by a block of code enclosed in braces.
derived class
The class that inherits functionality is a
Properties
specify the data represented by the object
An object
is created from the templates defined by classes.
The this keyword
can be used to access members from within constructors, instance methods, and the accessors of instance properties.
System.ServiceModel
namespace that contains classes that help you build Windows Communication Foundation (WCF) applications
accessors of a property
contain the code associated with reading for writing the property value.
Section 2
(18 cards)