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• The classes that can be declared within another class's scope are KNOWN as NESTED classes. These classes are included in the contained class's scope and are available inside that class's scope.
• A value type containing a SET of constants given to the set of the LIST is known as an Enumerator or Enum. When more than one number needs to be defined, enumeration is UTILISED.

An assembly manifest is a TEXT file in the.NET FRAMEWORK that contains metadata about the code in a CLI assembly. It describes the components' relationships and dependencies, as well as the assembly's versioning information, SCOPE information, and security permissions. The Manifest file type can be saved as a PE file type. As a Manifest, you can save the Assembly Name, Version, CULTURE, and key token.

Globalization is essentially the process of adapting your application to different cultures. You must recognise that your application's USERS may speak a different language than you and that their language, in addition to being a different language, follows different rules. Some languages, for example, should be displayed right to left, whereas OTHERS should be displayed left to right. You must now consider not just the various languages, but also the various CURRENCIES, DATE and TIME settings, and the various colours associated with various civilizations. With globalisation, you can make your software accessible to people from all over the world, regardless of their language.

KEYWORDS that are USED to SPECIFY the DECLARED accessibility of a member or a type is known as class ACCESS modifiers. The various types of class access modifiers are as follows:

• Public
• Private
• Protected
• Protected Internal
• Internal

An array of arrays array named scores of Integers is demonstrated in the code below.  is called a Jagged array. Declaring a jagge:

The example code SNIPPET below shows how to use a jagged array:

The OUTPUT of the above code snippet will be as follows:

The ReDim statement is used to resize or enlarge a dynamic array that has already been formally declared with empty parenthesis using a PRIVATE, Public, or Dim declaration (without dimension subscripts). To alter the NUMBER of elements and dimensions in an array, use the ReDim statement repeatedly. However, unless the array is included in a Variant, one can't define an array of one DATA type and then use ReDim to transform it to another data type. If the array is stored in a Variant, the type of the items can be changed with an As type clause, unless the Preserve keyword is used, in which case no data type changes are allowed.

An example of the usage of the ReDim keyword is given below:

The ReDim statement is used in the above example to allocate and reallocate storage space for dynamic array variables in this example. The Option Base is assumed to be 1. The ReDim keyword is only applicable to arrays and is used to modify the size of one or more dimensions of an array that has already been declared. When NEEDED, Redim can FREE up or add elements to an array.

The CONSTRUCTOR is USED along with the NEW keyword. Its usage can be as that of a modifier or an operator. The NEW keyword hides inherited members from BASE class members when used as a modifier. It produces objects for invoking constructors when used as an operator. The NEW keyword creates a new object instance, provides a constructor constraint on a type argument, or designates another function as a class constructor. A New clause can be used in either a declaration or an assignment statement. When you run the statement, it calls the proper constructor of the specified class, passing any parameters you have given it. 

An example of the usage of the NEW keyword is given below:

An access SPECIFIER that will be displayed in a specific assembly, that is, in a DLL (Dynamic Link Library) file, is the INTERNAL keyword. This is visible throughout the assembly as a UNIQUE binary component.

The System.object CLASS is the BASE class of VB.NET.

In GENERAL, .Net allows any data type to be implicitly converted. 

• Option Strict is used to prevent the leakage of data during the conversions of data type, and it GUARANTEES the COMPILE-time notification of certain forms of conversions. 
• Option Explicit is a keyword in a file that is used to exclusively declare each and every variable using declare keywords such as Dim, PRIVATE, Public, and Protected. An error occurs at compile time in the event of an undeclared variable name persisting.

Assemblies are a component of .NET applications and are CONSIDERED to be the main part of all .NET apps. They can be either a DLL (Dynamic Link Library) or an executable file. The two forms of assemblies are as follows:

• Private - Private assemblies are those that are only utilised by one application and are kept in the application's directory.
• Public - Public assemblies, also known as shared assemblies, are saved in the Global Assembly CACHE (GAC), which can be ACCESSED by several programs.

Strong Name is NOTHING but a feature of .Net whose usage lies in uniquely identifying shared assemblies. A strong name is a solution to the problem of several objects with the same name being CREATED, and it may be assigned using Sn.exe.

• Metadata: Metadata is defined as "data on the body of the data" and can be found in library catalogues. In practice, metadata's usage comes in evaluating database data, although it can also be utilised for other purposes.
• Namespace: In the.NET language, namespaces are NOTHING but an organised manner of representing classes, structures, and interfaces. All .NET Languages have access to namespaces, which are hierarchically organised indexes of a class library.
• JIT: It is an ACRONYM for Just in Time compiler, which is a component of the runtime execution environment. JIT is DIVIDED into three categories:
  • Normal JIT: Normal JITs compile called functions or procedures at runtime and compile them for the first time when they are invoked.
  • PRE-JIT: Pre JITs compile an application before it is deployed.
  • Econo-JIT: Econo JITs compile called functions and procedures at runtime.

The System.Data namespace is used to access and manage data from the required data source. This namespace DEALS only with the data from the specified database.

Some benefits of using VB.NET are as follows:

• VB.NET is a modern, general-purpose language.
• It is an object-oriented programming language.
• For a newbie, VB.NET is quite SIMPLE to learn.
• It is a structure-oriented programming language.
• VB.NET can be built on a number of different platforms.
• Conditional Compilation is SUPPORTED by VB.NET.
• VB.NET has a STANDARD Library and Automatic Garbage Collection.
• It has Property and Event support.
• VB.NET AIDS in the management of delegates and events.
• Generics, Indexers, and Simple Multithreading are all supported.