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Wednesday, 27 June 2012
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usage of instance, class and reference variables in C#.Net
Usage of instance,class and reference variables in C#.Net
The following example demonstrate the usage of instance , class
and reference variables.
using System;
class Dept
{
int deptno;
public void
setDeptNo(int dno) {deptno=dno;}
}
class Employees
{
int empno; ...
COM INTEROPERABILITY in .Net
COM Interoperabillity
•COM à Reusable
•COM à written in one language (c++) and
consumed by other language (VB)
•COM has Metadata : stores
all info stored inside type library like name, Id of interface, methods and argumetns.
•COM is Not Extensible à drawback
•COM
Issues
–METADATA à
Type Library – TLB
–FREEING
MEMORY ...
C# Generics Introduction & Interview Questions
C# Generics Introduction
•Generics
are similar to C++ templates
•Generics
offers performance and type safety
•Generics
for defining placeholders (type parameters) for method arguments and type
definitions, which are specified at the time of invoking the generic method or
creating the generic type.
•Boxing
and unboxing is under the control of CLR
which is implemented at runtime which is overhead ...
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