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ODAIYAPPA COLLEGE OF ENGINEERING & TECHNOLOGY
P.T.R PalanivelRajanNagar , Theni-625531.
DEPARTMENT OF INFORMATION TECHNOLOGY
Sub.Name: CS1013/C# and .Net ANSWER Total Mark: 50
Staff.Name: S.Oyyathevan M.E, UNIT-I (2011) Class/Sem:IT/VII
PART-A (10X2=20)
1. State 5 important highlights of C# language.1. It is a brand
new language derived from the c/c++ family.
2. It Simplifies and modernizes c++.
3. It is a concise, lean and modern language.
4. It is intrinsically objet oriented and web enable.
5. It is the only language designed for the .NET framework.
2. How is C# better than java?1. Java uses static final to
declare the class constant while C# uses const.
2.C# supports the struct type and java does not.
3.C# provides better versioning support then java.
4.C# includes native supports for properties, java does not.
5. Arrays are declared differently in C#.
3. Why C# called TYPE_SAFE language?C# does not permit unsafe
cast. C# enforces overflow checking in
arithmetic operations. C# supports automatic, garbage
collection. Reference
parameters that are passed are type safe. Arrays are initialized
to zero.
Produces error message when the array goes out of bands.
4. What is Common Language Runtime (CLR)?The Common Language
Runtime, popularly known as CLR is the heart
and soul of the .NET framework. It is a runtime environment in
which programs
written in .NET languages(C#, VB.NET, etc.) are executed. It
also supports
cross language interoperability.
5. What is managed code?The code that satisfies the CLR at
runtime in order to execute is
referred to as managed code. Compilers that are compatible to
the .NET
platform generate managed code.
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6. What is the importance of the main method in a C#
program?Every C# executable programs must include the MAIN() method
in
one of the classes. This is the starting point for executing the
program. A C#
application can have any number of classes but only one class
can have the
MAIN() method to initiate the execution.
Example: public static void Main()
7. Describe the difference between the styles of comments used
in C#C# permits two types of commands, namely,
1. Single- line comments.2. Multiline comments.
Single-line comments begin with a double backslash(//)
symbol
and terminate at the end of the line.
Example: // main methods begins
The multiple comment starts with the /* characters and
terminates with */
Example: /*
This program uses namespaces and comment lines
*/
8. List the 2 predefined reference type.1. Object type
2. String type
9. If a=10, b=15, then the statement x = (a>b)?a: b. what is
the value of x?1.Check the conditions x=a>b.2.If the condition
is true x is assigned to a=10.3.If the condition is false x is
assigned to b.
a=10, b=15 the condition is false, so x=15.
10.What is mean by method overloading?C# allows as to create
more than one method with the same
name, but with the different parameter list and different
definition. This is
called method overloading.
