gs gs108 Data Types, Variables and Operators - Type Conversion in Expressions - Quiz No.1
gs gs108 CSharp Quiz
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Question 1: What is the need for ‘Conversion of data type’ in C#?
To store a value of one data type into a variable of another data type
To get desired data
To prevent situations of runtime error during change or conversion of data type
None of the mentioned
Question 2: Types of ‘Data Conversion’ in C#?
Implicit Conversion
Explicit Conversion
Implicit Conversion and Explicit Conversion
None of the mentioned
Question 3: ‘Implicit Conversion’ follows the order of conversion as per compatibility of data type as:
float < char < int
char < int < float
int < char < float
float < int < char
Question 4: For the following C# code select the relevant solution for conversion of data type.
static void Main(string[] args) { int num1 = 20000; int num2 = 50000; long total; total = num1 + num2; Console.WriteLine("Total is : " +total); Console.ReadLine(); }
Compiler will generate runtime error
Conversion is implicit type, no error generation
Specifying data type for conversion externally will solve the problem
None of the mentioned
Question 5: The subset of ‘int’ data type is __________
long, ulong, ushort
long, ulong, uint
long, float, double
long, float, ushort
Question 6: Type of Conversion in which compiler is unable to convert the data type implicitly is?
ushort to long
int to uint
ushort to long
byte to decimal
Question 7: Disadvantages of Explicit Conversion are?
Makes program memory heavier
Results in loss of data
Potentially Unsafe
None of the mentioned
Question 8: For the given set of C# code, is conversion possible?
static void Main(string[] args) { int a = 76; char b; b = (char)a; Console.WriteLine(b); Console.ReadLine(); }
Compiler will generate runtime error
Conversion is explicit type
Compiler will urge for conversion from ‘integer’ to ‘character’ data type
None of the mentioned
Question 10: Which of the conversions are valid for the following C# code?
static void Main(string[] args) { int a = 22; long b = 44; double c = 1.406; b = a; c = a; a = b; b = c; }
c = a, b = c
a = c, b = a
b = a, c = a
All of the mentioned
