C # MCQ Questions with answers and solutions Page 1

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Q. How many Bytes are stored by ‘Long’ Data type in C# .net?

(A) 8

(B) 4

(C) 2

(D) 1

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Q. Choose “.NET class” name from which data type “UInt” is derived?

(A) System.Int16

(B) System.UInt32

(C) System.UInt64

(D) System.UInt16

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Q. Correct Declaration of Values to variables ‘a’ and ‘b’?

(A) int a = 32, b = 40.6;

(B) int a = 42; b = 40;

(C) int a = 32; int b = 40;

(D) int a = b = 42;

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Q. What will be the error in the following C# code?

Code:

Static Void Main(String[] args)
 {
     const int m = 100;
     int n = 10;
     const int k = n / 5 * 100 * n ;
     Console.WriteLine(m * k);
     Console.ReadLine();
 }

(A) ‘k’ should not be declared constant

(B) Expression assigned to ‘k’ should be constant in nature

(C) Expression (m * k) is invalid

(D) ‘m ‘ is declared in invalid format

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Q. Arrange the following data type in order of increasing magnitude sbyte, short, long, int.

(A) long < short < int < sbyte

(B) sbyte < short < int < long

(C) short < sbyte < int < long

(D) short < int < sbyte < long

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Q. Which data type should be more preferred for storing a simple number like 35 to improve execution speed of a program?

(A) sbyte

(B) short

(C) int

(D) long

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Q. Which Conversion function of ‘Convert.TOInt32()’ and ‘Int32.Parse()’ is efficient?
i) Int32.Parse() is only used for strings and throws argument exception for null string
ii) Convert.Int32() used for data types and returns directly '0' for null string

(A) ii

(B) Both i, ii

(C) i

(D) None of the mentioned

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Q. Correct way to assign values to variable ‘c’ when int a=12, float b=3.5, int c;

(A) c = a + b;

(B) c = a + int(float(b));

(C) c = a + convert.ToInt32(b);

(D) c = int(a + b);

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C # MCQs with answers Page - 1

Q. How many Bytes are stored by ‘Long’ Data type in C# .net?

Q. Choose “.NET class” name from which data type “UInt” is derived?

Q. Correct Declaration of Values to variables ‘a’ and ‘b’?

Q. What will be the error in the following C# code?

Q. Arrange the following data type in order of increasing magnitude sbyte, short, long, int.

Q. Which data type should be more preferred for storing a simple number like 35 to improve execution speed of a program?

Q. Which Conversion function of ‘Convert.TOInt32()’ and ‘Int32.Parse()’ is efficient? i) Int32.Parse() is only used for strings and throws argument exception for null string ii) Convert.Int32() used for data types and returns directly '0' for null string

Q. Correct way to assign values to variable ‘c’ when int a=12, float b=3.5, int c;

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C # MCQs with answers Page - 1

Q. How many Bytes are stored by ‘Long’ Data type in C# .net?

Q. Choose “.NET class” name from which data type “UInt” is derived?

Q. Correct Declaration of Values to variables ‘a’ and ‘b’?

Q. What will be the error in the following C# code?

Q. Arrange the following data type in order of increasing magnitude sbyte, short, long, int.

Q. Which data type should be more preferred for storing a simple number like 35 to improve execution speed of a program?

Q. Which Conversion function of ‘Convert.TOInt32()’ and ‘Int32.Parse()’ is efficient? i) Int32.Parse() is only used for strings and throws argument exception for null string ii) Convert.Int32() used for data types and returns directly '0' for null string

Q. Correct way to assign values to variable ‘c’ when int a=12, float b=3.5, int c;

More Programming Languages

Menu

Login

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Follow Us

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Features at Glance

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