Basic Syntax And Data Types In C Sharp — Part 2 MCQs with Explanations

ii is the correct answer to “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”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Conversion is explicit type is the correct answer to “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(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

const float pi = 6.28F is the correct answer to “Correct way to define a value 6.28 in a variable 'pi' where value cannot be modified”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

c = a + convert.ToInt32(b) is the correct answer to “Correct way to assign values to variable 'c' when int a=12, float b=3.5, int c;”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

a string created on heap is the correct answer to “Correct statement about strings are”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

546, 70 is the correct answer to “What will be the output of the following C# code? public static void Main(string[] args) { int i = 546; object o = i; int n =(int) o; o = 70; System. Console. WriteLine("The value-type value = {0}", n); System. Console. WriteLine("The object-type value = {0}", o); Console. ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

23 is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { float a = 10.553f; long b = 12L; int c; c = Convert.ToInt32(a + b); Console.WriteLine(c); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

char < int < float is the correct answer to “'Implicit Conversion' follows the order of conversion as per compatibility of data type as:”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

DelhiJaipur is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { string s1 = "Delhi"; string s2; s2 = s1.Insert (6, "Jaipur"); Console.WriteLine(s2); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Monday Tuesday Wednesday Friday Saturday is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { { var dayCode = "MTWFS"; var daysArray = new List<string>(); var list = new Dictionary<string, string> { {"M", "Monday"}, {"T", "Tuesday"}, {"W", "Wednesday"}, {"R", "Thursday"}, {"F", "Friday"}, {"S", "Saturday"}, {"U", "Sunday"} }; for (int i = 0,max = dayCode.Length; i < max; i++) { var tmp = dayCode[i].ToString(); if (list.ContainsKey(tmp)) { daysArray.Add(list[tmp]); } } Console.WriteLine(string.Join("\n ", daysArray)); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

m = static variable, n = instance variable, x = value parameter, y = reference parameter, j = local variable, z = output parameter , a[0] = array element is the correct answer to “Choose the correct type of variable scope for the following C# defined variables. class ABC { static int m; int n; void fun (int x , ref int y, out int z, int[] a) { int j = 10; } }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Compare() is the correct answer to “Which is the String method used to compare two strings with each other”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

int a = 32; int b = 40 is the correct answer to “Correct Declaration of Values to variables 'a' and 'b'”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

16 bit is the correct answer to “What is the Size of 'Char' datatype”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

0.4000001 is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { int x = 1; float y = 2. 4f; short z = 1; Console. WriteLine((float) x + y * z - (x + = (short) y) ); Console. ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Mantissa is different for '16777216' and '16777217' is the correct answer to “Why does a float variable stop incrementing at number '16777216' in the following C# code? float a = 0 ; while (true) { a++; if (a > 16777216) break; }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

No ease of doing it. C# don't provides specifier like %x or %O to be used with ReadLine() OR WriteLine(). We have to write our own function is the correct answer to “Which of the following format specifiers is used to print hexadecimal values and return value of output as Octal equivalent in C#”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

8 is the correct answer to “How many Bytes are stored by 'Long' Data type in C# .net”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

All of the mentioned is the correct answer to “Verbatim string literal is better used for”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

2.928 is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { float sum; int i; sum = 0.0F; for (i = 1; i <= 10; i++) { sum = sum + 1 /(float)i; } Console.WriteLine("sum =" +sum); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Explicit Conversion is the correct answer to “Types of 'Data Conversion' in C#”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

-6, 11 is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { int a = 5; int b = 10; int c; Console.WriteLine(c = a-- - ++b); Console.WriteLine(b); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

YABMOB is the correct answer to “What will be the output of the following C# string? (Enter a String : BOMBAY). static void Main(string[] args) { string Str, Revstr = " "; int Length; Console.Write("Enter A String : "); Str = Console.ReadLine(); Length = Str.Length - 1; while (Length >= 0) { Revstr = Revstr + Str[Length]; Length --; } Console.WriteLine("Reverse String Is {0}", Revstr); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Both (1) and (2) are equivalents is the correct answer to “The following C# codes are? 1. Myclass class; Myclass class2 = null; 2. int i; int j = 0;”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

4 Bytes is the correct answer to “Valid Size of float data type is”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

False is the correct answer to “The Default value of Boolean Data Type is”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

BEST is the correct answer to “What will be the output of the following C# code? string s1 = " I AM BEST "; string s2; s2 = s1.substring (5, 4); Console.WriteLine (s2);”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

To prevent situations of runtime error during change or conversion of data type is the correct answer to “What is the need for 'Conversion of data type' in C#”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

i is the correct answer to “Scope of variable is related to definition of variable as: i. Region of code within which variable value is valid and hence can be accessed. ii. No, relation with region where variable is declared its value is valid in entire scope.”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

0, 1, 2, 3, 4, 5 is the correct answer to “What will be the output of the following C# code? class Program { static void Main(string[] args) { int i ; for ( i = 0; i < 5; i++) { int j = 0; j += i; Console. WriteLine(j); } Console. WriteLine(i); Console. ReadLine(); } }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

I am a human being is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { char c = 'g'; string s = c.ToString(); string s1 = "I am a human being" + c; Console.WriteLine(s1); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

All of the mentioned is the correct answer to “DIFFERENCE BETWEEN KEYWORDS 'VAR' AND 'DYNAMIC'”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

c = a, b = c is the correct answer to “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; }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

ii, iii is the correct answer to “Select differences between reference type and value type: i. Memory allocated to 'Value type' is from heap and reference type is from 'System. ValueType' ii. Memory allocated to 'Value type' is from 'System. ValueType' and reference type is from 'Heap' iii. Structures, enumerated types derived from 'System. ValueType' are created on stack, hence known as ValueType and all 'classes' are reference type because values are stored on heap”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Compile time error is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { const int a = 5; const int b = 6; for (int i = 1; i <= 5; i++) { a = a * i; b = b * i; } Console.WriteLine(a); Console.WriteLine(b); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Depends on big endian or little endian architecture is the correct answer to “A float occupies 4 bytes. If the hexadecimal equivalent of these 4 bytes are A, B, C and D, then when this float is stored in memory in which of the following order do these bytes gets stored”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Int is the correct answer to “Default Type of number without decimal is”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

.dnuorg a ni gniyalp si eH is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { string Name = "He is playing in a ground."; char[] characters = Name.ToCharArray(); StringBuilder sb = new StringBuilder(); for (int i = Name.Length - 1; i >= 0; --i) { sb.Append(characters[i]); } Console.Write(sb.ToString()); Console.ReadLine(); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Good Morning Dr.Gupta is the correct answer to “What will be the output of the following C# code? static void Main(string[] args) { String name = "Dr.Gupta"; Console.WriteLine("Good Morning" + name); }”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.

Results in loss of data is the correct answer to “Disadvantages of Explicit Conversion are”. This question is standard in competitive examination syllabi for Basic Syntax And Data Types In C Sharp.