String MCQ with Answers PDF Download – Test 64

MCQ 316: The statement for correctly copying the contents of one string into another is:

1. String s1 = "String"; String s2; s2 = s1;
2. String s1 = "String" ; String s2; s2 = String.Concat(s1, s2);
3. String s1 = "String"; String s2; s2 = String.Copy(s1);
4. String s1 = "String"; String s2; s2 = s1.Replace();

MCQ 317: The type of conversions that the C# compiler does itself and the type of conversions that user has to perform by using predefined functions are:

1. Implicit ,Explicit
2. Explicit, Implicit
3. External, Internal
4. Internal, External

MCQ 318: Choose the statement which differentiates delegates in C# different from a normal class:

1. Delegates in C#.NET is a base class for all delegates type
2. Delegates created in C#.NET are further not allowed to derive from the delegate types that are creat
3. Only system and compilers can derive explicitly from the Delegate or MulticastDelegate class
4. All of the above

MCQ 319: The object oriented way to handle run time errors is:

1. Error codes
2. HERRESULT
3. OnError
4. exceptions

MCQ 320: What is the output of the following code
static void Main(string[] args) { int myInteger; string myString; myInteger = 17; myString = "\"myInteger\" is"; Console.WriteLine("{0} {1}.", myString, myInteger); Console.ReadKey();} :

1. My integer is 17
2. "myInteger" is 17.
3. Errors due to wring memory allocation
4. 0,1 "myInteger"is 17.