MCQ2

class Program{

static void Main(string[] args) {

int result; int i;

for(i=-2;i<2;i++) {

result = i!=0?100/i:0;

Console.WriteLine("100/" + i + "is" + result);

Console.Read();

} } }

• 100/-2is-50

  100/-1is-100

  100/1is100

• 100/-2is-50

  100/-1is100

  100/1is100

• It causes an exception

• 100/-2is-50

  100/-1is-100

  100/0is0

  100/1is100

The class Test1 inherits from class Test. An instance of Test1 is created and referenced in variable T1 using the following code: Test1 T1= new Test();

A variable called C1 of type Test is declared and T1 is a cast as type Test and assigned to C1 using the following code

Test C1 = (Test) T1

Which is the alternative syntax for the code above?

• Test C1 = Test as Test1

• Test C1 = T1 as Test1

• Test(Test1) C1 = T1

• Test C1 = (Test1 as Test) T1

Which of the following is statement is correct about constructor in C#.Net

• A constructor cannot be declared as private

• A constructor cannot be overloaded

• A constructor can be static constructor

• none of these

What happens when an exception object is not caught and handled properly?

• The control goes to default exception handler

• The compiler will not terminate the program

• The compiler will terminate the program

• None of the above

Can an object of child type be assigned to variable of parent?

for example

card crd;

Birthday bd = new Birthday('Luci",42);

crd=bd;

• No, there must be always be an exact match between the variable and object type

• No, but a object of parent type can be assigned to variable of child

• Yes an object can be assigned to a reference variable of parent

• Yes, any object can be assigned to any reference variable

What is the output of the following program

• 1,5

• 0,5

• 1,0

• 3,0

what is the output of the program

• second method

  20

  second method

  first method

• second method

  20

  first method

  second method

• first method

  20

• second method

  20

  first method

select the correct option

• By placing the statement " throw new DivideByZeroException():" in try block

• By placing the statement " throw DivideByZeroException():" in try block

• By placing throw in try block

• By placing throw in catch block

can the method add() be overloaded in the following way in c#?

public int add() { }

public float add() { }

• true

• false

What is the output of the following

• s1= 123 s2=abc

• s1=

  s2=abc

• s1=abc s2=abc

• An exception is raised