generics c programming questions

1.

Which one of the following classes are present System.Collections.Generic namespace?

Stack
Tree
SortedDictionary
SortedArray

A.     1 and 2 only
B.     2 and 4 only
C.     1 and 3 only
D.     All of the above
E.     None of the above
Answer & Explanation

Answer: Option C

Explanation:

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2.

For the code snippet shown below, which of the following statements are valid?

public class Generic<T>
{
public T Field;
public void TestSub()
{
T i = Field + 1;
}
}
class MyProgram
{
static void Main(string[] args)
{
Generic<int> gen = new Generic<int>();
gen.TestSub();
}
}

A.     Addition will produce result 1.
B.     Result of addition is system-dependent.
C.     Program will generate run-time exception.
D.     Compiler will report an error: Operator ‘+’ is not defined for types T and int.
E.     None of the above.
Answer & Explanation

Answer: Option D

Explanation:

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3.

Which of the following statements are valid about generics in .NET Framework?

Generics is a language feature.
We can create a generic class, however, we cannot create a generic interface in C#.NET.
Generics delegates are not allowed in C#.NET.
Generics are useful in collection classes in .NET framework.
None of the above

A.     1 and 2 Only
B.     1, 2 and 3 Only
C.     1 and 4 Only
D.     All of the above
E.     None of the above
Answer & Explanation

Answer: Option C

Explanation:

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4.

Which of the following statements is valid about generic procedures in C#.NET?
A.     All procedures in a Generic class are generic.
B.     Only those procedures labeled as Generic are generic.
C.     Generic procedures can take at the most one generic parameter.
D.     Generic procedures must take at least one type parameter.
E.     None of the above.
Answer & Explanation

Answer: Option D

Explanation:

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5.

For the code snippet shown below, which of the following statements are valid?

public class TestIndiaBix
{
public void TestSub<M> (M arg)
{
Console.Write(arg);
}
}
class MyProgram
{
static void Main(string[] args)
{
TestIndiaBix bix = new TestIndiaBix();
bix.TestSub(“IndiaBIX “);
bix.TestSub(4.2f);
}
}

A.     Program will compile and on execution will print: IndiaBIX 4.2
B.     A non generic class Hello cannot have generic subroutine.
C.     Compiler will generate an error.
D.     Program will generate a run-time exception.
E.     None of the above.
Answer & Explanation

Answer: Option A

Explanation:

No answer description available for this question.

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