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C# Programming - Collection Classes

Exercise : Collection Classes - General Questions
  • Collection Classes - General Questions
11.
Suppose value of the Capacity property of ArrayList Collection is set to 4. What will be the capacity of the Collection on adding fifth element to it?
4
8
16
32
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Which of the following is an ordered collection class?
  1. Map
  2. Stack
  3. Queue
  4. BitArray
  5. HashTable
1 only
2 and 3 only
4 and 5 only
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following is the correct way to find out the number of elements currently present in an ArrayList Collection called arr?
arr.Count
arr.GrowSize
arr.MaxIndex
arr.Capacity
arr.UpperBound
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
Which of the following statements are correct about a HashTable collection?
  1. It is a keyed collection.
  2. It is a ordered collection.
  3. It is an indexed collection.
  4. It implements a IDictionaryEnumerator interface in its inner class.
  5. The key - value pairs present in a HashTable can be accessed using the Keys and Values properties of the inner class that implements the IDictionaryEnumerator interface.
1 and 2 only
1, 2 and 3 only
4 and 5 only
1, 4 and 5 only
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Which of the following is the correct way to access all elements of the Stack collection created using the C#.NET code snippet given below? 
Stack st = new Stack();
st.Push(11);
st.Push(22);
st.Push(-53);
st.Push(33);
st.Push(66);
IEnumerable e;
e = st.GetEnumerator(); 
while (e.MoveNext())
Console.WriteLine(e.Current);
IEnumerator e;
e = st.GetEnumerable(); 
while (e.MoveNext())
Console.WriteLine(e.Current);
IEnumerator e;
e = st.GetEnumerator(); 
while (e.MoveNext()) 
Console.WriteLine(e.Current);
IEnumerator e;
e = Stack.GetEnumerator(); 
while (e.MoveNext()) 
Console.WriteLine(e.Current);
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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