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Stack class in C#
almost 10 years ago
It represent last in first out type of hierarchy .
It is used when you want to access elements in the LIFO form.
When you add item in the list it is known as pushing the item into the list.
When you delete the item in the list it is know as poping the item from the list.
Properties of Stack class :
Property Description Count Gets the number of elements contained in the Stack. Methods of Stack class:
Sr.No. Methods 1 public virtual void Clear(); Removes all elements from the Stack.
2 public virtual bool Contains(object obj); Determines whether an element is in the Stack.
3 public virtual object Peek(); Returns the object at the top of the Stack without removing it.
4 public virtual object Pop(); Removes and returns the object at the top of the Stack.
5 public virtual void Push(object obj); Inserts an object at the top of the Stack.
6 public virtual object[] ToArray(); Copies the Stack to a new array.
We can insert and delete elements according to our need but the access of elements is on the LIFO principle.
class Program { static void Main(string[] args) { Stack st = new Stack(); st.Push('Himanshu'); st.Push('Dheeraj'); st.Push('Gaurav'); st.Push('Mayank'); Console.WriteLine("Current stack: "); foreach (char c in st) { Console.Write(c + " "); } Console.WriteLine(); st.Push('Vinod'); st.Push('Manoj'); Console.WriteLine("The next poppable value in stack: {0}", st.Peek()); Console.WriteLine("Current stack: "); foreach (char c in st) { Console.Write(c + " "); } Console.WriteLine(); Console.WriteLine("Removing values "); st.Pop(); st.Pop(); st.Pop(); Console.WriteLine("Current stack: "); foreach (char c in st) { Console.Write(c + " "); } } }
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