The item at the top of the stack is

Program 1
Create a C# application for an integer stack. The program has the following
GUI:

There are three buttons (Push, Pop and Clear) and one textbox. Whenever
the user clicks the Push button, add a random integer at the top of the stack.
This random integer can be as small as 0 and as large as 99. Whenever the
user clicks the Pop button, pop the stack (i.e. remove the item at the top) if
the stack is not empty. Whenever the user clicks the Clear button, remove
all items from the stack.
The textbox always displays the content of the stack. When the program
begins to run, the textbox is empty because the stack is empty. Every time
the user clicks the Push, Pop or Clear button, update the content of the
textbox accordingly.
The following is an example.
Suppose the user clicks Push. A random integer is added to the stack.

Suppose the user clicks Push again. Another random integer is added to the
stack. Notice that the newly added integer is on top of the old integer.

Suppose the user clicks Push again. Another random integer is added to the
stack. Notice that the newly pushed integer again is on top of the old
integers.

Now suppose the user clicks Pop. The item at the top of the stack is
removed.

Now suppose the user clicks Push. A random integer is added at the top of
the stack.

Now suppose the user clicks Clear. All items are removed from the stack.

Hints: You can use the collection class Stack<T>. To display the content of
the stack, use the ToArray method of the Stack class to convert the stack to
an array and then use foreach (or a loop) to display every element in the
array.
Grading:
Creating GUI [10 points]
Event handling for clicking the Push button [10 points]
Event handling for clicking the Pop button [10 points]
Event handling for clicking the Clear button [10 points]