Stackable Interface with Undo History

Create a class UndoHistory that implements the provided Stackable interface to track text actions.

Requirements:
- Use a String[] actions array of size 10 and an int top counter (starts at 0) to track the stack.
- push(String item) adds the item at index top and increments top. Ignore if full.
- pop() decrements top and returns the item. Return "empty" if nothing to pop.
- peek() returns the item at top - 1 without removing it. Return "empty" if stack is empty.

Do NOT write a main method.

Expected Output:

Typed B↵
Typed B↵
Typed A↵
empty↵

= newline. The output ends with a newline — print one after the last line.

Hints4 available

Topics:

InterfacesClasses

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