Task $1$: Implementing a Stack using Arrays

Implement a stack data structure using arrays in Java. Include the following operations:

push$($item$)$: Pushes an item onto the stack.

pop$()$ : Removes and returns the top item from the stack.

peek$()$ : Returns the top item from the stack without removing it$.$

isEmpty$()$: Returns true if the stack is empty, false otherwise.

Solution: