The conversation between human and AI assistant.
What is the best Java program to implement stack?
Hmm, interesting. Can you explain how the array implementation works?
Sure! Basically, you create an array of a certain size and then use it to store the elements in the stack. You also need to keep track of the top of the stack, which is the index of the last element added to the stack. When you push an element onto the stack, you increment the top index and add the element to the corresponding position in the array. When you pop an element off the stack, you retrieve the element at the top index, decrement the top index, and return the element.