Is the Array Stack Empty or Full?

push, pop and peek all lean on two tiny status methods, and both of them are missing. Remember that top is an index, so the highest legal index is one less than the capacity.

Requirements:
1. Complete isEmpty() so it is true only when nothing has been pushed.
2. Complete isFull() so it is true only when every slot up to MAX_SIZE is used.
3. Use the MAX_SIZE constant, not the number 5.

Do NOT write a main method.

Expected Output:

true↵
false↵
false↵
true↵
false↵

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

Hints2 available

Topics:

Data Structures & AlgorithmsStacks

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