java skills

I’m studying and need help with a Computer Science question to help me learn.

In this assignment, you will be practicing the Java OOP skills we’ve learned this week in implementing a customized mutable Array class. Please read the following requirements carefully and then implement your own customized Array class:

=== 1) Basic (100′ pts total) ===

Your Array class must provide the following features:

–1.1) (20′ pts) Two constructors. One takes the input of the initialized capacity (int) and create the underlying array with that capacity; the other takes no input and creates an array that can hold a single element by default (that is, init capacity == 1);

–1.2) (20′ pts) Getters and setters and basic methods we discussed during the class including: getCapacity(), getSize(), set(int index, E val), get(int index), isEmpty();

–1.3) (20′ pts) CRUD operations we discussed during the class including: add(int index, E val), addLast(), addFirst(), remove(int index), removeLast(), removeFirst(), removeElement(int target), removeAll(int target);

–1.4) (20′ pts) Supports generic types;

–1.5) (20′ pts) Mutable, that is when add element exceeding its capacity, it can resize to accommodate the change.

=== 2) Bonus (20′ pts total) ===

2.1) (10′ pts) Implement a (private or public) swap(int a, int b) method that swaps the two elements in the index a and b if a and b are both admissible; also a public reverse() method that reverses the order of stored elements in-place (means, no additional spaces are allocated).

2.2) (10′ pts) A public void sort() method sorts the stored elements in ascending order inO(nlog(n)) time.

[hint]: Quicksort or Merge sort

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