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(unsorted list) As explained in this chapter. a set is a collections of distinct elementsof the same type. Design the class UnorderedSet, derived from a class unorderedarraylist, to manipulate the set. Note that you need to only redefine only the methods insertAt, insertEnd, and replaceAt. if the item to be inserted is already in the list, the methods insertAt and insertEnd outout the appropriate message. Similarly if the item to be replaced is already in the list, the method replaceAt outputs the appropriate message. Also write a program to test your class.

(unsorted list) As explained in this chapter. a set is a collections of distinct elementsof the same type. Design the class UnorderedSet, derived from a class unorderedarraylist, to manipulate the set. Note that you need to only redefine only the methods insertAt, insertEnd, and replaceAt. if the item to be inserted is already in the list, the methods insertAt and insertEnd outout the appropriate message. Similarly if the item to be replaced is already in the list, the method replaceAt outputs the appropriate message. Also write a program to test your class.

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