(implementing ArrayList) ArrayList is implemented in the Java API. ImplementArra

Question

(implementing ArrayList) ArrayList is implemented in the Java API. ImplementArrayList and the methods defined in tablebelow. (Hint: Use an array to store the elements in ArrayList. If the size of the ArrayList exceeds thecapacity of the current array, create a new array that doubles thesize of the current array and copy the contents of the current tothe new array.)

java.util.ArrayList
+ArrayList()                                   Creates an empty list
+add(o: Object):void                     Appends a new element o at the end of this list
+add(index: int, o: Object):void       Adds a new element o atthe specified index in this list
+clear():void                                   Removes all the elements from this list
+contains(o: Object):boolean          Returns true if this list contains the element o
+get(index: int):Object                    Returns the element from this list at at the specified index
+indexOf(o: Object):int                   Returns the index of the first matching element in this list
+isEmpty():boolean                         Returns true if this list contains no elements
+lastIndexOf(o: Object):int              Returns the index of the last matching element in this list
+remove(o: Object):boolean            Removes the element o from the list
+size():int                                         Returns the number of elements in this list
+remove(index: int):boolean              Removes the element at the specified index
+set(index: int, o: Object):Object       Sets the element at thespecified index

Explanation / Answer

(implementing ArrayList) ArrayList is implemented in the Java API. ImplementArra

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