The data structure developed for program 1 does not identify an indexOf method. This useful tool reports back the List index of the first item it finds that matches its input parameter. If it is not present in the List, the method returns -1. Write the indexOf method. You may (and should) use any of the public methods identified in the List interface under program 1 in your solution. Use Example: int main(){ List myList = new LinkedList({1,2,3,4,5,7, 9}); « myList.index0f(4) 11 std::cout < "Index of 4: << std::endl; « myList.index0f 11 std::cout < "Index of 310: (310) << std::endl; } Output: -1
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- Trying this again since part of my question keeps disappearing Given main() in the ShoppingList class, define an insertAtEnd() method in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts where 4 is the number of items to be inserted; Kale, Lettuce, Carrots, Peanuts are the names of the items to be added at the end of the list. The output is: Kale Lettuce Carrots Peanuts public class ItemNode { private String item; private ItemNode nextNodeRef; // Reference to the next node public ItemNode() { item = ""; nextNodeRef = null; } // Constructor public ItemNode(String itemInit) { this.item = itemInit; this.nextNodeRef = null; } // Constructor…JAVA plese Implement the indexOf method in the LinkedIntegerList class public int indexOf(int value); /** * Returns whether the given value exists in the list. * @param value - value to be searched. * @return true if specified value is present in the list, false otherwise. */ } public static void main(String[] args) { // TODO Auto-generated method stub SimpleIntegerListADT myList = null; System.out.println(myList); for(int i=2; i<8; i+=2) { myList.add(i); } System.out.println(myList.indexOf(44));in java Write a method for the Linked Based List class which returns the largest item in the list. If the list is empty return null. Assume that class T is Comparable.DO NOT USE ANY OTHER METHODS OF THE LINKED BASED LIST CLASS. What is the worst case and best case complexity of the code in the previous problem? Explain your answer.
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