Assume that list1 is an object of class type ArrayList of Java (similar to KWArrayList class) and it has the following values 46321 the instruction list1.set(1, get(indexOf(2));: will change the list to 3 4 6 2 B 16 82 1 C 36321 42321
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- IN JAVA Suppose that in the array-based stack, the array doubles in size after multiple push operations. But later on, fewer than half of the array’s locations might actually be used by the stack due to pop operations. Revise the implementation so that its array also can shrink in size as objects are removed from the stack. Accomplishing this task will require two new private methods, as follows: The first new method checks whether we should reduce the size of the array: private boolean isTooBig() This method returns true if the number of entries in the stack is less than half the size of the array and the size of the array is greater than 20. The second new method creates a new array that is three quarters the size of the current array and then copies the objects in the bag to the new array: private void reduceArray() Implement each of these two methods, and then use them in the definition of pop()The implementation of a queue in an array, as given in this chapter, uses the variable count to determine whether the queue is empty or full. You can also use the variable count to return the number of elements in the queue. On the other hand, class linkedQueueType does not use such a variable to keep track of the number of elements in the queue. Redefine the class linkedQueueType by adding the variable count to keep track of the number of elements in the queue. Modify the definitions of the functions addQueue and deleteQueue as necessary. Add the function queueCount to return the number of elements in the queue. Also, write a program to test various operations of the class you defined.Computer Science ** In JAVA** What would a generic radix sorter look like that computed the same function on Strings as my EXAMPLE (below), that checks true, or throw an exception….? EXAMPLE: StringComparator.java import java.util.Comparator; public class StringComparator implements Comparator { @Override public int compare(String s1, String s2) { return s1.toLowerCase().compareTo(s2.toLowerCase()); } } HeapSort.java import java.util.ArrayList; import java.util.Comparator; public class HeapSort { public void sortingHeapTree(ArrayList arr, Comparator c) { int n = arr.size(); for (int i = n / 2 - 1; i >= 0; i--) HeapTreeConstruction(arr, n, i, c); for (int i = n - 1; i >= 0; i--) { T temp = arr.get(0); arr.set(0, arr.get(i)); arr.set(i, temp); HeapTreeConstruction(arr, i, 0, c); } } void HeapTreeConstruction(ArrayList arr, int n, int i, Comparator c) { int root = i; // Initialize largest as root int l = 2 * i + 1; // left = 2*i + 1 int r = 2 * i + 2; // right = 2*i + 2 if…
- Write a class TouristSpot that has the data members; name of tourist spot, state in which it lies. Create an array list of n places and write a function that takes array list as an argument to identify a state that has more than one tourist spot. Java ProgramDevelop a class ResizingArrayQueueOfStrings that implements the queueabstraction with a fixed-size array, and then extend your implementation to use arrayresizing to remove the size restriction.Develop a class ResizingArrayQueueOfStrings that implements the queueabstraction with a fixed-size array, and then extend your implementation to use arrayresizing to remove the size restriction.Java Consider the following class definition for an array-based stack implementation:pubic class Stack { private int[] m_array; private int m_index; public Stack(int cap) { m_array = new int[cap]; m_index = 0; } public void push(int v) { if (m_index == m_array.length) throw new RuntimeException("push attempted on a full stack"); else { m_array[m_index] = v; m_index++; } }} Follow the steps below to create a class SpecialStack with required instance variables and methods.a. Make sure that the SpecialStack class inherits from Stack. b. Declare two private instance variables: a boolean variable m_multiply, and an int variable m_number.c. Create a constructor that takes three parameters: an int cap, a boolean multiply, and an int number.d. The constructor should call the constructor of the super class and initialize the instance variables properly.e. Override the push method so it verifies if m_multiply is…
- A) Write a generic Java queue class (a plain queue, not a priority queue). Then, call it GenericQueue, because the JDK already has an interface called Queue. This class must be able to create a queue of objects of any reference type. Consider the GenericStack class shown below for some hints. Like the Stack class below, the GenericQueue should use an underlying ArrayList<E>. Write these methods and any others you find useful: enqueue() adds an E to the queue peek() returns a reference to the object that has been in the queue the longest, without removing it from the queue dequeue() returns the E that has been in the queue the longest, and removes it from the queue contains(T t) returns true if the queue contains at least one object that is equal to t *in the sense that calling .equals() on the object with t the parameter returns true.* Otherwise contains returns false. size() and isEmpty() are obvious.Using Java to design and implement the class PascalTriangle that will generate a Pascal Triangle from a given number of rows. Represent each row in a triangle as a list and the entire triangle as a list of these lists. Please implement the class ArrayList for these lists. Please do not use the binomial coeffiient formula { C(n,k)= n! / (k!*(n-k)!) to create the triangle. The triangle has to be generate using in this way: each row of the triangle begins and ends with 1, value at (x,y) equals to sum of value at (x-1, y-1) & (x-1,y), whereas x is the row number and y is the columm.What is the best way to implement a stack or a queue so that it can hold an arbitrary number of elements? Select one: a. Using an array, and throwing an exception when the stack or queue is full. b. By creating a bigger array when the stack or queue is full, and copying the elements from the original array. c. Using linked lists to store the collection of elements.
- Create a Java program that collects 3 animal types from the user, stores them to an Linked List andthen outputs/displays the contents of the Linked List to the user after the third animal type isentered. (Capturing data, use of a loop, use of a linked list, 3 animal types, stringvalue).Please make a JAVA program for the following: Use an array object to store the elements of the list object. This array object will have a fixed size offive (5) and that an attempt to insert an element into the array when full will result to a ListOverflowException.java program: If in the ArrayStack, the first element that we push to the stack, is stored in location capacity – 1 (capacity is the capacity of the array theData) in the array theData and the subsequent elements that we push, we keep on adding before the last element added in the array. That is, in the constructor of class ArrayStack, we initialize the topOfStack to capacity and we write the push method as follows: public E push(E obj) { if (topOfStack == 0) reallocate(); topOfStack--; theData[topOfStack] = obj; return obj; } This push method can work but the if statement should be: if (topOfStack == theData.length - 1) reallocate(); This push method will work provided we modify the reallocate method. This push method can work, but topOfStack-- ; should come after theData[topOfStack] = obj; This push method can work, but topOfStack-- ; should be topOfStack++;