What is the output of the following Python code? myList = {} myDictionary = [] myList[0] = "chegg" myDictionary.insert(0, myList[0]) print(myDictionary) a) ['chegg'] b) {0: 'chegg'} c) chegg d) The code generates an error
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- write a program that reads the students.txt file and stores the name of the student and the grade information as a student object in an arraylist sorts the students names based on their first grade in decreasing order using the selection sort algorithm writes the sorted list as the students last name , middle name (if theres one), first name , and grade information into a text file output example: Robison, Lee 95 80 Green, Alex R 85 60 Waston, Zoe G 100 80 use javaIf N represents the number of elements in the collection, then the contains method of the ArrayCollection class is O(1). True or False If N represents the number of elements in the list, then the index-based add method of the ABList class is O(N). True or FalseWrite a Python function shuffle(myList) that scrambles a list into a random order, like shuffling a deck of cards.
- 2. Using the Hashtable class, write a spelling checker program that readsthrough a text file and checks for spelling errors. You will, of course, haveto limit your dictionary to several common words.3. Create a new Hash class that uses an arraylist instead of an array for thehash table. Test your implementation by rewriting (yet again) the computerterms glossary application.Consider the interface below:import java.util.NoSuchElementException; public interface MyList<E> { public int getSize(); public void insert(E data) throws ListOverflowException; public E getElement(E data) throws NoSuchElementException; public boolean delete(E data); // returns false if the data is not deleted in the list public boolean search(E data); // returns index of data, else -1 is return}a. Use an array object to store the elements of the list object. The program should be able to show its size, get element, delete, and search from the array. b. This array object will have a fixed size of five (5) and that an attempt to insert an element into the array when full will result to a ListOverflowException.Consider the interface below:import java.util.NoSuchElementException; public interface MyList<E> { public int getSize(); public void insert(E data) throws ListOverflowException; public E getElement(E data) throws NoSuchElementException; public boolean delete(E data); // returns false if the data is not deleted in the list public boolean search(E data); // returns index of data, else -1 is return}a. Use an array object to store the elements of the list object. The program should be able to show its size, get element, delete, and search from the array. b. If the array is full and an element is to be inserted, a new array object with a size that is twice than the “old” array will be created. All the elements of the “old” array will be copied to the new array before inserting the new element.
- Write a Java application CountryList. In the main method, do the following:1. Create an array list of Strings called countries.2. Add "Canada", "India", "Mexico", "Peru" in that order.3. Use the enhanced for loop to print all countries in the array list, one per line.4. Add "Spain" at index 15. Replace the element at index 2 with "Vietnam". You must use the set method.6. Replace the next to the last element with "Brazil". You must use the set method. You willlose one point if you use 3 in the set method. Do this in a manner that would replace thenext to the last element, no matter the size of the array list.7. Remove the object "Canada" Do not remove at an index. Your code should work if"Canada" was at a different location. There is a version of remove method that willremove a specific object.8. Get and print the first element followed by "***"9. Call method toString() on countries to print all elements on one line.10. Use the enhanced for loop to print all countries in the array list,…Write a program in Python that uses a dynamic array to enter a list of strings into it. Allow the user to enter as many elements as they want by inserting them, then letting them delete it when need be. Please explain each line.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.
- Write a Java program using ArrayLists that repeatedly asks user to enternumbers. Your program should print the entered numbers and average of thesenumbers. If the user enters ”u”, your program should delete the last enterednumber from the ArrayList. If the user enteres ”r”, the program should removeall elements from the list. If the user enters ”q”, the program should terminate. Hint: You can convert Strings like ”1” to integers with the following code:String str = "1";int one = Integer.parseInt(str);) Do a trace on the binary search method below: variable key holds the value 42, and variable list is a reference to an array with these values {16, 22, 25, 37, 38, 41, 49, 52, 59, 66, 71, 76}. public static int binarySearch(int[] list, int key) { int lowIndex = 0; int highIndex = list.length - 1; while (highIndex >= lowIndex) { int midIndex = (lowIndex + highIndex) / 2; if (key < list[midIndex]){ highIndex = midIndex - 1; } else if (key > list[midIndex]){ lowIndex = midIndex + 1; } else if (key == list[midIndex]){ return midIndex; } } // end of while loop return -1; } // end of binary search method Each row in the table below corresponds to one iteration of the while loop in the method above. You can add or remove rows according to the actual number of iterations needed. The first row’s information corresponds to the first iteration. You need to fill…) Do a trace on the binary search method below: variable key holds the value 42, and variable list is a reference to an array with these values {16, 22, 25, 37, 38, 41, 49, 52, 59, 66, 71, 76}. public static int binarySearch(int[] list, int key) { int lowIndex = 0; int highIndex = list.length - 1; while (highIndex >= lowIndex) { int midIndex = (lowIndex + highIndex) / 2; if (key < list[midIndex]){ highIndex = midIndex - 1; } else if (key > list[midIndex]){ lowIndex = midIndex + 1; } else if (key == list[midIndex]){ return midIndex; } } // end of while loop return -1; } // end of binary search method Each row in the table below corresponds to one iteration of the while loop in the method above. You can add or remove rows according to the actual number of iterations needed. The first row’s information corresponds to the first iteration. You need to fill…