(Directory size) Listing 18.10, DirectorySize.java, gives a recursive method for finding a directory size. Rewrite this method without using recursion. Your
long getSize(File directory) {
long size = 0;
add directory to the queue;
while (queue is not empty) {
Remove an item from the queue into t;
if (t is a file)
size += t.1ength();
else
add all the files and subdirectories under t into the
queue ;
}
return size;
}
Want to see the full answer?
Check out a sample textbook solutionChapter 20 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Additional Engineering Textbook Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
Starting Out with Python (3rd Edition)
Starting Out with C++: Early Objects (9th Edition)
Starting Out with C++ from Control Structures to Objects (8th Edition)
Database Concepts (7th Edition)
- def removeMultiples(x, arr) - directly remove the multiples of prime numbers (instead of just marking them) by creating a helper function. This recursive function takes in a number, n, and a list and returns a list that doesn’t contain the multiples of n.def createList(n) - a recursive function, createList(), that takes in the user input n and returns an array of integers from 2 through n (i.e. [2, 3, 4, …, n]). def Sieve_of_Eratosthenes(list) - a recursive function that takes in a list and returns a list of prime numbers from the input list.Template below: def createList(n): #Base Case/s #ToDo: Add conditions here for base case/s #if <condition> : #return <value> #Recursive Case/s #ToDo: Add conditions here for your recursive case/s #else: #return <operation and recursive call> #remove the line after this once all ToDo is completed return [] def removeMultiples(x, arr): #Base Case/s #TODO: Add conditions here for your…arrow_forwardplease code in python Forbidden concepts: recursion, custom classes Create a program that finds all the prime numbers between 2 to 1000. As each is found, add it to the list, then print the list in an organized fashion.arrow_forwardIn Python: Write a recursive function named Multiply2 that multiples by 2 and prints each element in a given list. For example: mylist=[1,2,3,4] Multiply2(mylist) prints: 2 4 6 8 Note: the function takes only one parameter, which is the list on which the operation will be performed. It's ok if the list becomes empty after calling the function.arrow_forward
- Instructions: Implement a merge sort in Java, creating a class to hold the main method as well as the mergesort method (which should be a static method). The mergesort method should be able to use any Collection object and it should return a Collection that contains the contents of the original Collection, but in sorted order. The program must ask the user for the data to sort, using numeric data in this case, but your mergesort method must be capable of working with any Collection of Comparable objects. Use recursion.arrow_forward1. (Store numbers in a linked list) Write a program that lets the user enter numbers and displays numbers as described below. Use a linked list to store the numbers. Do not store duplicate numbers. Add the methods Sort, Shuffle, and Reverse to sort, shuffle, and reverse the list in the application class (driver class). Please submit the source code and bytecode.arrow_forwardgetSumEven Method; (Java) *Do not change method parameters* public static int getSumEven(int[] array) Returns the sum of even values (if any) present in the array parameter. You can assume array is not null. You may only use one auxiliary function. Your implementation must be recursive and you may not use any loop construct. Do not use ++ or -- in any recursive call argument. It may lead to an infinite recursion. For example, use index + 1, instead of index++. Parameters: array - Returns: Sum of even valuesarrow_forward
- JAVA requirements: pls write down source code: test cases: input: screenshot output: screenshot thanks1 Practice 2 1. (Sorted?) Write the following method that returns true if the list is already sorted in increasing order. public static boolean isSorted(int[] list) Write a test program that prompts the user to enter a list and displays whether the list is sorted or not. Here is a sample run. Note that the first number in the input indicates the number of the elements in the list. This number is not part of the list.arrow_forward(True/False): Arrays are passed by reference to avoid copying them onto the stackarrow_forwardPlease Use C language. 1. In most personal computers, the largest integer is 32,767 and the largest long integer is 2,147,483,647. Some applications, such as the national debt, may require an unbounded integer. One way to store and manipulate integers of unlimited size is by using a linked list. Each digit is stored in a node of the list. For example, the figure below shows how we could store a five-digit number in a linked list.arrow_forward
- Q1: Write a java application for the stack operations with Linked List. Q2: Write java program to take the order from the customer and display the ordered items and total payment. If customer is entering the wrong name or not following the order to enter the menu it has to display error messages. (Find in the sample code) Sample Output:arrow_forwardCount word dominators def count_word_dominators(words): If you already solved the earlier count_dominators problem, you might notice that even though the problem was originally stated for lists of integers, the logic of domination did not depend on this fact in any way. As long as the individual elements can be compared with each other for order, the Pythonic spirit of duck typing allows the very same count_dominators function to handle a list of strings just as smoothly as it would handle a list of integers! For example, the function call count_dominators(['dog','emu','cat','bee']) would return 3, since 'emu', 'cat'and 'bee' dominate all words coming after them in the list when using the lexicographic order comparison. If your count_dominators function does not already pass this hurdle, try to rewrite it to contain no baked-in assumptions about elements being specifically integers. However, things become more interesting if we define domination between words of equal length with a…arrow_forward(Merge two sorted) Write the following function that merges two sorted lists into a new sorted list:void merge(const int list1[], int size1, const int list2[], int size2,int list3[])Implement the function in a way that takes size1 + size2 comparisons. Write a test program thatprompts the user to enter two sorted lists and display the merged list.Here is a sample run.Note that the first number in the input indicates the number of the elements in the list. This number isnot part of the list. Assume the maximum list size is 80.Enter list1: 5 1 5 16 61 111Enter list2: 4 2 4 5 6The merged list is 1 2 4 5 5 6 16 61 111arrow_forward
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education