A folder is a list of files and folders. Write a program that takes the name of a folder as a command-line argument and prints out all of the files contained in that folder, with the contents of each folder recursively listed (indented) under that folder’s name. Hint : Use a queue, and see java.io.File.
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A folder is a list of files and folders. Write a
name of a folder as a command-line argument and prints out all of the files contained
in that folder, with the contents of each folder recursively listed (indented) under that
folder’s name. Hint : Use a queue, and see java.io.File.
Step by step
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- Write a program that replaces all occurrences of a word with anew word in all the files under a directory, recursively. Pass the parameters fromthe command line as follows:java Exercise18_31 dirName oldWord newWordin JAVA write an ADT for a library management system which stores the title (string), author (string), ISBN (string), list price (positive integers), edition (numbers), and publisher (string). Then implement the method swap but remove the assumption that the ith and jth items in the list exist. Throw an exception ListindexoutOfBoundsException ifiorj isoutofrangeusing Java, create a virtual shopping store. using the two txt files (items and sale), display a list of items, price and if on sale. have the user select what items they want until they press 'q' to quit. show list of what they purchased, add the total and how much they saved. class BillProcessor {public static void prepareBill(LinkedHashMap<String, Integer> purchases, LinkedHashMap<String,Double>items, LinkedHashMap<String,String> sales, ArrayList<String> itemNames) {total cost = 0total discount = 0for each item in purchases:compute the regular costif item is subject to a sale (i.e. it appears in the sales lhm)determine the sales price if it's bogo - mod operator and the int/intif it's not bogo - apply the discount pricecompute the actual cost based on thattotal cost = total cost + actual costtotal disc = total disc + discountprint a line formatted like the example that summarizes the purchase of that itemprint the summary}} public class KlumpGroceryStore…
- Write a Java program that incorporates a loop that prompts the user for student data. Student data are private fields in a student class including: String name String address double GPA Each student object is stored in a linked list. After the user completes the data entry, output the contents of the linked list in ascending sorted order by name to a regular text file that can be opened and viewed using a simple plain-text editor such as notepad. Validate numeric data for Grade Point Average (GPA).Write a program that opens a text file (name the textfile “problem4.txt”) and reads its contents into a queue of characters. The user must then enter a character they are looking for. The program should then dequeue each character and count the number of characters that are equal to what the user is looking for. Output the count of the character or lack thereof in a second file (name the textfile “resultsp4.txt”). in C++Write a main() method for the QuickSort class. Create a queue of Item objects and sort them in increasing order. Populate the queue with several Account/Item objects and then call the quicksort method. The Account class has the following instance variables: int accountNumber String customerName double accountBalance The Item class has the following instance variables: int itemId; String itemName double itemPrice Note: This is JAVA PROGRAMMING
- This is a java question Trace through the state of the queue q in the following code fragment in the main method. You need to show the queue with its values for credit. Queue <Integer> q = new ArrayDeque<Integer>( );q.add(14);q.add(-47);q.offer(75);q.poll( );Integer v = q.peek( );q.add( v - 32);q.remove( );q.add(q.poll( ));System.out.println ("q has " + q);System.out.println ("v has " + v); Final Result for q: v:Consider the BadReaderWriter.java program attached with this. The program has three threads, namely, one reader thread and two writer threads, and they all access the same list of numbers. The reader thread reads the list and prints it to the terminal. The writer threads append numbers to the list. At any point in time, if either of the writer threads finds that the list contains n elements, then it appends the number n + 1 to the list. Run this program, examine the output, and identify the problems.Fix these problems by implementing the acquireLock() and releaseLock() methods in the code.Consider the BadReaderWriter.java program attached with this homework. The program has three threads, namely, one reader thread and two writer threads, and they all access the same list of numbers. The reader thread reads the list and prints it to the terminal. The writer threads append numbers to the list. At any point in time, if either of the writer threads finds that the list contains n elements, then it appends the number n + 1 to the list.Run this program, examine the output, and identify the problems.Fix these problems by implementing the acquireLock() and releaseLock() methods in the code.
- Write a program that lets the user enter numbersfrom a graphical user interface and displays them in a text area, as shownin Figure a. Use a linked list to store the numbers. Do not store duplicatenumbers. Add the buttons Sort, Shuffle, and Reverse to sort, shuffle, andreverse the list.Given the queue myData 12, 24, 36 (front is 12), what is the result of the following operations? Enqueue(myData, 48)Enqueue(myData, 60)Dequeue(myData)print(Peek(myData))print(IsEmpty(myData))Write a program that reads a list of integers from input and identifies the mode (the value that appears most often). The input is a sequence of integers that ends with -1. Total number of integers in the list is unknown. Output the mode and end with a newline. Assume that the list is not empty and only one mode exists. Ex: If the input is: 5 9 2 -3 -5 -3 2 1 4 5 5 -1 the output is: 5 import java.util.Scanner; import java.util.ArrayList; public class LabProgram { public static void main(String[] args) { Scanner scnr = new Scanner(System.in); /* Type your code here. */ }}