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- In Java, the File class is used to represent the data in a directory entry. Write a program that uses the File class to print all the attributes of a file.Programming Problem 3 – CycleFileInput Revisit the Cycle class in Module 3. Modify your application such that the properties will be read from a text file called “Cycle.txt”. Directions Examine your application for the class called Cycle. Add an appropriate throws statement in the main method. Create a reference to a File class with the appropriate name of a text file (Cycle.txt). Note: Cycle.txt was created in the previous assignment, CycleFileOutput. In your code, check that the text file does exist. Input the values from the file to memory. Close the file.4. Assume you have the following code, which creates a Scanner object to read input from a text file: Scanner sc file = new Scanner(new File("input.txt")); a. What is the name of the text file in the file system? "input.txt" Module 12 Workshop Activity 2B Page 5 of 6 b. What happens if you run the above code in a main method without try-and-catch blocks? Try it out and add a screenshot. C. Give the code that reads the first 10 lines of the text file using the method nextLine (). d. What happens if you create a second Scanner object sc2 from the same text file and use sc2.nextLine () ? Does it start where the first one left off, or does it start at the beginning of the file again? Try it out and add a screenshot. e. If there are 15 lines in the text file input.txt. What happens if you write code that tries to read 16 lines from the text file? Try it out and add a screenshot.
- IN JAVA Arrange the data for your chart in a text file as follows: The first line of the file is the title for the chart The second line of the file is the units used in the chart The rest of the file contains data values for the chart alternating with the label to print with the value on the preceding line. The program must be able to produce a chart from any data file arranged as described above. The name of the data file and the output file are provided on the command line. The program must check that there are enough command line arguments and stop with a suitable message if not. The program saves the chart to the output file (2nd command line argument); it may also display the chart to the terminal, but it is not required to. In addition to the above, accept two additional command line arguments: The maximum width for the chart (just the bar itself, not including the labels) The symbol to use for the barsExampleTwo This program loops through fileLoop.txt, computation, and display results package charioloop; import java.util.Scanner; import java.io.*; // public class Charioloop { public static void main(String[] args) throws IOException { //Create a reference to the physical file File loopfile = new File("fileLoop.txt"); // connect a Scanner to the file Scanner getAll = new Scanner( loopfile ); int num = 0, square = 0; while(num != -1){ num = getAll.nextInt(); square = num * num ; System.out.println("The square of " + num + " is " + square); } getAll.close(); } } /* Create fileLoop.txt in I:\\Ajava\161\WPPractice\IO\charstream\charioloop My fileLoop.txt looks like this: 2 3\ 2 10 -1 Note:- Study this program and follow the given instruction and execute type the code and provide also output for this java program as soon as possible.The file Names.txt is located in the folder input_files within your project. The content of that file is shown in the following figure Java: import java.io.FileInputStream;import java.io.FileNotFoundException;import java.util.ArrayList;import java.util.Scanner;public class Question2 {public static void main(String[] args) throws FileNotFoundException {/*** Part a* Finish creating an ArrayList called NameList that stores the names in the file Names.txt.*/ArrayList<String> NameList;/*** Part b* Replace null on the right-hand-side of the declaration of the FileInputStream object named inputStream* so that it is initialized correctly to the Names.txt file located in the folder specified in the question description*/FileInputStream inputStream = null;Scanner scnr = new Scanner(inputStream); //Do not modify this line of code/*** Part c* Using a loop and the Scanner object provided, read the names from Names.txt* and store them in NameList created in Part a.*//*** Part d* Reorder the…
- This is for Advanced Java Programming Write a test program that reads words from a text file and displays all non-duplicate words in ascending order and then in descending order. - The file is to be referenced in the program, not needing to be used as a command line reference. - The word file is to be titled collection_of_words.txt and included in your submission. Write test code that ensures the code functions correctly.Write a program (in Java or C++), allowing to: • Create a folder "Main" • Create a file in the folder "File1" Add Read, Write permissions to "File1" Write in "File1" ● ● Read the content of "File1" ● Modify the content of "File1" Remove the Write permission of "File1" Try to write again in "File1" ● A screenshot is needed showing the results of the program execution.Task 3: Summary We would like to be able to generate a summary for each logfile to give us a rough idea of its contents. Instructions Create a file called Summary.java. As with Task 1, open the file for reading in a try-catch block. Read through the entire file, counting how many of each message/event type occurs. Print out a summary with the count of each event/message type. As a sanity check: the total number of message/event type counts should equal 1000. Hint: a useful method could be String.split. Sample Input/Output Example 1: Summary -------------------- Notifications: 322 Warnings: 326 Errors: 352 Cannot find logfile! Exiting...
- Rules: Corner cases. Throw the specified exception for the following corner cases: Throw an IllegalArgumentException if the client calls either addFirst() or addLast() with a null argument. Throw a java.util.NoSuchElementException if the client calls either removeFirst() or removeLast when the deque is empty. Throw a java.util.NoSuchElementException if the client calls the next() method in the iterator when there are no more items to return. Unit testing. Your main() method must call directly every public constructor and method to help verify that they work as prescribed (e.g., by printing results to standard output). Performance requirements. Your implementation must achieve the following worst-case performance requirements: A deque containing n items must use at most 48n + 192 bytes of memory, not including the memory for the items themselves. Each deque operation (including construction) must take constant time. Each iterator operation (including construction) must take…Instead of making a class Serializable, the developer can write each of the member variables to a file. This process takes longer and requires more code. True FalseIn C++ For this assignment, you will create a system for users to review restaurants. To review a restaurant, the user needs to login to the system first. Create a file (you can do this by hand rather than through code) named 'users.txt' and add the following information to it: User1 password steve mypassword reviewer 54321 Each line represents a user. The first word is their username and the second is their password. At the start of your main function, call a function named login, which asks for a username and password. If you find a matching username/password pair in 'users.txt', return the username. Otherwise, ask the user to try again. Back in main, assign the value returned from login to a variable. This will allow you to know which user is currently logged in. Next, build a while loop menu with the following options: •Review a restaurant. Call a function named reviewRestaurant. Ask what restaurant the user wants to review and how many stars to give it. The star amount must be…