There are two common classes used for reading from a text file. They are: PrintWriter and BufferedReader FileInputStream and Scanner BufferedReader and Scanner None of the above
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PLZ help with the following IN JAVA
There are two common classes used for reading from a text file. They are:
- PrintWriter and BufferedReader
- FileInputStream and Scanner
- BufferedReader and Scanner
- None of the above
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- Challenge 3: Encryption.java and Decryption.java Write an Encryption class that encrypts the contents of a binary file. Your encryption program should work like a filter, reading the contents of one file, modifying the data into a code, and then writing the coded content out to a second file. The second file will be a version of the first file, but written in a secret code. Use a simple encryption technique, such as reading one character at a time, and add 10 to the character code of each character before it is written to the second file. Come up with your own encryption method. Also write a Decryption class that reads the file produced by the Encryption program. The decryption file will use the method that you used and restore the data to its original state, and write it to a new file.Use Iterator design pattern to Write a java Gui application that can iterate through saved files.create methods that create and return something that can be output by a calling program. Maker sure to separate the processing (functionality) and presentation (user interface) into two separate java files. Write a recursive method that is passed a single int parameter, N, and create and return a String containing all the odd numbers between N and 0 in descending order. Subject: Java Programming
- Question: You are required to implement a preprocessor in Java. Your preprocessor should be able to perform the following tasks on an input file, which will be a Java source file: A. java code for removing commentsYou are required to implement a preprocessor in Java. Your preprocessor should be able to perform the following tasks on an input file, which will be a Java source file: 1. Removing comments 2. Identifying built-in language constructs 3. Identifying loops and methodsQuestion: You are required to implement a preprocessor in Java. Your preprocessor should be able to perform the following tasks on an input file, which will be a Java source file: A. java code for Identifying loops and methods
- For this exercise, you will create 2 classes: InputOutput class and AddNumbers class. ⦁ InputOutput Class: write a program that carries out the following tasks:⦁ Create an object of type PrintWriter and that writes into a file with the name greeting.txt.⦁ Print the message “Hello, world!” on the file.⦁ Close the file.⦁ Open the same file again.⦁ Read the message into a string variable (hint: use nextLine() method to read the text).⦁ Print the message on the screen. ⦁ AddNumbers Class: write a program that asks the user to input four floating-point numbers. Add all correctly specified values and print the sum when the user is done entering data. Use exception handling to detect improper inputs. For example, the user might enter letters instead of numbers. In this case, use the exception handling mechanism to print a proper message. (hint: use InputMismatchException) Don’t forget to import java.util.*.-Include 2 java files(FreezeBoil and FreezeBoilDriver) -Include UML diagram -Please Include Pseudecode -also some comments in the code if you canJava code attach output of code.below.
- For the ReadWords class that is used to read the content of a given text file, which of the following represent a valid no-arguments constructor definition? Select one: a. None of these O b. public ArrayList ReadWords() throws FileNotFoundException {...} O c. public void ReadWords() throws FileNotFoundException {...} O d. public ReadWords() throws FileNotFoundException { ...}Write a program in Java to perform the following: Using a BufferedReader class and related objects, read a string object consists of 60 words plus some special characters and numbers. Include double space between some words. Include a few $ and % signs in your text. Store that text into a file using proper classes and methods. Call that file fileon.doc which will be your input file then read the contents of that file and perform the following operations using java available methods: Add a new line at the beginning of the text to include your name and the class name (csc 202) Find the length of you text Change the first character of each line to upper case . Find the number and location of all $ sign and re place it with a space. Delete all double spaces Calculate the number of special characters Find the number of lines in your text. Remember each line is terminated by a “.”, find the number of vowel in the last line Count the number of digits in your text. Append a new line consist…ExampleTwo 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.