Create a new Java program in Replit to write a username and password to a binary file password.bin jhill and 12345 are used as examples below but you can use any username/password you want. RUN you program Click on password.bin in the Files window and you'll see the contents of the file. Files Main.java password.bin ... password.bin x + 1 NULENG jhillNULNUL NULNULNULNUL 09

IN JAVA Description A teacher has five students who have taken four tests. The teacher uses the following grading scale to assign a letter grade to a student, based on the average of his or her four test scores. Test Score Letter Grade 90-100 A 80-89 B 70-79 C 60-69 D 0-59 F The student and score data are stored in the given file StudentInfo.txt. Create a class named GradeBook in a file named GradeBook.java. The class GradeBook is required to use a String array to hold the five students’ names, an array of five characters to hold the five students’ letter grades, and five arrays of four doubles each to hold each student’s set of test scores. The class should have methods that return a specific student’s name, average test score, and a letter grade based on the average. The program that demonstrates the class GradeBook is given in the file GradeBookDemo.java. You are required to read and understand the given program, and make the program…

The Mid-Term Exam: A program to write (below). Note that you must submit and return directly to me with your name and the date included as an upload Canvas (file) submission. Make sure that your name is used as the file name. (You will not get credit if your exam cannot be read.) No notes, books, cells, Internet Search, computer/device, etc., may be used during this exam. Write a Java program that lets the user enter a series of integers with an input range from 2 to 199 (in random order). The user must enter a value of -1, 0, or +1 (a sentinel which must be an integer and not part of the series of numbers) in order to signal the end of the series. • After all the numbers have been entered, the program should display the smallest and largest numbers entered, and not include the sentinel. Note that this must be a Java implementatiọn, and not pseudo-code, etc. You must use a Loop and If-Else constructs as well.

Write a program to create a file called password.txtRUN the program You should see the password.txt file in the Files windowModify/replace the Main.java program ito  created above to write a username and password on separate lines (jhill and 12345  below  can use for the username/password to the file password.tx

Ask the user for a filename. Display the oldest car for every manufacturer from that file. If two cars have the same year, compare based on the VIN. i am having trouble getting my code to work I have this code: import java.io.File; import java.io.FileNotFoundException; import java.util.ArrayList; import java.util.Scanner; class Car { String manufacturer; String model; int year; String vin; public Car(String manufacturer, String model, int year, String vin) { this.manufacturer = manufacturer; this.model = model; this.year = year; this.vin = vin; } public String getManufacturer() { return manufacturer; } public void setManufacturer(String manufacturer) { this.manufacturer = manufacturer; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public int getYear() { return year; } public void setYear(int year) { this.year = year; } public String getVin() { return vin; } public void setVin(String vin) { this.vin = vin; } } public class Demo {…

1. Given the following import statements: import java.util.Scanner; import java.util.InputMismatchException; import java.io.File; import java.io.PrintWriter; import java.io.IOException; A. В. С. D. Е. F. All of the above. Which ones will be needed for file input/output? 2. Choose from below the instance field declarations associated with file processing. А. private String fileName; В. private double testScore; с. private PrintWriter outputFile; D. В only. Е. Both A and C. F. А, в, С. Enter a letter for the answer: 3. Code a createFile method that handles input/output exceptions through its header. public void createFile sert throws clause for handing an IO (input/output) exception. { System.out.printf("%nEnter the file name for test scores + " (WARNING: This will erase a pre-existing file!): ") ; fileName = input.nextLine (); //Complete creating outputFile a PrintWriter object for opening a file. }//END setFileName () : final void

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.

PLEASE ASK THE USER IF THEY WOULD LIKE TO WRITE INTO THE FILE IF THEY CHOOSE NOT TO DELETE THE FILE, AND WRITE IT INTO THE FILE USING outputStream Write a complete java program that: asks the user for a filename tests whether the file exists and tells the user  if it does exist ask the user whether it should be deleted.  Either delete or do not delete the file based on the user input. If they don't delete it, ask them if they would like to write to the file If they want to write, ask what they want to write to the file and write it.  Make sure to provide plenty of console output dialog specifying what status/actions are taken at each step.

Please help me with this Create an unbreakable encryption and decryption program using java. Then create a GUI txt file. But use your own ideas. More information is down below

Write a java program that  Reads text from the user provided file using FileReader Writes output to a file using the FileWriter class  Catches IOException using try and catch block and prints a customized error message.