Write a program to create a file called password.txt RUN the program You should see the password.txt file in the Files window Modify/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
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Write a program to create a file called password.txt
RUN the program
You should see the password.txt file in the Files window
Modify/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
Step by step
Solved in 2 steps with 1 images
- Write a program that readswords from a text file and displays all the words (duplicates allowed) indescending alphabetical order. The words must start with a letter. The text fileis passed as a command-line argument.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.Write a program that reads a file named input.txt and writes a file that contains the same contents, but is named output.txt. The input file will contain more than one line when I test this and so should your output file. Do not use a path name when opening these files. This means the files should be located in the top level folder of the project. This would be the folder that contains the src folder. Do not use a copy method that is supplied by Java. Your program must read the file line by line and write the file itself.
- Needs to be written in java using Scanner for user input: Write a program that allows the user to enter name and phone number. Have the program accept input until ZZZ is entered for name. Output each record that contains name and phone number to a file called directory.txt. Write a program that will read the above directory.txt file and print its content on screen.Write a program that asks the user for three tasks they need to accomplish. Write out the tasks to a file named todo.txt. Make sure you number the tasks as shown below when you prompt the user AND when you write out the tasks to the todo.txt file. Enter task #1: Pay rent Enter task #2 : Get gas Enter task #3 : Turn in projectPlease complete these files. There are two text files attached. Running the code should result in the creation of an output file ("PE_output.txt"). Please give full reasoning to the answer. Please also paste the full java code and please attach a screenshot of the successful program run. package solution; import java.io.*;import java.util.Scanner; public class PE_1_problem {@SuppressWarnings("resource")public static String readFirstLetters(String filename) {String result = "";File f = new File(filename);// Surround the next command inside a try/catch block,// as it is possible the file doesn't exist.try {Scanner fileContents = new Scanner(f);while (fileContents.hasNextLine()) {// 1. Get the next line and store in a variable// 2. Check the length of the line. If the line is not an// empty string, add the character at the start of the line// to the result string.// 3. Otherwise, add an empty space to the result string.}fileContents.close();} catch (FileNotFoundException e) {…
- Chapter 4. PC #14. Line Numbers (page 265) Write a java program that asks the user for the name of a file. The program should display the contents of the file with each line preceded with a line number followed by a colon. The line numbering should start at 1. I should be easily type input1.txt and easily print out the output in Eclipse. Please enter the file name or type QUIT to exit:\nquitENTER Test Case 2 Please enter the file name or type QUIT to exit:\nbadfilename.txtENTERFile: badfilename.txt does not exist.\nPlease enter the file name again or type QUIT to exit:\nquitENTER Test Case 3 Please enter the file name or type QUIT to exit:\ninput1.txtENTER1: a\n2: b\n3: c\n4: d\nWrite a program that: Opens a file named foofoo.txt Write the phrase, Hi All! Then writes the odd numbers from 1 – 1000 Then writes Goodbye Closes correctly Make sure that each write is on its own lineusing java Write a program that allows the user to enter name and phone number. Have the program accept input until ZZZ is entered for name. Output each record that contains name and phone number to a file called directory.txt. Write a program that will read the above directory.txt file and print its content on screen.
- Write a program IN JAVA that replaces every “Java” word in a file into the word “HTML” and savesthe file in the same location on disk after printing both the old lines and new lines to theoutput. The input file is passed to the program as a command line argument. Sample file: input.txt Welcome to Java!This is a Java program.I like programming in Java Use the following statements to create a file instance and make a scanner for it: // Create a File instancejava.io.File file = new java.io.File("inputFileName.txt"); // Create a Scanner for the fileScanner input = new Scanner(file); // Read data from a file using input, e.g. input.next()// input.hasNext() determines if there's more data in the file Use the following statements to write to a file: // Create a File instance java.io.File file = new java.io.File("outputFileName.txt"); // Create the filejava.io.PrintWriter output = new java.io.PrintWriter(file); // Write output to the file, this can be…A student launches the Python interpreter from his home directory. His home directory contains another directory called 'mydir', and 'mydir' contains two files called 'foo' and 'bar'. The home directory does not contain any files, only other directories. What will happen when he writes the following code at the Python prompt: >>> import os >>> filenames = os.listdir('mydir') >>> f= open(filenames[0]) ===================================================================================== A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened for writing in text mode. An error will be produced stating that the file to be opened does not exist. An error will be produced stating that filename is not subscriptable. A variable f representing a file object will be created, and the first file in the directory 'mydir' will be opened.public static void doSomething(String str) { System.out.println(str); } public static void main(String[] args) { try { Scanner fileHandler = new Scanner(new File("file.txt")); while(fileHandler.hasNext()) { doSomething(fileHandler.nextLine()); } }catch(IOException io) { // what happens if the file is not there?? } } Contents of file.txt are: Hello CS 1 I hope you are enjoying, yourself!