using static System.Console; class AddBooks { } static void Main() { } Book book1= new Book ("Silas Marner", 350, 15.95); Book book2= new Book ("Moby Dick", 250, 16.00); Book book3; book3= book1 + book2; WriteLine("The new book is \"{0}\"", book3. Title); WriteLine("It has {0} pages and costs {1}", book 3. NumPages, book3.Price.ToString("C"));

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 {…

in java but don't write as a GUI (Graphical User Interface) 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, probably named FileCopy depending on what name you gave the project. 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. Class should be named FileCopy do not write to input.txt!

Implement a graphical application that displays a list of courses. Briefly, this GUI will take the inputs (i.e., course information), store them in an array list, and display course information in the output area. Figure 1 shows the layout ofthe CourseDisplay GUI. You should have three Java files: 1. CourseDisplayFrame class that extendsJFrame class (The main part of your program). 2.CourseDisplayViewer class, which contains the main method where a CourseDisplay object will be created, and the GUI will pop up (Suggested frame width of 450, and frame height of 400). 3.Course class, which is the class that models the Course objects (This file will be given to you). In your CourseDisplayFrame class file, you should have the followings: •Input area: –A text label and a text field (suggested width of 30) for course code; –A text label and a text field (suggested width of 30) for course name; –A text label and a text field (suggested width of 30) for course credit; –A text label and a text…