This assignment will help you to get started with data types, variables, and arithmetic expressions. 1. If using NetBeans, create a new project. Use meaningful project name, for example, "hw2", "AreaAndPerimeter", or similar. 2. To begin, put a block comment at the beginning of your Java file. In the comment, include the assignment number, assignment title, program author, and the date the assignment is due. 3. Declare the AreaAnd PerimeterCalc class, then add a main method to it. 4. Display a welcoming message to the user. 5. Create a double variable named length and assign a hardcoded value to it. 6. Create a double variable named width and assign another hardcoded value to it. 7. Create a third variable named area. Assign a value to the area. It should be the result of the length multiplied by the width. 8. Create a fourth variable named perimeter. Use formula 2 * length + 2*width to compute the perimeter and store the result. 9. Use System.out object to display names of all variables follwed by the tab character ('\t'). followed by the value of that variable. Print each variable/value on separate line.

Imagine we were creating a Textbased Adventure program and our Rooms in the assignment above could hold Items. We are not writing the complete game, but lets write a program that will build the Item.txt file. Create a new project. Add a class called Item that stores information about an item that can be placed in a room. An item has a name, a description and the room number in which the item is initially is stored. LAMP, a brightly shining lamp, 3 is an example of data that an Item might contain. Using the UML model below, create the private data members and methods for constructing an item. Create an ItemFileWriter class with a static method to write the items from the given ArrayList to a text file.. The items text file will hold the item name, item description and the initial room that the item is to be loaded into, on seperate lines followed by a blank line. An example of the file that is to be constructed is attached. Construct a class with main() in it. Create an…

Your module should be named “loc.py”. Include instance variables for all data about a location (name, summary, details.) The constructor should allow creating a location with whatever name, summary, and details you want, but a newly create Locale has not yet been visited. The string representation of a Locale should be its summary if it has not yet been visited, otherwise it should be a brief message including its name, such as “You are at Sandy Beach.” Include other observer and mutator methods as needed.

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!

Create a new project named lab7_1. You will be implementing a Tacos class. For the class attributes, let’s use to type of taco, number of tacos, and price. Note that the price per taco of any type is 99 cents. Therefore, allow the taco type and number of tacos to be set directly, but not the price! The price should be set automatically based on the number of tacos entered. So a good idea may be to call the setter for the price inside the function that sets the number of tacos. Some other requirements: A default constructor and a constructor with parameters for your taco type and number of tacos member variables. You should also include setters and getters for these private member variables. However, make sure that the setter for price is private! You don’t want anyone outside the class modifying price. This setter should be called anytime you change the number of tacos. Your constructor needs to call a set method that allows you to set the two member variables, thus takes two…

Q2: Create a book modelDraw a class diagram to depict a book as specified by the following statement: "A book is made up of several parts, each of which is made up of several chapters."Sections are made up of chapters." To begin, concentrate just on classes and associations.Multiplicity should be added to the class diagram you created.Improve the class diagram by adding the following features:• The book has a publisher, a publishing date, and an ISBN number.• A title and a number are included in a part; a title, a number, and an abstract are included in a chapter; and a title, a number, and an abstract are included in a section.Take a look at the refined class diagram. A title and a number characteristic are included in the Part, Chapter, and Section classes. To factor out these two traits, use inheritance.

*with psuedo code First, launch NetBeans and close any previous projects that may be open (at the top menu go to File ==> Close All Projects). Then create a new Java application called "WeightedAvgDataAnalyzer" (without the quotation marks), that does the following: This program is similar to the previous assignment - "WeightedAvgDropSmallest" - with a major difference that the inputs for the program will be read from a file and the output for this assignment should be written to a new file.  The concept of application is as follows: The program will read numbers from a file -  data.txt - that you will create, where the weight is a double (greater than 0.0 and less than or equal to 1.0) and the other numbers are the number, n, of lowest values to drop and then the numbers to be averaged after dropping the lowest n values. Example data.txt file would display: 0.5 3 10 70 90 80 20 The program then calculates the weighted average of all those numbers except the lowest n numbers, where…