code solutions to katas from codewars.com

This project is very similar in design to the Mouse2 class and Mouse2Driver example in the book. Remember the project in Ch 4 about calculating the value of an account as it grows, which was enhanced in Ch 5 to look better? We’ll do the same work here but using OOP methodology. In this project, the user will specify the starting balance for a sa…

This project is very similar in design to the Mouse2 class and Mouse2Driver example in the book (Introduction to Programming with Java: A Problem Solving Approach, Second Edition by John Dean and Raymond Dean). Remember the project in Ch 4 about calculating the value of an account as it grows, which was enhanced in Ch 5 to look better? We’ll do …

Previously, you wrote a project for rectangles. This one is similar but can create a 3D object (box) as well as a 2D one (paper). Create a class named Box, with instance variables for length, width, and height. Create a constructor with no parameters that sets the instance variables to 1. Create an overloaded constructor that needs 2 integer par…

SDEV 2210 Project. Create a project that calculates miles per gallon for a given trip, and accumulates the miles and gallons to calculate an overall MPG for the vehicle. Create a class named MPG that includes private instance variables for miles, gallons, and mpg, which are doubles. Add class variables for totalMiles, totalGallons, and totalMPG,…

SDEV 2210 Project. This project simulates the inventory for a fleet of cars. The fleet is an array of Car objects. A Car has a name and an ArrayList of Miles Per Gallon (MPG) objects. An MPG object has variables for miles, gallons, and miles per gallon, which is calculated in the constructor. The driver class will instantiate 3 Car objects and s…

In Competency Exercises, you demonstrate your skill and ability to use the programming principles you've learned in the current and previous modules. You must complete this assignment by yourself, much like a module exam. You can ask instructors for clarification about the project -- you can not ask instructors or other students for help with lo…

You created an inventory program in Ch 9 using an array with size of 2. As you’ve learned, when you don’t know how big an array needs to be, it’s better to use an array list. Make a COPY of the Ch 9 inventory project and change it to use an array list. Does anything need to change in the inventory class? Nothing – all the same variables and meth…

This project simulates the inventory for a fleet of cars. The fleet is an array of Car objects. A Car has a name and an ArrayList of Miles Per Gallon (MPG) objects. An MPG object has variables for miles, gallons, and miles per gallon, which is calculated in the constructor. The driver class will instantiate 3 Car objects and store them in an arr…

Create a project that instantiates an ArrayList of Strings. Follow the directions below for adding and removing data from the ArrayList, then print out the results. You do not need to ask the user for any of this data, type it directly into the code of the main class. Be sure to print out the usual header first, "Chapter 10 Array Lists by Studen…

Create a project that simulates a grade book for a class. Use a 2D array of integers, one row for each student, one column for each test score for that student. Set up the program for any number of students and any number of tests, and ask the user for those numbers. Test the program with 3 students that each have 3 test scores. The CourseGrades…

When asking a user for a time, you might get several different formats of input – just the hour, the hour and minutes, the hour and minutes and seconds, an indication of “am” vs “pm”. In this project, the Time class will have overloaded constructors, one for each of those possible types of input, and most of the constructors will call the primar…

Create a project that calculates miles per gallon for a given trip, and accumulates the miles and gallons to calculate an overall MPG for the vehicle. Create a class named MPG that includes private instance variables for miles, gallons, and mpg, which are doubles. Add class variables for totalMiles, totalGallons, and totalMPG, which are doubles,…

This project does not require a class, because we aren’t going to instantiate any objects. It uses class methods, specifically the main method plus a few more. Create a project named “Ch7Draw”. You will add class methods above the main method. Remember that class methods need the keyword “static” in the heading. To draw a bar of asterisks across…

Calculate future dates

4-function calculator and non-automated unit tests. The calculator gets 2 integer inputs from the user, then calculate the result of addition, subtraction, multiplication, and division. method for each of the 4 operations -- addition, subtraction, multiplication, division

SDEV 1060 Project. In this project, you will create the methods for calculation, and the test methods, using runners for each test method. You can use the same data for all tests; all the tests can go in the same test file. The project uses 4 input numbers, which are doubles between the ranges of -100 and 100, not inclusive (so -100 and 100 are …

SDEV 1060 Project. The calculator will get 2 integer inputs from the user, then calculate the result of addition, subtraction, multiplication, and division. You don't need to write the code to create that part of the project -- you will be testing the methods that perform the calculations, not the user interface. Write a method for each of the 4…

Testing Random Numbers Project SDEV 1060 Project. A senior developer is working on a project and has asked you to do some testing for him. One of the methods in his project creates a random number between supplied minimum and maximum values. He has written the method that will create that random number, run it a few times, and thinks it looks go…