1. Design a class named Square to represent a square. The class contains:One double data field named side that specify the side's length of the square. Thedefault value is 1 for side's length.A no-arg constructor that creates a default square.A constructor that creates a square with the specified side's length.A method named getAreal) that returns the area of this square.A method named getPerimeter() that returns the perimeter of this square.2. Draw the UML diagram for the class and then implement the class.For more details about UML diagrams see the "UMLNotation.pdf" by Y. Daniel Liang, locatedin LabFiles folder.Discuss:Should the class Square have a main method?Use lab_02 as the name of this Java Application project.3. Write a test program called TestSquare that:Creates two Square objects: one object with side's length 5 and the other object withside's length 5.75.Display the side's length, area, and perimeter of each square object in this order.

The solution involves use of classes, constructors and basic input-output operations.

1. Design a class named Square to represent a square. The class contains: One double data field named side that specify the side's length of the square. The default value is 1 for side's length. A no-arg constructor that creates a default square. A constructor that creates a square with the specified side's length. A method named getArea() that returns the area of this square. A method named getPerimeter() that returns the perimeter of this square.

1. Design a class named Square to represent a square. The class contains: One double data field named side that specify the side's length of the square. The default value is 1 for side's length. A no-arg constructor that creates a default square. A constructor that creates a square with the specified side's length. A method named getArea() that returns the area of this square. A method named getPerimeter() that returns the perimeter of this square.

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 11PE

See similar textbooks

Similar questions

a. Write a FractionDemo program that instantiates several Fraction objects and demonstrates that their methods work correctly. Create a Fraction class with fields that hold a whole number, a numerator, and a denominator. In addition: Create properties for each field. The set access or for the denominator should not allow a 0 value; the value defaults to 1. Add three constructors. One takes three parameters for a whole number, numerator, and denominator. Another accepts two parameters for the numerator and denominator; when this constructor is used, the whole number value is 0. The last constructor is parameterless; it sets the whole number and numerator to 0 and the denominator to 1. (After construction, Fractions do not have to be reduced to proper form. For example, even though 3/9 could be reduced to 1/3, your constructors do not have to perform this task.) Add a Reduce() method that reduces a Fraction if it is in improper form. For example, 2/4 should be reduced to 1/2. Add an operator+() method that adds two Fractions. To add two fractions, first eliminate any whole number part of the value. For example, 2 1/4 becomes 9/4 and 1 3/5 becomes 8/5. Find a common denominator and convert the fractions to it. For example, when adding 9/4 and 8/5, you can convert them to 45/20 and 32/20. Then you can add the numerators, giving 77/20. Finally, call the Reduce() method to reduce the result, restoring any whole number value so the fractional part of the number is less than 1. For example, 77/20 becomes 3 17/20. Include a function that returns a string that contains a Fraction in the usual display formatâ€”the whole number, a space, the numerator, a slash (D, and a denominator. When the whole number is 0, just the Fraction part of the value should be displayed (for example, 1/2 instead of 0 1/2). If the numerator is 0, just the whole number should be displayed (for example, 2 instead of 2 0/3). b. Add an operator*() method to the Fraction class created in Exercise 11a so that it correctly multiplies two Fractions. The result should be in proper, reduced format. Demonstrate that the method works correctly in a program named FractionDemo2. c. Write a program named FractionDem03 that includes an array of four Fractions. Prompt the user for values for each. Display every possible combination of addition results and every possible combination of multiplication results for each Fraction pair (that is, each type will have 16 results).
Design a Ship class that has the following members:a. A field for the name of the ship (a string).b. A field for the year that the ship was built (a string).c. A constructor and appropriate accessors and mutators.d. A toString method that displays the ship's name and the year it was built.Design a CruiseShip class that extends the Ship class. The CruiseShip class should have the following members:a. A field for the maximum number of passengers (an int).b. A constructor and appropriate accessors and mutators.c. A toString method that overrides the toString method in the base class. The CruiseShip class's toString method should display only the ship's name and the maximumnumber of passengers.Design a CargoShip class that extends the Ship class. The CargoShip class should have the following members:a. A field for the cargo capacity in tonnage (an int).b. A constructor and appropriate accessors and mutators.c. A toString method that overrides the toString method in the base class. The…
Create a class named Person that holds the following fields: two String objects for the person’s first and last name and a LocalDate object for the person’s birthdate. Create a class named Couple that contains two Person objects. Create a class named Wedding for a wedding planner that includes the date of the wedding, the Couple being married, and a String for the location. Provide constructors for each class that accept parameters for each field, and provide get methods for each field.
1. Create a class as described below: Class Name: Room Fields: standard room fee amenities total cost Constructors:A default constructor to initialize the fields. The standard room fee field should be set to $200 and the amenities field to zero. Another constructor with one argument. It should assign this value to the standard room fee and the amenities field to the default value of $75. Methods: getStandardFee() - This methods returns the standard room fee field value. getAmenities() - This method returns the amenities field value. getTotalCost() - This method returns the total cost field value. calcTotalCost() - This method calculated the total cost for an instance of the class setStandard Fee() - This method has one argument representing the standard room fee. setAmenities() - This method has one argument representing the amenities for the room.
mau Open Leathing inta... - The class has data members that can hold the name of your cube, length of one of the sides and the color of your cube. - The class has a constructor that accepts the name, length of one of the sides, and color as arguments and sets the data members to those values. - The class has the following methods to set the corresponding data member. setName(string newName) setSide(double newSide) setColor(string newColor) - The class has a method called getVolume() that returns the volume of the cube, calculated by cubing the length of the side. - The class has a method called volumelncrease(double newVolume) that receive the percent the volume should increase, and then the side to the corresponding value. i - For example, 2.5 indicates 2.5% increasing of the volume. So you take the current volume, increase it by 2.5%, and then find the cube root to calculate the new side length. You can use the built in function called cbrt, part of the math library, to find the cube…
Design a class named Rectangle to represent a rectangle. The class must have the following: • double data fields named width and height. The default values are 1 for both width and height A no-argument constructor that creates a default bag. A constructor that creates a rectangle with the specified width and height A getParameter() method to return the perimeter. • A getArear() method to return the area of the Rectangle. Create two Rectangle objects. One with width 4.0 and height 10.0. The other object has width 6.3 and height 10.5.
Create an Investment class that contains fields to hold the initial value of an investment, the current value, the profit (calculated as the difference between current value and initial value), and the percent profit (the profit divided by the initial value). Include a constructor with two arguments: initial, and current values and then calculate profit, and percent profit, and a display function that displays all fields. Create a House class that includes fields for street address and square feet, a constructor that requires values for both fields, and a display function. Create a HouseThatIsAnInvestment class that inherits from Investment and House. It includes a constructor (in order to pass arguments to its parent constructors) and a display function that calls the display functions of the parents. Write a main() function that declares a HouseThatIsAnInvestment and displays its values.
Part A Create a FitnessTracker class that includes three data fields for a fitness activity: a String for the name of the activity as activity, an int for the number of minutes spent participating as minutes, and a LocalDate for the date as date. Create a default constructor that automatically sets the activity to running, the minutes to 0, and the date to January 1 of the current year. Overload the constructor so it receives parameters for each of the fields and assigns them appropriately. Includes methods to get each data field. Part B Create an application that instantiates two FitnessTracker objects. Prompt the user for values for one object, and pass those values to the three constructor parameters. Retain the default constructor values for the other object. Display the values for each object. An example of the program is shown below: Enter activity >> swimming Enter minutes spent swimming >> 90 Enter month >> 2 Enter day >> 24 Enter year >> 2021…
Part A Create a FitnessTracker class that includes three data fields for a fitness activity: a String for the name of the activity as activity, an int for the number of minutes spent participating as minutes, and a LocalDate for the date as date. Create a default constructor that automatically sets the activity to running, the minutes to 0, and the date to January 1 of the current year. Overload the constructor so it receives parameters for each of the fields and assigns them appropriately. Includes methods to get each data field. Part B Create an application that instantiates two FitnessTracker objects. Prompt the user for values for one object, and pass those values to the three constructor parameters. Retain the default constructor values for the other object. Display the values for each object. An example of the program is shown below: Enter activity >> swimming Enter minutes spent swimming >> 90 Enter month >> 2 Enter day >> 24 Enter year >> 2021…
Design a Book class that holds the title, author’s name, and price of the book. Books’s constructor should initialize all of these data members except the price which is set to 500/-. Create a display method that displays all fields. All Books are priced at 500/- unless they are PopularBooks. The PopularBooks subclass replaces the Bookprice and sets each Book’s price to 50,000/- through PopularBooks construcor. Override the display method to display all fields. Write a Main () method that declares an array of five Book objects. Ask the user to enter the title and author for each of the 5 Books. Consider the Book to be a PopularBook if the author is one of the following: Khaled Hosseini, Oscar Wilde, or Rembrandt. Display the five Books’ details. c sharp
Create a RightTriangle class given the following design: RightTriangle variables: base, height methods: 2 constructors, 1 that set default values and another that accepts to parameters. setBase - changes the base. Requires one parameter for base. setHeight - changes the height. Requires one parameter for height. getBase - returns the triangle base. getHeight - returns the triangle height. area - returns the area of the triangle (1/2bh) given the current base and height
Mick’s Wicks makes candles in various sizes. Create a class for the business named Candle that contains the following data fields: color - of type String height - of type int price - of type double Create get methods for all three fields. Create set methods for color and height, but not for price. Instead, when height is set, determine the price as $2 per inch. Create a child class named ScentedCandle that contains an additional data field named scent (of type String) and methods to get and set it. In the child class, override the parent’s setHeight() method to set the price of a ScentedCandle object at $3 per inch.