Exercise 2: A. Write static methods: public static double cubeVolume(double h) : h public static double cubeSurface(double h) : 6h2 public static double cylinderVolume(double r, double h) : hnr? public static double cylinderSurface(double r, double h) : 2rnh + 2nr? that compute the volume and surface area of a cube with height h, and a cylinder with circular base with radius r and height h. Place them into a class named "Geometry.java". Then write a program with main class called "Lab7_yourlID.java" that prompts the user for the values of r and h, calls the four methods, and prints the results. B. (Optional) Reconsider your previous solution by implementing classes Cube, and Cylinder separately instead of a single class "Geometry" (part A). Which approach is more object-oriented?

Exercise 2: A. Write static methods: public static double cubeVolume(double h) : h public static double cubeSurface(double h) : 6h2 public static double cylinderVolume(double r, double h) : hnr? public static double cylinderSurface(double r, double h) : 2rnh + 2nr? that compute the volume and surface area of a cube with height h, and a cylinder with circular base with radius r and height h. Place them into a class named "Geometry.java". Then write a program with main class called "Lab7_yourlID.java" that prompts the user for the values of r and h, calls the four methods, and prints the results. B. (Optional) Reconsider your previous solution by implementing classes Cube, and Cylinder separately instead of a single class "Geometry" (part A). Which approach is more object-oriented?

Programming Logic & Design Comprehensive

9th Edition

ISBN:9781337669405

Author:FARRELL

Publisher:FARRELL

Chapter10: Object-oriented Programming

Section: Chapter Questions

Problem 15RQ

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Exercise 2: A. Write static methods: public static double cubeVolume(double h) : h3 public static double cubeSurface(double h) : 6h2 public static double cylinderVolume(double r, double h) : har2 public static double cylinderSurface(double r, double h) : 2rnh+ 2nr2 that compute the volume and surface area of a cube with height h, and a cylinder with circular base with radius r and height h. Place them into a class named "Geometry.java". Then write a program with main class called "Lab7 yourlID.java" that prompts the user for the values of r and h, calls the four methods, and prints the results. ond
Write static methods* public static double cubeVolume(double h)* public static double cubeSurface(double h)* public static double sphereVolume(double h)* public static double sphereSurface(double h)* public static double cylinderVolume(double h)* public static double cylinderSurface(double h)that compute the volume and surface area of a cube, sphere, and cylinderPlace them in a class GeometryUse the given tester file to test your calculations
Exercise 3: A. Write static methods: public static double sphereVolume(double r) :Tr3 public static double sphereSurface(double r) : 4ar2 public static double coneVolume(double r, double h): – thr² public static double coneSurface(double r, double h) :7r(h+r) 1 3 that compute the volume and surface area of a sphere with radius r, and a cone with circular base with radius r and height h. Place them into a class "Geometry2.java". Then write a program with main class called "Lab7_yourID.java" that prompts the user for the values of r and h, calls the four methods, and prints the results. B. (Optional) Reconsider your previous solution by implementing classes Sphere, and Cone separately instead of a single class "Geometry2" (part A). Which approach is more object-oriented? Extra Geometry to try: Area of Plane Shapes Area is the size of a surface! Learn more about Area, or try the Area Calculator. Triangle Area = 2 x b x h b = base h = vertical height Square Area = a? a = length of side a b…
Exercise 3: A. Write static methods: • public static double sphereVolume(double r) :r3 • public static double sphereSurface(double r) : 47tr? • public static double coneVolume(double r, double h): – thr² public static double coneSurface(double r, double h) :7r(h +r) that compute the volume and surface area of a sphere with radius r, and a cone with circular base with radius r and height h. Place them into a class “Geometry2.java". Then write a program with main class called “Lab7_yourlD.java" that prompts the user for the values of r and h, calls the four methods, and prints the results.
A regular polygon is an n-sided polygonin which all sides are of the same length and all angles have the same degree (i.e.,the polygon is both equilateral and equiangular). The formula for computing thearea of a regular polygon is given below: Write a method that returns the area of a regular polygon using the following header:public static double area(int n, double side)Write a main method that prompts the user to enter the number of sides and theside of a regular polygon and displays its area. Here is a sample run: Enter the number of sides: 5 ↵EnterEnter the side: 6.5 ↵EnterThe area of the polygon is 72.69017017488385
All coding is done in Java, using IntelliJ Idea. 3. Charge Account Validation Create a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers: 5658845 4520125 7895122 8777541 8451277 1302850 8080152 4562555 5552012 5050552 7825877 1250255 1005231 6545231 3852085 7576651 7881200 4581002 These numbers snould be stored in an array or an ArrayList Object. Prompt the user to choose search methodology between sequential/linear search, and binary search before the search is performed. Have the search locate the number passed as an argument. If the number is in the array, the method should return true, indicating the number is valid. If the number is not…
Design an application that does the following: A Solid can be a FlatSurfaceSolid or a CurvedSurfaceSolid. Every solid will have a volume. The method volume will be polymorphic. A solid has faces, vertices and edges. A flat-surface solid also has a variable called side which represents the length of the side. A curved-surface solid also has a radius. A Cube is a FlatSurfaceSolid. A cube has 6 faces, 8 vertices and 12 edges. It will have a side. A Sphere is a CurvedSurfaceSolid. It has 1 face, 0 vertices and 0 edges. It will have a radius. Create an ArrayList of solids (driver file named YourLastNameCISC231Q1.java). The arraylist will have 4 elements – 2 cubes (one with side length 3 and another will side length 4) and 2 spheres (one with radius 3 and another with radius 4). Create a driver class to instantiate an array of solids and display the details of each solid along with the volume of each solid.
Write a static method that draws an arrow line from astartingpoint to an ending point in a pane using the following method header:public static void drawArrowLine(double startX, double startY,double endX, double endY, Pane pane) Write a test program that randomly draws an arrow line, as shown in Figure.
A. Write static methods: public static double cubeVolume(double h) : h3 public static double cubeSurface(double h) : 6h² public static double cylinderVolume(double r, double h) : hnr2 public static double cylinderSurface(double r, double h) : 2rth + 2nr? that compute the volume and surface area of a cube with height h, and a cylinder with circular base with radius r and height h. Place them into a class named "Geometry.java". Then write a program with main class called "Lab7_yourID.java" that prompts the user for the values of r and h, calls the four methods, and prints the results. B. Reconsider your previous solution by implementing classes Cube, and Cylinaer separately instead of a single class "Geometry" (part A). Which approach is more object-oriented?
Please help to solve this codes. In Java public interface ShapesInterface{ public double getArea(); // This method returns the area of a 2 dimensional shape // or the surface are of a 3 dimensional shape. public double getVolume(); // This method returns the volume of a 3 dimensional shape // or 0 for a 2 dimensional shape. public void displayArea(); // This method displays the name of the shape and its area, // If the shape is 2 dimensional it displays the 2 dimensional area // If the shape is 3 dimensional it displays the surface area of the shape public void displayVolume(); // This method displays the name of the shape and its volume, // This method displays the volume of a 3 dimensional shape and 0 for a 2 dimensional shape. }
Write code for a Java class Rectangle with the following fields and methods: Rectangle width : double - height : double - area : double + perimeter : double + diagonal : double +Rectangle () : void + setRectangle (double w, double h) : void + printRectangle () : void + changeWidth (double w) : void + changeHeight (double h) : void static computeDiagonal (double w, double h) : double Fields Methods Methods: Rectangle: Constructor, creates a rectangle with width and height equal to zero. setRectangle: Sets the width and height equal to the two parameters. Computes and stores the rectangle area, perimeter and diagonal. printRectangle: Prints the width, height, area, perimeter and diagonal of the rectangle with labels. All values are printed with a maximum of 2 digits after the decimal. Extra Credit (+5): Include a visual representation of the rectangle: ##### #3 # #### Extra Credit (+2): Visual representation works with length of 1 for height and/or width. changeWidth: Changes the width…
In Java Write a class that has three overloaded static methods for calculating the areas of the following geometric shapes:• circles• rectangles• cylinders Here are the formulas for calculating the area of the shapes.Area of a circle: Area = πr2where π is Math.PI and r is the circle’s radiusArea of a rectangle: Area = Width x LengthArea of a cylinder: Area=5 πr2hwhere π is Math.PI, r is the radius of the cylinder’s base, andh is the cylinder’s heightBecause the three methods are to be overloaded, they should each have the same name, butdifferent parameter lists. Demonstrate the class in a complete program.