Answered: Write static methods: public static…

Engineering

Computer Science

Write static methods: public static double cubeVolume(double h) : h^3 public static double cubeSurface(double h)

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 1GZ

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Concept explainers

Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.

Question

Write static methods: public static double cubeVolume(double h) : h^3 public static double cubeSurface(double h) : 6h^2 public static double cylinderVolume(double r, double h) : hπr^2 public static double cylinderSurface(double r, double h) : 2rπh+2πr^2 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. (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?

Area of Plane Shapes
Area is the size of a surface!
Learn more about Area, or try the Area Calculator.
Triangle
Square
Area = 2 x b x h
a
Area = a?
b = base
h = vertical height
a = length of side
Rectangle
Parallelogram
Area = w x h
Area = b x h
w = width
h = height
b = base
h = vertical height
Circle
Trapezoid (US)
Trapezium (UK).
Area = 2(a+b) × h
h = vertical height
a
Area = T x r2
th
Circumference = 2 x Xr
r = radius
Sector
Area = 2 x r² x e
r = radius
e = angle in radians
Ellipse
Area = nab
Note: h is at right angles to b: h

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