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CoursesCSC122โปรแกรมหาพื้นที่ผิวและปริมาตรลูกบาศก์ทรงสี่เหลี่ยม

โปรแกรมหาพื้นที่ผิวและปริมาตรลูกบาศก์ทรงสี่เหลี่ยม

โจทย์

Write a class of cuboid having the following requirements:

3 Attributes:

  • double width
  • double height
  • double length

2 Constructors:

  • First constructor is a default constructor having no parameters. The default construct will assign a value of width, height, and length of 1.
  • The second constructor is a constructor that accepts 3 inputs which are width, height, and length. When an object is created from this constructor, attribute of width, height, and length is assigned according the inputs.

2 Methods:

  • getVolumn() This method calculate volume of cuboid and return volume of type double as an output.
  • getSurface()This method calculate surface area of cuboid and return surface of type double as an output.

Hint:

  1. Use double as datatype for number data.
  2. Volume formula: width * height * length
  3. Surface formula: 2(width * height) + 2(width * length) + 2(height * length)
  4. The driver class is provided in the answer box. Please do not modify the driver class, otherwise your output may be corrupted.
InputOutput
11.0
6.0
2
3.0 4.5 5.5		74.25
109.5

โค้ดเริ่มต้น

import java.util.Scanner;
public class CuboidTester{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int opt = sc.nextInt();
        if(opt==1){
            Cuboid c = new Cuboid();
            System.out.println(c.getVolumn());
            System.out.println(c.getSurface());
        }
        else{
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            double z = sc.nextDouble();
            Cuboid c = new Cuboid(x,y,z);
            System.out.println(c.getVolumn());
            System.out.println(c.getSurface());
        }
 
    }
}
 
class Cuboid {
    //put your code here
}

โค้ด

import java.util.Scanner;
public class CuboidTester{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int opt = sc.nextInt();
        if(opt==1){
            Cuboid c = new Cuboid();
            System.out.println(c.getVolumn());
            System.out.println(c.getSurface());
        }
        else{
            double x = sc.nextDouble();
            double y = sc.nextDouble();
            double z = sc.nextDouble();
            Cuboid c = new Cuboid(x,y,z);
            System.out.println(c.getVolumn());
            System.out.println(c.getSurface());
        }
 
    }
}
 
class Cuboid {
    double width;
    double height;
    double length;
 
    public Cuboid() {
        this.width = 1;
        this.height = 1;
        this.length = 1;
    }
 
    public Cuboid(double width, double height, double length) {
        this.width = width;
        this.height = height;
        this.length = length;
    }
 
    public double getVolumn() {
        return width * height * length;
    }
 
    public double getSurface() {
        return 2 * (width * length) + 2 * (width * height) + 2 * (length * height);
    }
}

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