Question

******** IN JAVA *********

I have a program that I need help debugging. This program should ask a user to input 3 dimensions of a rectangular block (length, width, and height), and then perform a volume and surface area calculation and display the results of both. It should only be done using local variables via methods and should have 4 methods: getInput, volBlock, saBlock, and display (should be void). I have most of it written here:

import java.util.*;
public class Block {

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String choice = "Y";
while (choice.equals("Y")){
getInput();
  
System.out.println("Would you like to do another calculation?(Y/N): ");
choice = in.next().toUpperCase();
}
System.out.println("Program now ending...");
}
public static void getInput(){
double l, w, h;
Scanner fin = new Scanner(System.in);
System.out.println("Please enter the length, width, and height in that order: ");
l = fin.nextDouble();
w = fin.nextDouble();
h = fin.nextDouble();
  
volBlock(l, w, h);
surfaceAreaBlock(l,w,h);
}
public static double volBlock(double length, double width, double height){
double volume;
  
volume = length * width * height;
display(volume);
return volume;
}
  
public static double surfaceAreaBlock (double l, double w, double h){
double surfaceArea;
  
surfaceArea = 2 * (l*h+l*w+h*w);
  
display(surfaceArea);
return surfaceArea;
}
  
public static void display(double output) {
System.out.println("Volume = " + output);
System.out.println("Surface Area = " + output);
}
}

Special requirements: the getInput method should be used to return 1 double input. It should be called 3 times for length, width, and height respectively.

Answer 1

Block.java :

//import package
import java.util.*;
//Java class
public class Block {
   //main() method
   public static void main(String[] args) {
       //Object of Scanner class
       Scanner in = new Scanner(System.in);
       String choice = "Y";//variable used to store user input
       while (choice.equals("Y")) {
           double l, w, h;//declaring variables
           double volume,surfaceArea;//variables used to store volume and surfaceArea
           l=getInput("Enter length");//method call to take length from user
           w=getInput("Enter Width");//method call to take width from user
           h=getInput("Enter Height");//method call to take height from user
           //call method to calculate volume of block
           volume=volBlock(l, w, h);
           //call method to calculate surface area of block
           surfaceArea=surfaceAreaBlock(l, w, h);
           //call display() method
           display(volume, surfaceArea);
           //asking user whether want to have another calculation
           System.out.println("Would you like to do another calculation?(Y/N): ");
           choice = in.next().toUpperCase();//reading user input and converting to upper case
       }
       //show message when program ends
       System.out.println("Program now ending...");
   }
   //method to get input from user
   public static double getInput(String input) {
       double inputParam;//declaring variable
       Scanner fin = new Scanner(System.in);
       System.out.print("Please "+input+" : ");
       inputParam=fin.nextDouble();//reading input
       return inputParam;//return input      
   }
   //method to calculate volume of block
   public static double volBlock(double length, double width, double height) {
       double volume;
       //calculate volume
       volume = length * width * height;
       return volume;//return volume
   }
   //method to calculate surface area of block
   public static double surfaceAreaBlock(double l, double w, double h) {
       double surfaceArea;
       //calculate surface Area
       surfaceArea = 2 * (l * h + l * w + h * w);
       //return surface Area
       return surfaceArea;
   }
   //method to display details
   public static void display(double volume,double surfaceArea) {
       System.out.println("Volume = " + volume);//print volume
       System.out.println("Surface Area = " + surfaceArea);//print surface area
   }
}

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Output :