Question

Write in JAVA eclipse program (comment in every line):

class for calculating an area of a room. The program MUST ask for the length and the width of the room.

Make sure you write the methods to get the width and length and print the area.

Answer 1

Please find below code in java and don't forget to give a Like.

Please refer below screenshot for code and output.

Code:

import java.util.Scanner;//importing scanner to take input from user
public class Main
{
   public static void main(String[] args) {
   double area;//taking all varibles datatype as double
   double length,width;
   //calling length method that takes input
   //method returns lenght value from user and store in length variable
   length=length();
   //calling width function and storing in width variable
   width=width();
   //calculating area by multiplying both
   area=length*width;
   //calling print method to print the area
   print(area);
   }
   //creating a length method of type double since it returns double value
   public static double length(){
   //creating a input varible and will be using it to take input
   Scanner input=new Scanner(System.in);
   System.out.print("Enter the length of the room: ");
   //this this take the input from user and store it in lenght varible
   double length=input.nextDouble();
   //returning length to main
   return length;
   }
   //this is same as above length method
   public static double width(){
   Scanner input=new Scanner(System.in);
   System.out.print("Enter the width of the room: ");
   double width=input.nextDouble();
   return width;
   }
   //method print will take double value as argument and print the area
   public static void print(double area){
   //this statement prints the output
   System.out.println("Area of the room: "+area);
   }
}

Output and screenshot: