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  1. import java.util.Scanner;
  2.  
  3. public class DavisStevenscanners
  4. {
  5.    public static void main(String[] args)
  6.    {
  7.       Scanner stdIn = new Scanner(System.in);
  8.       double manufacturer;
  9.       double inRadius;
  10.       double outRadius;
  11.       double density;
  12.       double smallCircumference;
  13.       double bigCircumference;
  14.       double surfaceArea;
  15.       double volume;
  16.       double crossArea;
  17.       double weight;
  18.       String ymanufacturer;
  19.       String sCircumference;
  20.       String bCircumference;
  21.       String sArea;
  22.       String vol;
  23.       String cArea;
  24.       String wght;
  25.  
  26.             System.out.println("Please enter the doughnuts manufacturer?:");
  27.             manufacturer=stdIn.nextDouble();
  28.             System.out.println("Please enter the internal radius of the doughnut in inches?:");
  29.             inRadius=stdIn.nextDouble();
  30.             System.out.println("Please enter the external radius of the doughnut in inches?:");
  31.             outRadius=stdIn.nextDouble();
  32.             System.out.println("Please enter the density of the doughnut?:");
  33.             density=stdIn.nextDouble();
  34.  
  35.             ymanufacturer="Your doughnut has the following dimensions from manufacture:"+manufacturer;
  36.             System.out.println(ymanufacturer);
  37.             sCircumference="The small circumference is:"+(2*3.14159265359*inRadius);
  38.             System.out.println(sCircumference);
  39.             bCircumference="The big circumference is:"+(2*3.14159265359*outRadius);
  40.             System.out.println(bCircumference);
  41.             sArea="The Surface area is:"+Math.pow(3.14159265359,2)*Math.pow(outRadius,2)-Math.pow(inRadius,2);
  42.             System.out.println(sArea);
  43.             vol="The Volume is:"+Math.pow(3.14159265359,2)*(inRadius+outRadius)*Math.pow(outRadius-inRadius,2)/4;
  44.             System.out.println(vol);
  45.             cArea="The Cross area is:"+(3.14159265359*Math.pow(outRadius-inRadius,2)/4);
  46.             System.out.println(cArea);
  47.             wght="The Weight is:"+(0.03609485*density*volume);
  48.             System.out.println(wght);
  49.            }
  50. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:3: error: class DavisStevenscanners is public, should be declared in a file named DavisStevenscanners.java
public class DavisStevenscanners
       ^
Main.java:41: error: bad operand types for binary operator '-'
            sArea="The Surface area is:"+Math.pow(3.14159265359,2)*Math.pow(outRadius,2)-Math.pow(inRadius,2);
                                                                                        ^
  first type:  String
  second type: double
2 errors
stdout
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Standard output is empty
https://ideone.com/7tcgMQ
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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