How to convert?

Question

Write a program which asks the user to enter a number of meters and convert that value to miles, yards, feet, and inches. The conversion factor is 1 inch = 2.54 centimeters. Display your results to 2 decimal places. Declare constantsfor the conversion factorand other values a appropriate.

I try to make a reasoning on the result of the sample run that says 3610.9 meters, convert to miles, yards, feet, and inches. And this sample find the value that I can not find by using the conversion calculation. Example to calculate the conversion from 3610.9 meters to miles = 2, and for yards = 428, for feet = 2, and for inches = 9.42.

Answer 1

//* MetersToEnglish.java

class MetersToEnglish

{

public static final double CENTIMETERS_PER_INCH = 2.54;

public static final int INCHES_PER_FOOT = 12;

public static final int FEET_PER_YARD = 3;

public static final int YARDS_PER_MILE = 1760;

public static final int ROUND_TO_INCH = 16;

private InputOutputIO myIO;

MetersToEnglish()

{

myIO = new InputOutputIO();

}

public void Go()

{

long feet,yards,miles;

int inchFrac16;

double meters = myIO.promptForAmount(" Please input the # of meters :>");

feet=yards=miles=inchFrac16=0;

if (meters != 0)

{

double cm = meters*100;

double inches = cm / CENTIMETERS_PER_INCH;

System.out.println(" cenimeters = " + cm + " : inches = "+ inches);

long intInches = (long) (Math.floor(inches));

double fraction_of_inch = inches - intInches;

System.out.println(" intInches = " + intInches + " : fraction_of_inch = "+ fraction_of_inch);

for (int iLoop=0; iLoop<2; iLoop++)

{

feet = intInches/INCHES_PER_FOOT;

intInches = intInches % INCHES_PER_FOOT;

System.out.println(" feet = " + feet + " : inches = " + intInches);

yards = feet / FEET_PER_YARD;

feet = feet % FEET_PER_YARD;

System.out.println(" yards = " + yards + " : feet = " + feet);

miles = yards / YARDS_PER_MILE;

yards = yards % YARDS_PER_MILE;

System.out.println(" miles = " + miles + " : yards = " + yards);

inchFrac16 = InchFrac16(fraction_of_inch);

System.out.println( inchFrac16);

System.out.println(" rounds to full inch " + InchFrac16(0.9876));

if (inchFrac16 != ROUND_TO_INCH)

{

break; // does not have to round to next integer, so we're done

}

else

{

intInches++;

fraction_of_inch = 0;

}

} //for loop

System.out.println(" miles : "+ miles);

System.out.println(" yards : "+ yards);

System.out.println(" feet : " + feet );

System.out.println(" inches : " + intInches + " & " + inchFrac16 + "\\16");

}

}

public int InchFrac16( double fracInch )

{

double [] fractionsOfInch = { 0.0625, 0.125, 0.1875, 0.25,0.3125,0.375,0.4375, 0.5, 0.5625, 0.625, 0.6875, 0.75,0.8125,0.875,0.9375 };

int iLoop=-1;

int iReturn = 0;

if (fracInch != 0)

{

boolean found_flag = false;

for (iLoop=0; iLoop<15; iLoop++)

{

if (fractionsOfInch[iLoop]>fracInch)

{

found_flag = true;

break;

}

}

iReturn = iLoop+1;

}

return (iReturn);

}

public static void main (String args[])

{

MetersToEnglish myConverter = new MetersToEnglish();

myConverter.Go();

}

}

//* InputOutputIO.java

import java.io.*;

public class InputOutputIO

{

private Console console;

private boolean input_error_flag;

InputOutputIO()

{

console = System.console();

input_error_flag = false;

}

public String promptForString( String promptMsg)

{

String inbuff;

input_error_flag = false;

System.out.println("**************************************");

System.out.print(promptMsg);

try

{

inbuff = console.readLine();

}

catch (Exception ex)

{

inbuff = null;

input_error_flag = true;

System.out.println(" Input exception error has occured ");

}

return(inbuff);

}

public long promptForInteger( String promptMsg)

{

input_error_flag = false;

String inbuff = this.promptForString(promptMsg);

if (inbuff != null)

{

return(Long.parseLong(inbuff));

}

else

{

return(0);

}

}

public double promptForAmount( String promptMsg)

{

input_error_flag = false;

String inbuff = this.promptForString(promptMsg);

if (inbuff != null)

{

return(Double.parseDouble(inbuff));

}

else

{

return(0);

}

}

public static void main( String args[])

{

InputOutputIO myIO = new InputOutputIO();

String nameStr = myIO.promptForString(" What is your name ??? :>");

long longIntNum = myIO.promptForInteger(" Please input an integer :> ");

double dblFlAmt = myIO.promptForAmount(" Please input an amount :> ");

System.out.println(" Hello " + nameStr);

System.out.println(" long int # = " + longIntNum);

System.out.println(" amount = "+ dblFlAmt );

}

}