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#1
October 30th, 2012, 02:56 PM
 Shaun_B
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Join Date: Sep 2012
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Homework - Imperial weight conversions to kilograms.

Here's another homework-type question, converting UK pounds to the various imperial weights and finally to kilograms. Again, this probably isn't 100% perfect, but it does the job.
Java Code:
 Original - Java Code
```/** * This will convert imperial measurements relating to weight * to the metric equivalent. Please see * the methods at the bottom of the code to see how the * conversion is done. Note: Some of the calculations might * not be perfect when checked against an online calculator * but no online solution posted in a forum should be * considered perfect, so it's up to you to refine the code * if you think that is required. *  * @author: Shaun B * @version: 2012-10-29 **/import java.lang.Math;import java.util.Scanner;public class exerciseTwo{        // This is a constant available at a class level    private static final float kilosPerPound = (float) 0.45359;    // This is a class level variable (privately declared) which will be    // used within the main method and any other methods that require it:    private static int pounds = 0;    // This will read in our keyboard inputs via the Scanner utility:    private static Scanner keyboardInput = new Scanner(System.in);    // This will tell the main routine to continue running:    private static boolean run = true;    // Here is the main method, ie, where it runs from:    public static void main(String[] args)    {        System.out.println("This will demonstrate converting imperial weights (Pounds");        System.out.println("and ounces) to metric weights. Please enter the number of");        System.out.println("the number of pounds you wish to convert as a whole number");        System.out.println("or enter 0 (zero) to exit this demonstration.");        while(run)        {            System.out.print("C:\\>");            try            {                pounds = keyboardInput.nextInt();            }            catch(Exception e)            {                System.err.println("Illegal keyboard entry in main class");                run = false;                System.exit(0);            }            if(pounds == 0)            {                System.out.println("Goodbye!");                run = false;                break;            }            System.out.println("Here is the conversion:");            System.out.format("%d is %f ton(s)\n",pounds,tons(pounds));            System.out.format("%d is %f hundredweight\n",pounds,hundredWeight(pounds));            System.out.format("%d is %f quarter\n",pounds,quarter(pounds));            System.out.format("%d is %f stone\n",pounds,stone(pounds));            System.out.format("%d is %d ounces\n",pounds,ounces(pounds));            System.out.format("%d is %d drachm\n",pounds,drachm(pounds));            System.out.format("%d is %d grains\n",pounds,grain(pounds));            System.out.format("%d is %f kilograms\n",pounds,kilograms(pounds));        }        System.exit(0);    }    public static float tons(int x)    {        return (float)x/2240;    }    public static float hundredWeight(int x)    {        return (float)x/112;    }    public static float quarter(int x)    {        return (float)x/28;    }    public static float stone(int x)    {        return (float)x/14;    }    public static int ounces(int x)    {        return x*16;    }    public static int drachm(int x)    {        // A drachm is 1/256 pounds, so we can call the ounces        // method above and multiply that by 16, as 16 is the        // square root of 256:        return ounces(x)*16;    }    public static long grain(int x)    {        return (long)x*7000;    }    public static float kilograms(int x)    {        return (float)x*kilosPerPound;    }}
```

Feel free to ask any questions,

Shaun.

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