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Category
real language
Bookmarking
Language Java
(exception oriented)
| Date: | 09/08/05 |
| Author: | Jarek Ratajski |
| URL: | n/a |
| Comments: | 1 |
| Info: | http://java.sun.com |
| Score: |  (3.37 in 133 votes) |
/**
* 99 Bottles in Java - Exception Oriented Programming :-)
* This program abuses concept of exceptions.
* notice: it does not use any loops (for, while) or if statements
*
* use java 1.4 or newer
* @author Jarek Ratajski
*/
public class EOP99Bottles
{
/**
* this main method is very simple -
* only throws exception and prints stack trace
* would You suspect it is 99 bottles program ? :-)
*/
public static void main(String[] args)
{
try
{
throw new BottleException(1, null);
}
catch (Exception e)
{
e.printStackTrace();
}
}
private static class BottleException extends Exception
{
private final int cnt;
/**
* notice beauty of this signature: object that may throw exception of
* its own type during its creation !!!
*/
public BottleException(int i, BottleException c)
throws BottleException
{
super(c);
this.cnt = i;
try
{
int a = 03 / (99-i);
throw new BottleException(i+1, this);
}
catch (ArithmeticException e)
{
//deliberately
}
}
public void printStackTrace()
{
System.out.println(cnt+" Bottle(s) of beer on the wall,"+cnt+"bottle(s) of beer");
System.out.println("Take one down and pass it around,");
System.out.println((cnt-1)+" bottle(s) of beer on the wall");
try
{
getCause().printStackTrace();
}
catch (NullPointerException npe)
{
//deliberately
}
}
}
}
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Alternative Versions
| Version | Author | Date | Comments | Rate |
|---|---|---|---|---|
| object-oriented version | Anonymous | 04/20/05 | 14 | |
| bytecode-version with loader | Tilo Dickopp | 05/23/06 | 9 | |
| Java 5.0 object-oriented version | Kvols | 11/19/05 | 3 | |
| Singing with Java Speech API | Kevin Seifert | 05/04/06 | 1 | |
| standard version | Sean Russell | 04/20/05 | 10 | |
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Comments
public static final String BEER = " BOTTLES OF BEER";
public static final String BEER_WALL = BEER + " IN THE WALL";
public static void bottleCounter() {
for (int i = 99; i > 0
System.out.println(
i + BEER_WALL + ", " + i + BEER + "."
+ "TAKE ONE DOWN AND PASS IT ARROUND " + --i +
BEER_WALL);
}
}