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"Small" Program Challenge.

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  "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-13 13:45 -0700
    Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-13 13:52 -0700
      Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-13 16:17 -0700
        Re: "Small" Program Challenge. glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-06-14 00:16 +0000
      Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-13 16:19 -0700
        Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-13 16:24 -0700
      Re: "Small" Program Challenge. markspace <-@.> - 2012-06-13 17:40 -0700
    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-13 21:28 -0400
    Re: "Small" Program Challenge. Roedy Green <see_website@mindprod.com.invalid> - 2012-06-13 20:52 -0700
      Re: "Small" Program Challenge. "Hiram Hunt" <hiramhunt@verizon.net> - 2012-06-14 08:23 -0400
        Re: "Small" Program Challenge. "Hiram Hunt" <hiramhunt@verizon.net> - 2012-06-14 08:30 -0400
      Re: "Small" Program Challenge. Arne Vajhøj <arne@vajhoej.dk> - 2012-06-17 21:17 -0400
    Re: "Small" Program Challenge. Paul Cager <paul.cager@googlemail.com> - 2012-06-14 02:32 -0700
    Re: "Small" Program Challenge. Bent C Dalager <bcd@pvv.ntnu.no> - 2012-06-14 11:29 +0000
    Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 12:50 -0700
    Re: "Small" Program Challenge. Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-06-14 15:49 -0500
    Re: "Small" Program Challenge. Gene Wirchenko <genew@ocis.net> - 2012-06-14 14:56 -0700
    Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 17:02 -0700
    Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-14 17:09 -0700
    Re: "Small" Program Challenge. Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2012-06-15 22:13 -0700
      Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-16 12:11 -0700
    Re: "Small" Program Challenge. Wanja Gayk <brixomatic@yahoo.com> - 2012-06-17 15:22 +0200
      Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-17 15:24 -0700
        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-17 18:25 -0400
          Re: "Small" Program Challenge. Arne Vajhøj <arne@vajhoej.dk> - 2012-06-17 20:31 -0400
            Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-17 20:55 -0400
              Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-17 20:40 -0700
                Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-17 23:43 -0400
                Re: "Small" Program Challenge. Lew <noone@lewscanon.com> - 2012-06-17 21:25 -0700
                  Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 00:45 -0400
                    Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 12:47 -0700
                      Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 15:57 -0400
                        Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 13:31 -0700
                          Re: "Small" Program Challenge. Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-06-18 16:05 -0500
                            Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 14:18 -0700
                              Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 19:50 -0400
                          Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 19:48 -0400
                            Re: "Small" Program Challenge. David Lamb <dalamb@cs.queensu.ca> - 2012-06-19 08:07 -0400
                              Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 15:26 -0400
                  Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-18 09:04 -0700
                    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 13:09 -0400
                      Re: "Small" Program Challenge. markspace <-@.> - 2012-06-18 11:06 -0700
                        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 14:46 -0400
                          Re: "Small" Program Challenge. markspace <-@.> - 2012-06-18 13:22 -0700
                            Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 19:51 -0400
                        Re: "Small" Program Challenge. Wanja Gayk <brixomatic@yahoo.com> - 2012-06-20 13:11 +0200
                          Re: "Small" Program Challenge. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-06-22 12:54 -0700
                            Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-22 18:30 -0400
                              Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-25 12:59 -0700
                                Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-25 16:49 -0400
                    Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 12:44 -0700
                      Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 16:01 -0400
                        Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 13:36 -0700
                          Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 20:01 -0400
                            Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-18 18:25 -0700
                              Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 22:01 -0400
                              Re: "Small" Program Challenge. Gene Wirchenko <genew@ocis.net> - 2012-06-18 19:04 -0700
                                Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-18 22:12 -0400
                                  Re: "Small" Program Challenge. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-06-19 12:36 +0000
                                    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 15:28 -0400
                                  Re: "Small" Program Challenge. Gene Wirchenko <genew@ocis.net> - 2012-06-19 09:12 -0700
                                    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 15:30 -0400
                                      Re: "Small" Program Challenge. Gene Wirchenko <genew@ocis.net> - 2012-06-19 15:04 -0700
                                        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 18:23 -0400
                                          Re: "Small" Program Challenge. Gene Wirchenko <genew@ocis.net> - 2012-06-19 15:32 -0700
                                            Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 19:09 -0400
                                          Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 19:10 -0400
                                      Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-19 17:19 -0700
                                        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 20:42 -0400
                                          Re: "Small" Program Challenge. Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-06-19 20:01 -0500
                                            Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-19 21:12 -0400
                                              Re: "Small" Program Challenge. Leif Roar Moldskred <leifm@dimnakorr.com> - 2012-06-19 20:32 -0500
                                                Re: "Small" Program Challenge. Lew <noone@lewscanon.com> - 2012-06-19 22:01 -0700
                                                  Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-20 21:15 -0400
                                                Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-20 21:05 -0400
                                                  Re: "Small" Program Challenge. Wanja Gayk <brixomatic@yahoo.com> - 2012-06-23 13:42 +0200
                                                    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-23 12:12 -0400
                                                      Re: "Small" Program Challenge. Wanja Gayk <brixomatic@yahoo.com> - 2012-06-23 23:10 +0200
                                                        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-23 17:14 -0400
                                            Re: "Small" Program Challenge. Lew <noone@lewscanon.com> - 2012-06-19 22:15 -0700
                                              Re: "Small" Program Challenge. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-06-20 10:34 +0000
                                                Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-20 10:45 -0700
                                                  Re: "Small" Program Challenge. Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2012-06-21 08:13 +0000
                                                    Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-21 17:18 -0400
                                                      Re: "Small" Program Challenge. Lew <lewbloch@gmail.com> - 2012-06-21 15:30 -0700
                                                        Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-21 20:28 -0400
                                                Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-20 21:22 -0400
                                              Re: "Small" Program Challenge. "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2012-06-20 21:19 -0400

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#15252 — "Small" Program Challenge.

I saw a challenge Roedy posted on cljh, and I thought I might have a 
slightly more interesting one.

Write a Java program which outputs "Hello World" followed by a new line 
(and nothing else).

Now, do it using as few characters in the .java source code as possible.

I've got mine down to 61 characters. See if you can match that.

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#15253

On 6/13/12 1:45 PM, Daniel Pitts wrote:
> I saw a challenge Roedy posted on cljh, and I thought I might have a
> slightly more interesting one.
>
> Write a Java program which outputs "Hello World" followed by a new line
> (and nothing else).
>
> Now, do it using as few characters in the .java source code as possible.
>
> I've got mine down to 61 characters. See if you can match that.

Hint, the following is 82 characters, if you remove line wrapping. Where 
do I trim the 21 characters?

"class M{public static void main(String[]args){System.out.println("Hello 
World");}}"

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#15258

On 6/13/12 2:06 PM, Stefan Ram wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>>> Write a Java program which outputs "Hello World" followed by a new line
> (...)
>> "class M{public static void main(String[]args){System.out.println("Hello World");}}"
>
>    »System.out.println("Hello World");« does not output "Hello
>    World" followed by a new line, but "Hello World" followed by
>    the line separator string. The line separator string is
>    defined by the system property line.separator, and is not
>    necessarily a single newline character ('\n').
>
I didn't say a "new line" character. However, print("Hello World\n") is 
the same length.  My intent was line separator, however if you choose to 
interpret it the other way, there is no benefit or penalty.

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#15261

Daniel Pitts <newsgroup.nospam@virtualinfinity.net> wrote:

(snip)
> I didn't say a "new line" character. However, print("Hello World\n") is 
> the same length.  My intent was line separator, however if you choose to 
> interpret it the other way, there is no benefit or penalty.

Note that there is no requirement that the host system even use
a newline character. There are systems that keep track of lines
by length. 

Now, the C tradition of using '\n' as a line terminator, even
on systems that don't store files that way, isn't completely gone
in Java. Writing a "\n" will likely generate a new line even on
systems that don't use a newline character.

-- glen

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#15259

On 6/13/12 2:29 PM, Stefan Ram wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>> Where do I trim the 21 characters?
>
>    You can trim the »args« to »a«.
Ah, yes. That was just habit on my part.

> Possibly, some earlier JDKs allowed
>    omission of the main method, but a recent JDK seems to require it.
>

The JDK doesn't require anything of a class.  java on the other hand 
goes through a specific sequence when asked to "run" a Java program.

My smallest program is still 61 characters long, the example I posted, 
after replacing args with a, is 79.

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#15260

On 6/13/12 4:19 PM, Daniel Pitts wrote:
> On 6/13/12 2:29 PM, Stefan Ram wrote:
>> Daniel Pitts<newsgroup.nospam@virtualinfinity.net> writes:
>>> Where do I trim the 21 characters?
>>
>> You can trim the »args« to »a«.
> Ah, yes. That was just habit on my part.
>
>> Possibly, some earlier JDKs allowed
>> omission of the main method, but a recent JDK seems to require it.
>>
>
> The JDK doesn't require anything of a class. java on the other hand goes
> through a specific sequence when asked to "run" a Java program.
Ah, although now I see reports that Java 7 does some validation before 
some of that sequence.  So, my 61 character source compiles fine, but 
won't run on Java 7.

I wonder why they bothered.

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#15262

On 6/13/2012 1:52 PM, Daniel Pitts wrote:
> On 6/13/12 1:45 PM, Daniel Pitts wrote:
>> I saw a challenge Roedy posted on cljh, and I thought I might have a
>> slightly more interesting one.
>>
>> Write a Java program which outputs "Hello World" followed by a new line
>> (and nothing else).
>>
>> Now, do it using as few characters in the .java source code as possible.
>>
>> I've got mine down to 61 characters. See if you can match that.
>
> Hint, the following is 82 characters, if you remove line wrapping. Where
> do I trim the 21 characters?
>
> "class M{public static void main(String[]args){System.out.println("Hello
> World");}}"


This is a good one, although the options for really trimming things down 
in surprising ways is absent in Java.

Another good one is to write a Java program that prints its own source 
text.  No fair using an external file, of course.

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#15263

On 13/06/2012 4:45 PM, Daniel Pitts wrote:
> I saw a challenge Roedy posted on cljh, and I thought I might have a
> slightly more interesting one.
>
> Write a Java program which outputs "Hello World" followed by a new line
> (and nothing else).
>
> Now, do it using as few characters in the .java source code as possible.
>
> I've got mine down to 61 characters. See if you can match that.

class X{static{System.out.println("Hello World");for(;;);}}

is 59 characters.

Hey, you didn't say it has to actually *terminate*! ;)

-- 
public final class JSnarker
extends JComponent
A JSnarker is an NNTP-aware component that asynchronously provides 
snarky output when the Ego.needsPuncturing() event is fired in cljp.

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#15266

On Wed, 13 Jun 2012 13:45:18 -0700, Daniel Pitts
<newsgroup.nospam@virtualinfinity.net> wrote, quoted or indirectly
quoted someone who said :

>
>I've got mine down to 61 characters. See if you can match that.

 here's the obvious solution at 88 chars: 

public class C{public static void main(String[]
a){System.out.println("Hello World");}}

-- 
Roedy Green Canadian Mind Products
http://mindprod.com
Controlling complexity is the essence of computer programming.
~ Brian W. Kernighan 1942-01-01
.

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#15275

"Roedy Green" <see_website@mindprod.com.invalid> wrote in message 
news:jqnit7pv9phoig3t2il0s4jf4s19ot7p3i@4ax.com...
> On Wed, 13 Jun 2012 13:45:18 -0700, Daniel Pitts
> <newsgroup.nospam@virtualinfinity.net> wrote, quoted or indirectly
> quoted someone who said :
>
>>
>>I've got mine down to 61 characters. See if you can match that.
>
> here's the obvious solution at 88 chars:
>
> public class C{public static void main(String[]
> a){System.out.println("Hello World");}}

No need for public on class.

-- Hiram Hunt (hiramhunt@verizon.net) 

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#15276

"Hiram Hunt" <hiramhunt@verizon.net> wrote in message 
news:4fd9d7d1$0$1727$c3e8da3$aae71a0a@news.astraweb.com...
>
> "Roedy Green" <see_website@mindprod.com.invalid> wrote in message 
> news:jqnit7pv9phoig3t2il0s4jf4s19ot7p3i@4ax.com...
>> On Wed, 13 Jun 2012 13:45:18 -0700, Daniel Pitts
>> <newsgroup.nospam@virtualinfinity.net> wrote, quoted or indirectly
>> quoted someone who said :
>>
>>>
>>>I've got mine down to 61 characters. See if you can match that.
>>
>> here's the obvious solution at 88 chars:
>>
>> public class C{public static void main(String[]
>> a){System.out.println("Hello World");}}
>
> No need for public on class.
>
> -- Hiram Hunt (hiramhunt@verizon.net)

Sorry,  I think I missed your point that this was just the obvious
solution.  Other posts are already public-less on class.

-- Hiram Hunt (hiramhunt@verizon.net) 

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#15369

On 6/13/2012 11:52 PM, Roedy Green wrote:
> On Wed, 13 Jun 2012 13:45:18 -0700, Daniel Pitts
> <newsgroup.nospam@virtualinfinity.net> wrote, quoted or indirectly
> quoted someone who said :
>
>>
>> I've got mine down to 61 characters. See if you can match that.
>
>   here's the obvious solution at 88 chars:
>
> public class C{public static void main(String[]
> a){System.out.println("Hello World");}}

Daniel already posted the obvious solution.

Arne

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#15271

On Jun 13, 9:45 pm, Daniel Pitts
<newsgroup.nos...@virtualinfinity.net> wrote:
> I saw a challenge Roedy posted on cljh, and I thought I might have a
> slightly more interesting one.
>
> Write a Java program which outputs "Hello World" followed by a new line
> (and nothing else).
>
> Now, do it using as few characters in the .java source code as possible.
>
> I've got mine down to 61 characters. See if you can match that.

You may also find some of the challenges on http://codegolf.stackexchange.com/
interesting.

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#15274

On 2012-06-13, Daniel Pitts <newsgroup.nospam@virtualinfinity.net> wrote:
> I saw a challenge Roedy posted on cljh, and I thought I might have a 
> slightly more interesting one.
>
> Write a Java program which outputs "Hello World" followed by a new line 
> (and nothing else).
>
> Now, do it using as few characters in the .java source code as possible.

How much are you permitted to offload to the launcher?

Trivial example of offloading:

class A{public static void main(String[] a){System.out.print(a[0]);}}
(69 chars)

with launch instructions:

run like this (bash command line example shown, other launch
environments will have other ways of expressing the newline)

$ java A "Hello World
> "
$ 


And how much can you offload to a hypothetical "library" function that
just happens to do exactly what you want?

class B{public static void main(String[] a){L.f();}}
(52 chars)

Cheers,

Bent.
-- 
Bent Dalager - bcd@pvv.org - http://www.pvv.org/~bcd
                                    powered by emacs

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#15291

On 6/14/12 11:04 AM, Stefan Ram wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>> I've got mine down to 61 characters. See if you can match that.
>
>    Here is a new variant of the above challenge:
>
>    Write a java program (source code) with less than 4000
>    characters and a java command line with less than 1000
>    characters that writes »Hello World« followed by a newline
>    character and nothing else, but does so in a somewhat
>    surprising or unusual way.
>
>    My entry:
>
> public class Main
> { public static void main( final java.lang.String[] args )
>    { System.out.println(); System.out.print( '\n' ); }}
>
> java -Dline.separator="Hello World" Main
>

A slightly obfuscated program which illustrates a few surprising things.

public class Hello {
     static Object left = "Top", right = "Bottom";
     static Object top = "Left";
     static Object bottom = "Right";

     public static void main(String[] args) throws Exception {
         for (int i = 0; i < 2; ++i) {
             s.out.print(new Hello());
             y(left, right, top, bottom);
         }
     }

     public String toString() {
         try {
             top = "value";
             bottom = "count";
             return "enumeration" + top + bottom;
         } finally {
             return getClass().getName();
         }
     }

     static <T extends java.lang.reflect.AccessibleObject> T t(T t) { 
t.setAccessible(true); return t;}

     static <T> void y(T l, T r, T... os) throws Exception {
         for (Object o : os) {
             x(l, o).set(l, x(l, o).get(r));
         }
     }

     private static java.lang.reflect.Field x(Object l, Object o) throws 
NoSuchFieldException {
         return t(l.getClass().getDeclaredField(o.toString()));
     }

     {
         left = toString();
         right = " W" + b + 'r' + a + "d\n";
     }

     static Object a = "l";
     static Object b = "o";
     static System s;
}

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#15295

Stefan Ram <ram@zedat.fu-berlin.de> wrote:
> Daniel Pitts <newsgroup.nospam@virtualinfinity.net> writes:
>>I've got mine down to 61 characters. See if you can match that.
> 
>  Here is a new variant of the above challenge:
> 
>  Write a java program (source code) with less than 4000
>  characters and a java command line with less than 1000
>  characters that writes »Hello World« followed by a newline
>  character and nothing else, but does so in a somewhat
>  surprising or unusual way.
> 
>  My entry:
> 
> public class Main
> { public static void main( final java.lang.String[] args )
>  { System.out.println(); System.out.print( '\n' ); }}
> 
> java -Dline.separator="Hello World" Main
> 

Well, mine doesn't have the same compactness, but here goes.
Run with plain "java HW":


import java.io.PrintStream;
import java.math.BigInteger;

public class HW {
  static boolean debug = false;
  final static  Long l_44 = 044L;

  public static void main(String[] args) {
    if( debug&doDebugLogging() ) {
      System.out.println( "World hello!" );
    }
							
    long ll1 = 42068934;
    long ll2 = 12834282;

    System.out.print(ll1++-ll2);
    System.out.print( " " );
    System.out.println(ll1+++ll2);
  }

  private static boolean doDebugLogging( ) {
    System.setOut( new PrintStream( System.out ) {
      public void print( long l ) { 
        print( BigInteger.valueOf( l ).toString(l_44.intValue()) ); 
      }
      public void print( String s ) {
        super.print( s.toUpperCase().charAt(0) + s.substring(1) );
      } });		   
    return false;
  }	
}

-- 
Leif Roar Moldskred

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#15296

On 14 Jun 2012 18:04:46 GMT, ram@zedat.fu-berlin.de (Stefan Ram)
wrote:

>Daniel Pitts <newsgroup.nospam@virtualinfinity.net> writes:
>>I've got mine down to 61 characters. See if you can match that.
>
>  Here is a new variant of the above challenge:
>
>  Write a java program (source code) with less than 4000
>  characters and a java command line with less than 1000
>  characters that writes »Hello World« followed by a newline
>  character and nothing else, but does so in a somewhat
>  surprising or unusual way.
>
>  My entry:
>
>public class Main
>{ public static void main( final java.lang.String[] args )
>  { System.out.println(); System.out.print( '\n' ); }}
>
>java -Dline.separator="Hello World" Main

     The IOCCC (International Obfuscated C Code Contest) has been
running yearly for twenty years.  Is someone trying to start an IOJJJ
(International Obfuscated Java Jungle of Junk?)?

Sincerely,

Gene Wirchenko

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#15297

On 6/14/12 11:04 AM, Stefan Ram wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>> I've got mine down to 61 characters. See if you can match that.
>
>    Here is a new variant of the above challenge:
>
>    Write a java program (source code) with less than 4000
>    characters and a java command line with less than 1000
>    characters that writes »Hello World« followed by a newline
>    character and nothing else, but does so in a somewhat
>    surprising or unusual way.
>
>    My entry:
>
> public class Main
> { public static void main( final java.lang.String[] args )
>    { System.out.println(); System.out.print( '\n' ); }}
>
> java -Dline.separator="Hello World" Main
>
Another lesson: Exceptions, and the deprecated (and highly dangerous) 
Thread.stop(Throwable) method.

import java.awt.EventQueue;
import java.io.PrintStream;
import java.lang.reflect.InvocationTargetException;

public class Hello extends Exception {
     public static void main(String[] args) throws Exception {
         Thread.setDefaultUncaughtExceptionHandler(
           new Thread.UncaughtExceptionHandler() {
             public void uncaughtException(Thread t, Throwable e) {
                 e.printStackTrace(System.out);
             }
         });
         final Thread thread = Thread.currentThread();
         EventQueue.invokeAndWait(new Runnable() {
             public void run() {
                 thread.stop(new Hello());
             }
         });
     }

     public void printStackTrace(PrintStream s) {
         s.print("Hello World");
     }
}

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#15298

On 6/14/12 11:04 AM, Stefan Ram wrote:
> Daniel Pitts<newsgroup.nospam@virtualinfinity.net>  writes:
>> I've got mine down to 61 characters. See if you can match that.
>
>    Here is a new variant of the above challenge:
>
>    Write a java program (source code) with less than 4000
>    characters and a java command line with less than 1000
>    characters that writes »Hello World« followed by a newline
>    character and nothing else, but does so in a somewhat
>    surprising or unusual way.
>
>    My entry:
>
> public class Main
> { public static void main( final java.lang.String[] args )
>    { System.out.println(); System.out.print( '\n' ); }}
>
> java -Dline.separator="Hello World" Main
>
Any one more:
enum Hello{Hello,World;public static void 
main(String[]a){System.out.println(String.valueOf(java.util.Arrays.asList(values())).replaceAll("\\p{Punct}",""));}}

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#15322

In article <zZ6Cr.4514$v14.839@newsfe06.iad>,
 Daniel Pitts <newsgroup.nospam@virtualinfinity.net> wrote:

> I saw a challenge Roedy posted on cljh, and I thought I might have a 
> slightly more interesting one.
> 
> Write a Java program which outputs "Hello World" followed by a new line 
> (and nothing else).
> 
> Now, do it using as few characters in the .java source code as possible.
> 
> I've got mine down to 61 characters. See if you can match that.

Without putting "Hello World" in the environment or using assembly:

class A{static{System.out.println("Hello World");System.exit(0);}}
-- 
I will not see posts from Google because I must filter them as spam

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