Comments on: Beginner Java Exercise with Data Types http://blog.tmorris.net/beginner-java-exercise-with-data-types/ The weblog of Tony Morris Sat, 19 May 2012 02:29:48 +0000 http://wordpress.org/?v=2.6 By: Tony Morris http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-89740 Tony Morris Tue, 31 May 2011 23:01:32 +0000 http://blog.tmorris.net/?p=760#comment-89740 Works fine for me dude. <pre> $ javac -J-version && md5sum NoneOrOne.java && javac NoneOrOne.java && date java version "1.6.0_25" Java(TM) SE Runtime Environment (build 1.6.0_25-b06) Java HotSpot(TM) 64-Bit Server VM (build 20.0-b11, mixed mode) d1bdc0922337ec3075142f2b4549eeaf NoneOrOne.java Wed Jun 1 09:01:03 EST 2011 </pre> Works fine for me dude.

$ javac -J-version && md5sum NoneOrOne.java && javac NoneOrOne.java && date
java version "1.6.0_25"
Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
Java HotSpot(TM) 64-Bit Server VM (build 20.0-b11, mixed mode)
d1bdc0922337ec3075142f2b4549eeaf  NoneOrOne.java
Wed Jun  1 09:01:03 EST 2011
]]> By: israel http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-89737 israel Tue, 31 May 2011 22:36:35 +0000 http://blog.tmorris.net/?p=760#comment-89737 when I run this program by a eclipse it does not work properly. that means it throws the error. when I run this program by a eclipse it does not work properly. that means it throws the error.

]]> By: Andreas http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-46001 Andreas Fri, 17 Sep 2010 16:21:39 +0000 http://blog.tmorris.net/?p=760#comment-46001 While I was a bit playing with the code I determined another optimization for the toString() method which in my opinion should not just be for debugging ;) Here it is: <code> @Override public String toString() { final StringBuilder s = new StringBuilder(); s.append("["); if (!isEmpty()) { s.append(get(defaultThrowingThunk).toString()); } return s.append("]").toString(); } </code> whereby <code>defaultThrowingThunk</code> is just a <code>Thunk</code> object which throws an exception within methode <code>value()</code>. Greetings Andreas P.S.: what is the correct markup value for <code> tag for java code highlighting? While I was a bit playing with the code I determined another optimization for the toString() method which in my opinion should not just be for debugging ;)

Here it is:

@Override
public String toString() {
final StringBuilder s = new StringBuilder();
s.append("[");
if (!isEmpty()) {
s.append(get(defaultThrowingThunk).toString());
}
return s.append("]“).toString();
}

whereby defaultThrowingThunk is just a Thunk object which throws an exception within methode value().

Greetings
Andreas

P.S.: what is the correct markup value for <code> tag for java code highlighting?

]]> By: Andreas http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-45997 Andreas Fri, 17 Sep 2010 14:41:20 +0000 http://blog.tmorris.net/?p=760#comment-45997 Hi @all, first of all I would like to thank you for this great exercise. I implemented all the methods and wrote same additional tests using TestNG which all works fine. 1/ What should returned if in method app none() is supplied as parameter? 2/ Is there a provided solution to this or can you just send it to me via Email? Greetings Andreas Hi @all,

first of all I would like to thank you for this great exercise. I implemented all the methods and wrote same additional tests using TestNG which all works fine.

1/ What should returned if in method app none() is supplied as parameter?

2/ Is there a provided solution to this or can you just send it to me via Email?

Greetings
Andreas

]]> By: czar http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-42105 czar Sun, 20 Jun 2010 14:45:21 +0000 http://blog.tmorris.net/?p=760#comment-42105 Don't get wat u guys r trying to do here I am a rookie in java cn u guyz break it down Don’t get wat u guys r trying to do here I am a rookie in java cn u guyz break it down

]]> By: Tony Morris http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-40531 Tony Morris Thu, 13 May 2010 00:07:45 +0000 http://blog.tmorris.net/?p=760#comment-40531 Well woopsy doopsy indeed. Thanks Kristian. Well woopsy doopsy indeed. Thanks Kristian.

]]> By: Kristian Domagala http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-40530 Kristian Domagala Wed, 12 May 2010 23:39:20 +0000 http://blog.tmorris.net/?p=760#comment-40530 1/ Perhaps there is confusion caused by the superfluous <B> type declaration in the filter method? 1/ Perhaps there is confusion caused by the superfluous <B> type declaration in the filter method?

]]> By: Tony Morris http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-40529 Tony Morris Wed, 12 May 2010 23:13:24 +0000 http://blog.tmorris.net/?p=760#comment-40529 Hi Misha, 1/ I'm not sure I understand this question. The filter function takes a predicate (A -> Boolean) and if the list is non-empty, ensures that the element satisfies this predicate. In any other case, an empty list is returned. 2/ Woops, yes. Corrected, thanks. Hi Misha,
1/ I’m not sure I understand this question. The filter function takes a predicate (A -> Boolean) and if the list is non-empty, ensures that the element satisfies this predicate. In any other case, an empty list is returned.

2/ Woops, yes. Corrected, thanks.

]]> By: Misha http://blog.tmorris.net/beginner-java-exercise-with-data-types/#comment-40509 Misha Wed, 12 May 2010 08:01:26 +0000 http://blog.tmorris.net/?p=760#comment-40509 Thanks! Enjoyed solving this. Two questions: 1/ What is the function of the <B> type in the definition of the filter method? 2/ In the example output on 122, why should it not output '[it's even]'? Thanks! Enjoyed solving this.
Two questions:
1/ What is the function of the type in the definition of the filter method?
2/ In the example output on 122, why should it not output ‘[it's even]‘?

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