Netty poestel

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Recent posts by Netty poestel

Firstly, I am fully aware that this sort of post belongs to a different section of the forum but I started out here and I think this would be the most befitting place to end this little saga of mine

I had bumped into this forum a few months back and started of with questions like " what's the meaning of ~6" and "how does one do binary-arithmetic"......looking back..., if I'm confronted with these kind of questions by someone on the forum today :roll: , my first thought would be,[ranging from] "oh my Gawd, this person should not be trying this exam at all" to "that's a compleeeeetely lost case"........but then I went for it.
With someone starting from scratch and with no Java experience at all [ yes, please repeat after me .....I do not have any JAVA experience, ] and with 3 kids at home and commuting to and fro from a full time job, which incidentally takes a 3 hrs. chunk of my daily schedule, what were the real odds that I was ever going to get through this exam. Let me give you an honest answer,

in an array defined as:-



Had it not been for this forum, I am being very honest here, the above array would have run the way it should, ......but it did not happen like that, what eventually happened was this:-




The past few weeks were quiet excruciating specially with the family getting pretty p*&%#d off [sorry for the 6 letter word here] , as I was spending more and more time with things called as 'mock exams' than with real live people........ am I glad this punishment is now over. I want to thank all the people who took the trouble to take to their keyboards answering my quirky mails , even-though
[and possibly] they must have had "God, she doesn't stand a chance" at the back of their minds.
You all...... were brave too !

All right amigos, it's time to sign off now and ....... and knowing the Gatemaster,the keymaster,the great Ostiarius shall remove this post , my famous last words:-

as to some obscure example in the Strings/Wrapper chapter of a very well known book........... "The Ranch rules".

arrivederci, Auf Wiedersehen en tot ziens
off to the gallows tomorrow...
see if I survive and come back...

G'bye cruel world
Going through a mock ,asking;-

show the line that suggests the value x closest to a 'double' value y

-int x = (int) Math.ceil(y);
-int x = (int) Math.floor(y);
-int x = (int) Math.round(y);

I'm having doubts choosing between 'ceil' and 'round'.
It's indeed a mock but my doubts rose, maybe due to the fact that I may not be interpretting the article "http://java.sun.com/docs/books/tutorial/java/data/garbagecollection.html" in the right way...

but Thx. none-the-less


Question:- "After what line the MyClass object created at line 1 will be eligible for GC?"

I would go for Line 6, since at line 6, x starts pointing to a new MyClassObject and there remains no reference to the original MyClass object.
But there's a different school of thoughts that also says i.e when main() completes.

any thoughts here ?
[ December 26, 2004: Message edited by: Netty poestel ]
a very quick question:-
is (e.g):-

"class x extends package.class_y " ...valid ?
Hi Erin

for my sake ...I'm going for:
String:-[charat,replace,substring,tostring,trim,uppercase,lowercase,length(),equalsignorecase]

Stringbuffer[append,insert,reverse,tostring]

HTH
absolutely right, from that point of context.
But......the subtle difference is, if one declares multiple variables in the same statement such as: int[] i, j; and int i[], j;, then j is not of the same type.
In the first case, j is an array of integers while in the second case, j is just an integer.
[ December 18, 2004: Message edited by: Netty poestel ]
!
finally got it....
I was on the fact that there's a subtle difference between: int[] i; and int i[];
anyone care to explain--> "In the expression: b has 0 [] ..."
this one's eluding me

Q:-which of the following lines of code could be inserted at line 7, and still allow the code to
compile? (Choose four that would work.)
A. b2[0][1] = b;
B. b[0][0] = b3;
C. b2[1][1][0] = b[0][0];
D. b2[1][2][0] = b;
E. b2[0][1][0][0] = b[0][0];
F. b2[0][1] = big;

Now Correct me if I am wrong here.

The answer given to this question is:


12. A, B, E, and F. This question covers the issue of, �What can I assign to an array reference
variable?� The key is to get the dimensions right. For example, if an array is declared as a
two-dimensional array, you can�t assign a one-dimensional array to a one-dimensional array
reference.
C is wrong because it tries to assign a primitive byte where a byte array (one dimension) is
expected. D is wrong because it tries to assign a two-dimensional array where a one-dimensional
array is expected.




while it was mentioned :
C. b2[1][1][0] = b[0][0]; // [2 -3 ]..? << 3-3 == 2-2 >> OK
D. b2[1][2][0] = b; // [0-3 ]..? << 3-3 != 2-0 >> Bad
E. b2[0][1][0][0] = b[0][0];// [2-4]..? << 3-4 != 2-2 >> Bad

[as per the book answer C and D are at fault and E is fine ]

if this is taking too much of an effort, let's forget this one,
"got bigger fish to fry"
Hello Mike

couldn't let this one pass by unnoticed:-


The best rule on this type of assignment is that the number of missing [] in the left-hand expression must match the number of missing [] in the right-hand expression.By "number of missing []" I mean subtract the number of [] in the expression from the number of [] in the original declaration of that array reference variable.



C. b2[1][1][0] = b[0][0]; // [2 -3 ]..?
D. b2[1][2][0] = b; // [0-3 ]..?
E. b2[0][1][0][0] = b[0][0];// [2-4]..?

could you pl. demo an example of this [] arithmetic with the given C,D and E
Thx.
Thx again

I can atleast get it to work now.
For e.g this time around I could figure out myself what

(arr[3][0][1])

and

(arr[3][1][0]) & arr[1][1][0])

shall yield.

I've drawn myself a sketch on an A4 and I think I have a hang on the 3ds.
Thx.


can anyone put this 3-D array in a 'box' drawing , like the K&B book shows on arrays [ for e.g Lesson I, fig. 1-3].
a picture shall say > 1000 words

Thx. for any help
Yes I do see that it'll no longer have a def. constructor that's used in the main().
Thx