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anyone here do Java?
http://forums.clankiller.com/viewtopic.php?f=24&t=1155		 Page 1 of 4
Author:  derf [ Mon Feb 21, 2005 1:25 pm ]
Post subject:  anyone here do Java?
Goddamn! Why the fuck dont this work!!!???

I need this to repeat the appearance of a window until the user inputs Y.

****************************************************

boolean continuing = true;
WHILE (continuing = true);
{
char response;
response = IO.readChar("Are you sure you want to exit?")
if (response = 'Y')
continuing = false;
else
break;
}
****************************************************

The compiler sais:

"incompatible types"
found: char
required: boolean

WTF????!?!?!?!!!!!
Author:  Pig [ Tue Feb 22, 2005 8:52 am ]
Post subject: 
Shouldn't it be
WHILE (continuing == true);
And
if (response == 'Y')
Author:  derf [ Tue Feb 22, 2005 9:09 am ]
Post subject: 
Mmm, your idea seems to be ok, but now it sais the char "continuing" variable has not been initialised. WTF, yes it has, its in bold BTW.

******************************************
public static void main(String args[])
{
String studentNumber;
Student thisStudent;
boolean continuing = true;
char response;
char selection;
while (continuing == true)
selection = IO.readChar(version + "\n\nPlease input 1, 2, 3 or 4");
switch (selection)
{
case '1': // do this do that blah blah... ... ...
*****************************************************
Author:  Pig [ Tue Feb 22, 2005 9:32 am ]
Post subject: 
You've bolded selection, not continuing. It looks like you are initializing it here:
boolean continuing = true;

I don't know Java, but maybe they make you prototype it before you define it?
Maybe do:
boolean continuing;
continuing = true;


You don't have to do that in any other languages I've used, but maybe Java is weird. Also, try putting in some debugging in your script to see where the confusion is. after you define continuing, do a test to see if it is defined or not.
Author:  derf [ Tue Feb 22, 2005 9:37 am ]
Post subject: 
Sorry, i meant selection has not been initialised

//EDIT - Fixed this, i added some brakets for the WHILE loop.

Though, the damn thing doesnt loop!!!

//EDIT - Now it does. I removed a semi-colon.

THANKS PIGGIE FOR THE ADVICE ON THE == OPERATOR!!!

*KISSES PIGS LOVELY THIGHS*
Author:  Pig [ Tue Feb 22, 2005 9:46 am ]
Post subject: 
Some languages keep a variable within level it is defined. Moving into a deeper or shallower level of brackets make the var go out of scope. eg:

str var = 'foo';
print var; //returns 'foo'
for(;;)
{
printvar; //undefined
str var = 'bar';
print var; //returns 'bar';
}
print var; //returns 'foo'

Again, I don't know if java is like this, but try initializing the variable within the brackets you are using it.
Author:  Pig [ Tue Feb 22, 2005 9:47 am ]
Post subject: 
good deal. Thanks for the kisses.
Author:  ElevenBravo [ Tue Feb 22, 2005 10:30 am ]
Post subject: 
I like coffee.....mmmm
Author:  derf [ Tue Feb 22, 2005 10:36 am ]
Post subject: 
Image
Author:  Pig [ Tue Feb 22, 2005 11:41 am ]
Post subject: 
ROFL
Author:  derf [ Wed Mar 23, 2005 6:28 am ]
Post subject: 
Why doesnt Java like the formula:

return (X / 100 * 60) + (Y / 100 * 40) / 2;
Author:  pevil [ Wed Mar 23, 2005 8:30 am ]
Post subject: 
coz its an ass.

try making a variable that works that out, then just return the variable.
Author:  derf [ Wed Mar 23, 2005 10:11 am ]
Post subject: 
I shouldnt need to because the class specification im working with doesnt include a variable as an attribute. It merely sais that a method will suffice.
Author:  pevil [ Wed Mar 23, 2005 12:53 pm ]
Post subject: 
hmmm well its like 2 years since i did java now...

not something daft like the method itself being declared wrong so its unable to return anything? whats the error its giving you?
Author:  derf [ Thu Mar 24, 2005 6:23 am ]
Post subject: 
Its not returning an error, its retirning 0.0 as a value.

Ill mess around with data types, see if that gets me anywhere.
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