Im trying to generate three(3) random operators at once,using a method like this:
public randOperators{
Random randOps =new Random();
char[] chars =newchar[]{'+','-','*'.'/'};
}
Thats as far as i can go,for now. Not sure,if i can use a for loop,or what works best. Thanks for any help.
Now,if I want to produce,3 operators,not one,will a for loop do it? or any suggestions?
public randOperators{
Random randOps = new Random();
char[] chars = new char[]{'+','-','*'.'/'};
randOps.nextInt(4);
}
> Now,if I want to produce,3 operators,not one,will a
> for loop do it?
I don't think you need to ask that question.
You know what a for loop is for, right?
You know how to do something multiple times, right?
You do have the ability to try something and see if it works, right?
Here's what ive done,but no success so far.
-For loop to loop 3 times to get me 3 ops
-The index to get me an operator at that index
public character randOperators{
Random randOps = new Random();
for( int i =0; i<= 3; i++ ){
char[] chars = new char[]{'+','-','*'.'/'};
randOps.nextInt(3);
return randOps.nextInt[i];
}
}
> Here's what ive done,but no success so far.
> -For loop to loop 3 times to get me 3 ops
In general it helps if you're more specfic about HOW it's not working.
Your syntax is all messed up, for one thing. You need to pay closer attention to that.
* It's char, not character.
* In a method decaration, after the method name, you need parens, either empty or with the list of args and their types.
In addition to that, think about this for a second:
for ( ... ) {
do stuff
return something
}
As soon as return is called, the method ends. You can't return multiple times from one method.
Stop and think about it for a second. If you're calling that method char ch = randOperators();
you'll get a single character back.
Either call that method three times, and move the loop out of the method, or have that method return an array of char.
> -The index to get me an operator at that index
So, you don't know how to get the element at a particular index in an array? If I say foo is a char[], now get me foo's 3rd element, you don't know how to do that?
http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.html
> Thank you.Very helpful.
> foo[] is array of char and u want the third
> element,which is index = 2
> you can call the charAt method to get the third
> element of foo[].
No, you can't.
http://java.sun.com/docs/books/tutorial/java/nutsandbolts/arrays.html
> Ok,great my bad.I go read a bit arrays,obviously
> thats why im having problems.
Good call. :-)
Once you've done that, post what you think will get the Nth element from an array--or better yet, write code that does that--and only that. If it works, great, and if not, post the next question here.
Then move onto the next piece.
> > what gets the Nth element of an array called Foo[]
> is
> > Foo index[n-1].
> >
> > Still I do need to read on that..for my own
> > betterment :-)
>
> In Java the elements are indexed from 0 to N-1 where
> N is the size of the array. It's just the way it is.
From his post, it seems he understands that.
> > From his post, it seems he understands that.
>
> Are you guessing or do you know?
It's an educated guess, with an exceedingly high probability of being right. Read his post closely. He simply states correctly--in response to me posing the question earlier--that you access the Nth element with [N-1].
> > > From his post, it seems he understands that.
> >
> > Are you guessing or do you know?
>
> It's an educated guess, with an exceedingly high
> probability of being right. Read his post closely. He
> simply states correctly--in response to me posing the
> question earlier--that you access the Nth element
> with [N-1].
Well I read his reply 15 and somehow got the idea this was the problem but if you know it isn't then of course at least you know it isn't.
> Jverd is absolutely correct,as he almost always is.
I wouldn't go that far. Still, maybe you could mention it to my wife...
:-)
> Judjei...youre losing this one.
Ooooh! I didn't realize it was a competition. What do I win? What do I win? GIMME GIMME GIMME!!!
> Oh, I thought you mentioned you were going to do a
> large scale C# project a while back.
Yes sure but it turned out C++/CLI was better so here I am in the middle of it.
C# is 100% Microsoft and the client didn't want that so they went for classic C++ with some CLI and there I am.
