quick question about 2 Dimensional ArrayList in Java

[soccerbud34]

Is there a method that makes it possible for one person retrieve one element but not one whole row of elements in 2 dimensional arrayLists?


thanks

 

[Ameesh]

lol, use two set of brackets like foo[8][4]

 

[soccerbud34]

tried it ... but for some reason, the double brackets [][] does not work on arrayLists ... or i did not do the [][] the right way

i.e. i tried myWords[f][g] (where both f and g are integers ) and i got an error saying " array required but java.util.arrayList found"

any ideas why?

edit** sorry if i misinformed you guys, but i am talking about 2D ArrayLists but not 2D arrays ... i know howt to access cells in 2D arrays **

thanks!

 

[Mr.IncrediblyBored]

I'm unfamiliar with Java, but there should be a way to access any cell in the array with bracketed arguments. For example, you have an array variable called my2dArray. You could access individual cells with "[]". Like so:

my2dArray[12][10];

.. would give you the contents of the cell in the 13th row and 11th column (maybe 12th and 10; are indexes zero-based like in C?).

Edit: I type slowly.

 

[Ameesh]

<< tried it ... but for some reason, the double brackets [][] does not work on arrayLists ... or i did not do the [][] the right way

i.e. i tried myWords[f][g] (where both f and g are integers ) and i got an error saying " array required but java.util.arrayList found"

any ideas why?

edit** sorry if i misinformed you guys, but i am talking about 2D ArrayLists but not 2D arrays ... i know howt to access cells in 2D arrays **

thanks! >>



oh i see its a class not an array,

well you could do two get operations like ((arrayList)foo.get(f)).get(g)

thats should do it fine.