Syntax problem in insertion sort

Question

What I'm trying to do is use different types of algorithims, to sort the text file.
I'm using bubble, selection, and insertion sorts, which are being implemented with an arraylist. The bubble, and selection, comes out fine, but having problems getting the syntax right for the insertion sort.
The error comes in the inner for loop when I try to compare tmp and data.get(j-1) I get this error "The operator && is undefined for the argument type(s) boolean, int. Obviously I screwed this part of the coding, and I need help trying to figure out how to correct it. Thanks for any help.
public static void insertionSort (List data)
             Comparable tmp;
          int i, j;
             for(i = 1; i < data.size(); i++)
                  tmp =  (Comparable)data.get(i);
                   for(j = i; j > 0 && tmp.compareTo(data.get(j - 1)) ; j--) // <--- right here
                        data.set(j, data.get(j - 1))  ;
                   data.set(j, tmp)  ;
}

Answer 1

You need to check whether the compareTo returns less
than zero or greater than zero (depending on your
sort order).
(j > 0) && (tmp.compareTo(data.get(j - 1)) >
0)I added parentheses around the two boolean
expressions. Probably not necessary, but makes it
easier to read--and you don't have to remember the
operator precedence rules.
You might want < 0 at the end--as I said, depends on
your sort order.That fixed it thanks alot, oh and it was in decending order, so I just had to switch the ending part around.