So what is the difference between the following codes in a standard for loop: list.get(i) //I know this holds the current element in the list. list.get(i+1); list.get(i -1) list.get(i) + 1) //I think this one grabs the next element following the current element???? list.get(i) -1) I am a little confused as to how this works...or how to implement it. Thanks.