JAVA Array Question.

How to increment an array by -1 in one single loop? For example:

int[] arr = [1, 2, 3, 4];

for(i=0; i

//do something

}

and at the end of the first loop i want arr to be: arr = [0, 1, 3, 4], and then when i=2, arr= [ 0, 0, 2, 4], etc.

I tried this:

for(i=0; i

arr--;

//do something

}

but it gives me: arr = [0, 2, 3, 4], [0, 1, 3, 4], etc.. only one element at a time.

Please help me with this data structure. Thumbs up will be given for correct answer! thank u