Java Array, Finding Duplicates

Question

I have an array, and am looking for duplicates.

duplicates = false;
for(j = 0; j < zipcodeList.length; j++){
    for(k = 0; k < zipcodeList.length; k++         


        

Answer 1

Cause you are comparing the first element of the array against itself so It finds that there are duplicates even where there aren't.