Java Hw5

Algorithm for similarity(items1, items2) method: ================================================ 1. initialize n_s = 0 2. for i = 0 up to n_items in items1 minus 1 key = items1[i] for j = 0 up to n_items in items2 minus 1 check if key == items2[j] n_s ++; break; 3. return n_s