cannot find symbol-method add (java.lang.integer)..whats the problem actually? -

public class arraylist {     // instance variables - replace example below own     public void processinput (string s)     {         int[] = {34, 25, 16, 98, 77, 101, 24};          arraylist  b = new arraylist();          for(int = 0; < a.length; i++) {             int d = a[i];             if(d%2 > 0) {                b.add(new integer(d));             }         }          for(int = 0; < b.size(); i++) {             system.out.print(b.get(i) + " ");         }          for(int = a.length; >= 0; i--) {             system.out.print(a[i] + " ");         }     } } 

notice package of class: arraylist not java.util.arraylist.

correct:

java.util.arraylist b = new java.util.arraylist();