Java中String轉換爲int

String array[] = { "5555", "6666", "2222", "9999", "1111" };
  int[] number = new int[array.length];
  for (int i = 0; i < array.length; i++) {
   int num = Integer.parseInt(array[i]);// 轉換
   number[i] = num;
  }
  System.out.println(number.length);