Integer[] intArray = new Integer[]{1, 2, 3, 4, 5};
String[] nameArray = new String[]{"John", "Mark", "Joe", "Bill", "Connor"};

List<Integer> intList = new ArrayList<>(Arrays.asList(intArray));
List<String> nameList = new ArrayList<>(Arrays.asList(nameArray));

System.out.println(intList.contains(12));
System.out.println(nameList.contains("John"));