int[] arr = new int[-5]; try { if (arr.length < 0) { throw new IllegalArgumentException("Array size cannot be negative: " + arr.length); } } catch (IllegalArgumentException e) { System.out.println(e.toString()); }
String dateStr = "2020-13-15"; DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd"); try { Date date = dateFormat.parse(dateStr); } catch (ParseException e) { throw new IllegalArgumentException("Invalid date format: " + dateStr); } catch (IllegalArgumentException e) { System.out.println(e.toString()); }Package library: java.text