| | |
| | | public static boolean isDouble(String str) { |
| | | try { |
| | | Double num2 = Double.valueOf(str); |
| | | System.out.println("Is Number!" + num2); |
| | | System.out.println(num2 + " is a valid numeric string!"); |
| | | return true; |
| | | } catch (Exception e) { |
| | | System.out.println("Is not Number!"); |
| | | System.out.println(str + " is an invalid numeric string!"); |
| | | return false; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 判断是否Double格式 |
| | | * @param str |
| | | * @return true/false |
| | | */ |
| | | public static boolean isInteger(String str) { |
| | | try { |
| | | int num2 = Integer.valueOf(str); |
| | | System.out.println(num2 + " is an integer!"); |
| | | return true; |
| | | } catch (Exception e) { |
| | | System.out.println(str + " is not an integer!"); |
| | | return false; |
| | | } |
| | | } |