java user defined exception example
class InvalidAgeException extends Exception{ InvalidAgeException(String s){ super(s); } } class TestCustomException1{ static void validate(int age)throws InvalidAgeException{ if(age<18) throw new InvalidAgeException("not valid"); else System.out.println("welcome to vote"); } public static void main(String args[]){ try{ validate(13); }catch(Exception m){System.out.println("Exception occured: "+m);} System.out.println("rest of the code..."); } } Output:Exception occured: InvalidAgeException:not valid rest of the code...
