userdefined exception

import java.util.Scanner;
class CatchException extends Exception{
    public CatchException(String Message){
        super(Message);
}}
class Main {
    public static void subclass() throws CatchException{
        int age;
        Scanner sc=new Scanner(System.in);
        System.out.print("enter age:");
        age=sc.nextInt();
        if(age<15){
            throw new CatchException("age id not allowed to vote");
        }
    }
    public static void main(String[] args) {
         try{
              subclass();
        }
         catch(CatchException c){
             System.out.println(c.getMessage());
         }
         catch(ArithmeticException e){
              System.out.print(e.getMessage());
         }
         catch(ArrayIndexOutOfBoundsException a){
             System.out.print(a.toString());
         }
         finally{
             System.out.println("blocks are executed");
         }
    }
}