write a java program for creating own exception

class InvalidageExeption extends Exception 

{

InvalidageExeption(String s)

{

super(s);

}

}

class TestException 

{

static void validate(int age) throws InvalidageExeption

{

if(age<18)

throw new InvalidageExeption("not valid");

}

public static void main(String[] args) throws InvalidageExeption

{

validate(13);

}

}