custom_exception.java

class myException extends Exception
{
    public myException(String s)
    {
        super(s);
    }
}
public class custom_exception 
{
    public static void main(String[] args)
    {
        try
        {
            throw new myException("exceptionsss");
        }
        catch(myException ex)
        {
            System.out.println("caught");
               System.out.println(ex.getMessage());
        }  
    } 
}