@@ -0,0 +1,283 @@
+package ru.matevosyan.start;%0A%0A/**%0A * Created for valid input data.%0A * Created on 27.12.2016.%0A * @since 1.0%0A * @version 1.0%0A * @author Matevosyan Vardan%0A */%0Apublic class IdExistException extends  RuntimeException%7B%0A    public IdExistException(String msg) %7B%0A        super(msg);%0A    %7D%0A%7D%0A

add IdExistException.java