Describe, with an example, what is meant by an exception.

1. (a)Describe, with an example, what is meant by an exception.[2]
2. (b)A pseudocode algorithm searches for a customer record in a random file AccountRecord.dat.A user inputs the name of the customer. The records are stored using the user-defined data type TAccount. TYPE TAccount DECLARE AccountNumber : INTEGER DECLARE Name : STRING DECLARE Address : STRING DECLARE Telephone : STRING ENDTYPE If the record is found, it is output, otherwise an error message is displayed. Complete the file handling pseudocode. DECLARE Customer : TAccount DECLARE Location : INTEGER DECLARE MaxSize : INTEGER DECLARE FoundFlag : BOOLEAN DECLARE SearchCustomer : STRING MaxSize ← 1000 OPENFILE Location ← 1 OUTPUT "Enter the customer's name" FALSE AND Location <= MaxSize "AccountRecord.dat", GETRECORD "AccountRecord.dat", Customer IF SearchCustomer = Customer. Name THEN OUTPUT "Customer found: " OUTPUT Customer // output customer record FoundFlag ← TRUE ENDIF Location ← Location + 1 ENDWHILE IF NOT FoundFlag THEN OUTPUT " " ENDIF[7]