Exception handling is the process of responding to unwanted or unexpected events when a computer program runs. Exception handling deals with these events to avoid the program or system crashing, and without this process, exceptions would disrupt the normal operation of a program. Exceptions occur for numerous reasons, including invalid user.

Examples of carbohydrates include sugars, starch, and fiber in the diet. The body’s top priority is to provide enough energy for all cellular activities needed to sustain life. Carbohydrates are the preferred source of energy. If the diet does not provide adequate carbohydrates the body will draw mainly upon proteins for its energy needs.