To help encourage the safe use of acetaminophen, the makers of TYLENOLÂ® have lowered the maximum daily dose for single-ingredient Extra Strength TYLENOLÂ® (acetaminophen) products sold in the U.S. from 8 pills per day (4,000 mg) to 6 pills per day (3,000 mg).
Design Patterns. In software engineering, a design pattern is a general repeatable solution to a commonly occurring problem in software design. A design pattern isn't a finished design that can be transformed directly into code. It is a description or template for how to solve a problem that can be used in many different situations.
Singleton pattern : is the one of the simplest design patterns which involves only one class which instantiates itself to make sure that it creates one instance.Singleton ensues that it has only one instance and provides global point of access to the object.