Factory pattern should be used when: - a framework delegate the creation of objects derived from a common superclass to the factory - we need flexibility in adding new types of objects that must be created by the class. Along with singleton pattern the factory is one of the most used patterns.
In thermodynamics, the term exothermic process (exo- : outside) describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light (e.g. a spark, flame, or flash), electricity (e.g. a battery), or sound (e.g. explosion heard when burning hydrogen).
There is less energy stored in the chemical. bonds in the products than there was in the reactants. Chemical reactions that release energy are called. exothermic reactions. Chemical reactions in which energy is absorbed from. the surroundings are called endothermic reactions. There. is more energy âstoredâ in the chemical bonds of the. products than there was in the reactants.