Java Bean
Java Bean ou POJO
: Plain Old Java Object
A JavaBean is a specially constructed Java class written in the Java and coded according to the JavaBeans API specifications. Following are the unique characteristics that distinguish a JavaBean from other Java classes: It provides a default, no-argument constructor. It should be serializable and implement the Serializable interface. It may have a number of properties which can be read or written. It may have a number of "getter" and "setter" methods for the properties.