POJO stands for Plain Old Java Object. It is a simple object that is not bound by any special restriction. POJO class doesn’t follow any special conventions or frameworks.
Java Bean is a unique kind of Java class that follows certain guidelines and is frequently used to encapsulate data in Java applications. Java Beans can be easily instantiated using the Class.newInstance() method.
While both POJO and Java Bean are simple Java classes, Java Beans follow stricter conventions, such as implementing Serializable and having getter/setter methods. A POJO doesn’t necessarily need to follow these rules.