What are the standards for creating a Java Bean?

Here is the specification for creating a Java Bean:

1. Classes must be public and have a default constructor with no parameters to ensure objects can be created by calling the default constructor.
2. All properties must be private and accessed through public getter and setter methods. This is to encapsulate the properties and provide control over them.
3. The name of the property must follow the camel case naming convention and start with a lowercase letter. For example, if the property is “name,” the corresponding getter and setter methods should be named “getName” and “setName” respectively.
4. The getter and setter methods must be public and named according to standard naming conventions. The getter method should start with “get” followed by the capitalized first letter of the property name. The setter method should start with “set” followed by the capitalized first letter of the property name.
5. Optionally, a common toString method can be provided for each attribute to output the string representation of the object during debugging.
6. Optionally, the Serializable interface can be implemented to support the serialization and deserialization of objects.

Adhering to these standards can make Java Bean easier to use and maintain, and can easily be utilized in many frameworks and tools such as Spring and Hibernate.