The naming habit of Java

The naming habit of Java

By looking at the JDK documentation, the reader can find the declaration of the class in the JDK, the declaration of the method, the constant
The declaration has a certain regularity, the following rules:
The letters in the package name are all lowercase, such as: Demo.java.
The class name, interface name should use nouns, the first letter of each word capitalized, such as: Testperson.     The method name, the first word lowercase, and the first letter of each word, as follows: Talkmyself. Each letter in the constant name is capitalized, such as: country.

The naming habit of Java