By using standard Java naming conventions, you make your code easier to read.
The following key rules must be followed by every identifier:
The name must not contain any white spaces.
The name should not start with special characters like &, $, and _.
Camel-Case in Naming Conventions
Classes, interfaces, methods, and variables follow the camel-case syntax.
If the name is combined with two words, the second word will start with a uppercase letter like actionPerformed(), firstName, and ActionEvent.
Packages
It should use lowercase letters such as java and lang.
If the name contains multiple words, it should be separated by dots (.) such as java.util and java.lang.
package com.javapoint;
public class Employee {
// code snippet
}
Classes
It should start with a uppercase letter.
It should be a noun such as Color, Button, System, Thread, etc.
Use appropriate words, instead of acronyms.
public class Employee {
// code snippet
}
Interfaces
It should start with a uppercase letter.
It should be an adjective such as Runnable, Remote, and ActionListener.