Java Naming Conventions Cheat Sheet
Java naming conventions are a set of rules and best practices that are followed while naming the variables, methods, classes, and other identifiers in Java code. These are some of the commonly accepted conventions in the Java community:
| Identifier Type | Convention | Example |
|---|---|---|
| Class or Interface | PascalCase, nouns, and should typically be descriptive. | Student, CourseManager |
| Method | camelCase, verbs, and often start with standard prefixes like get/set/is. | getBalance, setHeight |
| Variable | camelCase, descriptive, and should indicate the purpose of the variable. | accountNumber, customerAddress |
| Constant | UPPER_CASE with underscores separating words. | MAX_WIDTH, DEFAULT_TIMEOUT |
| Package | Lowercase and should use a hierarchical naming pattern. | com.example.myapp |
| Generic Types | Single uppercase letter, starting with ‘T’ for type. | T, E for element, K for key, V for value |
| Enum | PascalCase, and individual constants should be in UPPER_CASE. | Color, DayOfWeek |