Learn Java Naming Conventions in 5 Minutes: Simple & Easy!
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Chapters:
0:07 - Introduction
0:15 - Why should we give meaningful names to variables
0:39 - Camel Case
1:33 - Pascal Case
2:13 - Snake Case
2:46 - upper snake Case
3:24 - Coding Examples
4:57 - Question for Titans
5:17 - Outro
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In Java, variable names follow specific conventions to make the code more readable and maintainable. These conventions help in understanding the purpose and scope of a variable at a glance. Here are the common variable naming conventions used in Java:
1. Camel Case
In this convention, the first word is in lowercase, and each subsequent word starts with an uppercase letter.
Example: myVariableName, userAge, numberOfStudents
It's commonly used for naming:
Variables: int userAge = 25;
Methods: getUserData()
2. Pascal Case
Similar to Camel Case, but in this case, the first letter of every word, including the first one, is capitalized.
Example: MyClassName, StudentDetails
It's commonly used for:
Class Names: class UserAccount {}
3. Snake Case
All letters are lowercase, and words are separated by underscores.
Example: my_variable_name, total_student_count
This is not commonly used in Java but may appear occasionally in constants or in legacy code.
4. Upper Snake Case
Similar to Snake Case, but all letters are uppercase. It is mainly used for constants in Java.
Example: MAX_HEIGHT, PI_VALUE
It's commonly used for:
Constants: final int MAX_HEIGHT = 200;
5. Kebab Case (Not used in Java)
Note: Kebab Case uses hyphens (-) between words (e.g., my-variable-name), but this is not a valid naming convention in Java because hyphens are not allowed in identifiers.
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