It is good practice to minimize the use of literal numbers, and to instead represent them using variables. If the value of the variable doesn’t change, such as the value of PI, then we can make it a constant variable using the keyword final:
final datatype VARIABLE_NAME = value;
Once a constant is initialized, it’s value cannot be changed.
By convention, constants are all upper case and words are separated by the underscore character
Please SUBSCRIBE to Appficial, and check out more Java Programming Tutorials!
The Basic Parts of a Java Program – Class and Main Method Header and Comments
Java Declaring and Initializing Variables
Naming Java Identifiers – Variables, Methods, and Object Names – Java Tutorial
Java Reserved Keywords – Words like public static void class int double
Java Primitive Data Types – byte short int long float double char and boolean
Java Integers – int long byte and short Integer Variables
Java Floating Point Numbers – float and double
Java E Notation – Doing Scientific Notation in a Java Program
Java Integer Division and Dividing by Zero – Java Tutorial – Appficial
Java Basic Math Arithmetic Expressions and Precedence Rules
Java Compound Operators – Combined Assignment Arithmetic Operator Examples
Java Constants – Constant Variables using Keyword Final
Java Math Class Methods
Java Type Conversions and Type Casting
How to Convert Binary numbers to Decimal Numbers
Java Characters – The char Primitive Data Type
Java Escape Characters
Java String Class
Java Scanner Class
Java Integer Overflow
Java Style Guidelines
Tag: constant java, appficial, java, java constants, constants, java final, final, java constant, constant variable, java constant variable, final keyword, pi, literal numbers, final variables, constant names, variable names, java programming, java tutorial, java examples, java example, learn java, learning java, easy java, java easy, how to program, java program, java coding, java code, programming, how to write java, java api, jre, jdk, jvm, java se, java 8, java 9
Xem thêm: https://icongnghe.org/category/pc
Nguồn: https://icongnghe.org
3 Bình luận. Leave new
Please SUBSCRIBE! More programming videos coming soon! ✌️
Thank you!! U are the only one who described it so well.
Why do we need to write public ?