Defining the constants: 'public static final' variables are constant. |
The naming convention for static final variables is to have them in upper case and separate two words with an underscore. For example: |
static final int NUMBER_OF_MONTHS = 12; static final float PI = (float) 22 / 7;
|
|
If you want to make a static final variable accessible from outside the class, you can make it public too: |
public static final int NUMBER_OF_MONTHS = 12; public static final float PI = (float) 22 / 7;
- Using the final keyword to declare a variable.
- The final keyword specifies that the value of a variable is final and cannot be changed.
- It is a convention in Java to write constants in uppercase letters.
- Sometimes we have to use enums instead of these simple constants for better readability.
|
|
No comments:
Post a Comment