Const in java (Final)

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;   Note: 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.