Class variable: public access read-only, but private access r/w

java class-variables
th3falc0n picture th3falc0n · Jan 14, 2013 · Viewed 10k times · Source

In my current project I have a class which stores its Instance in a variable. This Instance should be accesible by all other classes in the project, but it may only be altered by its own class.

How can I achieve this?

Answer

MrSmith42 picture MrSmith42 · Jan 14, 2013

Write a public getter but no public setter. And the field itself private

Related questions

What is the difference between up-casting and down-casting with respect to class variable

What is the difference between up-casting and down-casting with respect to class variable? For example in the following program class Animal contains only one method but Dog class contains two methods, then how we cast the Dog variable to the …

Read More
Java: Getting the properties of a class to construct a string representation

Let's say I have a class like this (and also further assume that all the private variables: public class Item { private String _id = null; private String _name = null; private String _description = null; ... } Now, if I want to build a toString() …

Read More
why are java constants declared static?

Why are java constants declared static ? class Foo{ static final int FII = 2 ; } In this I understand the use of final? Buy why does it have to be static? Why should it be a class variable, and not an instance variable?

Read More