Immutable class in Java | Why immutable class? |How to make a class Immutable by Naren
This video explains concepts on Immutable Class in Java
What is immutable class?
Immutable means unmodified or unchangeable. Once the immutable class's objects are created, its object values and state cannot be changed.
Example - Primitive objects such as int, long, float, double, Wrapper classes(Integer, Float etc), String class, etc.
How to make a class Immutable?
1. Final class, which is declared as final so that it can't be extended.
2. All fields should be private and final so that direct access to the fields is blocked.
3. No Setters
4. If using a mutable object reference in immutable class, make a deep copy of it and then refer
Your quires:
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