Java Tutorials : Create Immutable class in Java

Immutability: Should not change Object values once created
//Make class as final
//Make variables as private
//Make variable as final
//No setter method
//Make Deep copy for Object

What benefits we get due to immutability:
- Saving Heap Space
- Good for HashMap Key
- Good for critical operation
- Good for Multiple thread operation. Thread safe

DO watch video for more info.

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