What are immutable objects in Java?

What are immutable objects in Java?

Immutable objects in Java are objects whose state cannot be modified after they are created. This means once an object is created, its data cannot be changed.

Can you give me an example of an immutable class?

Sure! A common example is the String class in Java. Once a String object is created, you cannot change its value.

Why are immutable objects useful?

They are useful because they provide thread safety, easier debugging, and can be used as keys in hash tables.

How do I create an immutable class in Java?

To create an immutable class, declare the class as final, make fields private and final, and provide no setters. Initialize fields via a constructor.