Can you name the main immutable data types used in Java?

Main immutable data types in Java:

• String: string objects cannot be changed after creation.
• Wrapper classes for primitives: Integer, Long, Double, Boolean, and others — their values cannot be changed after the object is created.
• Enum: enumerations are immutable.

Immutability means that once an object is created, its state cannot be changed, which simplifies multithreaded programming and increases code safety.