Moofwd Interview Questions and Answers

String is immutable, while StringBuilder is mutable and more efficient for concatenating multiple strings.

• String is immutable, meaning once created, it cannot be changed. Any operation that appears to modify a string actually creates a new string object.

• StringBuilder is mutable, allowing for efficient manipulation of strings by modifying the existing object.

• Use String when the value will not change frequently, and Stri...read more