Consultant Developer Interview Questions and Answers

String Buffer and String Builder are classes in Java used for manipulating strings.

• String Buffer and String Builder are mutable classes, meaning they can be modified.

• String Buffer is synchronized, making it thread-safe but slower than String Builder.

• String Builder is not synchronized, making it faster but not thread-safe.

• Both classes have methods for appending, inserting, deleting, and replacing characters in a string.

• Example: StringBuilder sb = new StringBuilder("Hello"); sb...read more