StringBuffer and StringBuilder

13.7 Difference b/w StringBuffer and StringBuilder

Difference between StringBuffer and StringBuilder

• StringBuilder class has been added in java 1.5 version.
• StringBuilder having same features like StringBuffer class.
• StringBuilder objects also mutable as StringBuffer

StringBuffer:

1. Every method is synchronized.
2. This object is thread safe, because it can access only one thread at a time.
3. Low performance.
4. Introduced in 1.0 version.

StringBuilder:

1. No method is synchronized
2. This object is not thread safe, because it can access multiple threads simultaneously.
3. High performance
4. Introduced in java 1.5 version.

Example for Synchronization : Interview pattern

• At a time one candidate is allowed to attempt the interview in interview panel.

Thanks for your time.

Nireekshan