Differentiate between StringBuffer and StringBuilder in java.

Following are the differences between StringBuffer and StringBuilder in java: –

• StringBuffer methods are synchronized, whereas StringBuilder methods are non-synchronized.
• In StringBuffer, a storage area is a heap which can be modified easily, whereas, in StringBuilder, storage is heap which can be modified easily.
• StringBuffer is threading safe, whereas StringBuilder is not.
• The performance of StringBuffer is very slow, whereas the performance of StringBuilder is fast.