diff between stringbuffer and stringbuilder code example

Example 1: string vs stringbuilder

String is immutable and thread safe
String builder mutable and not thread safe

Example 2: string vs stringbuilder vs stringbuffer

String vs StringBuilder vs StringBuffer

                STRING          STRINGBUFFER       STRINGBUILDER

Storage         String Pool     Heap                Heap
Modifiable      Immutable   	Mutable           	Mutable
Thread Safe     YES             YES                 NO
Performance     FAST            VERY SLOW           FAST