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Difference between StringBuffer and StringBuilder

There are many differences between StringBuffer and StringBuilder. A list of differences between StringBuffer and StringBuilder are given below:

1)StringBuffer is synchronized i.e. thread safe. It means two threads can't call the methods of StringBuffer simultaneously.StringBuilder is non-synchronized i.e. not thread safe. It means two threads can call the methods of StringBuilder simultaneously.
2)StringBuffer is less efficient than StringBuilder.StringBuilder is more efficient than StringBuffer.

StringBuffer Example


StringBuilder Example


Performance Test of StringBuffer and StringBuilder

Let's see the code to check the performance of StringBuffer and StringBuilder classes.

Time taken by StringBuffer: 16ms
Time taken by StringBuilder: 0ms

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