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Java Tutorial - #32 - String vs. StringBuffer

Category: Java - Author: Karl Hadwen

Home > Java > Java Tutorial - #32 - String vs. StringBuffer

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In this video I'll be showing you the difference between String and StringBuffer. To quote a good Stackoverflow source:

String is used to manipulate character strings that cannot be changed (read-only and immutable).

StringBuffer is used to represent characters that can be modified.

Performance wise, StringBuffer is faster when performing concatenations. This is because when you concatenate a String, you are creating a new object (internally) every time since String is immutable.

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