What are the differences between String and StringBuffer?
Solution:
The differences between the String and StringBuffer is given in the table below.
| No. | String | StringBuffer |
|---|---|---|
| 1) | The String class is immutable. | The StringBuffer class is mutable. |
| 2) | The String is slow and consumes more memory when you concat too many strings because every time it creates a new instance. | The StringBuffer is fast and consumes less memory when you cancat strings. |
| 3) | The String class overrides the equals() method of Object class. So you can compare the contents of two strings by equals() method. | The StringBuffer class doesn't override the equals() method of Object class. |
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