Which class in Java provides a mutable alternative to String for efficient string manipulations?This question is required.*AStringBuilderBMutableStringCStringListDStringBuffer
Question
Which class in Java provides a mutable alternative to String for efficient string manipulations?This question is required.*AStringBuilderBMutableStringCStringListDStringBuffer
Solution
The class in Java that provides a mutable alternative to String for efficient string manipulations is StringBuilder (Option A) and StringBuffer (Option D). Both classes are used when we have to make a lot of modifications to Strings of characters.
Unlike Strings, objects of type StringBuilder and StringBuffer can be modified over and over again without leaving behind a lot of new unused objects.
The difference between StringBuilder and StringBuffer is that StringBuilder is not thread-safe whereas StringBuffer is thread-safe.
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