Web Reference: Dec 4, 2018 · The codePointBefore () method of StringBuffer class is a method used to take an index as a parameter and returns the “Unicode number” of the character present before that index. The value of index must lie between 0 to length-1. In this Java tutorial, we dive into the `codePointBefore (int index)` method of the `StringBuffer` class. This method returns the Unicode code point value bef... The StringBuffer.codePointBefore() method in Java is used to return the Unicode code point before a specified index within the StringBuffer object. This guide will cover the method's usage, explain how it works, and provide examples to demonstrate its functionality.
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