java.util.regex.PatternSyntaxException: Dangling meta character ‘?’ near index 0

07 Sep

You can get this error when you try to use the split method in java like

String str = “sample?string”;


here the split will not work in usual manner where it should return an array with two elements, sample and string… Instead it will throw the above error. This is because few characters are reserved characters which include “?” pattern also.. Hence it cannot be parsed by split method.. So we should use the escape sequence as


which should work fine

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Posted by on September 7, 2011 in Java


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