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Which capturing group can represent the entire expression?

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in Java by (98.5k points)
Which capturing group can represent the entire expression?

(a) group *

(b) group 0

(c) group * or group 0

(d) None of the mentioned

This question was addressed to me in unit test.

My enquiry is from Regular Expression in portion Regular Expressions of Java

1 Answer

+1 vote
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Best answer
Correct option is (b) group 0

The best explanation: Group 0 is a special group which represents the entire expression.

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