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Question 70/150
The default file system includes a logFiles directory that contains the following files:
Log-Jan 2009
log_0l_20l0
log_Feb20l0
log_Feb2011
log_10.2012
log-sum-2012
How many files does the matcher in this fragment match?
PathMatcher matcher = FileSystems.getDefault ().getPathMatcher ("glob: *???_*1?" );
Log-Jan 2009
log_0l_20l0
log_Feb20l0
log_Feb2011
log_10.2012
log-sum-2012
How many files does the matcher in this fragment match?
PathMatcher matcher = FileSystems.getDefault ().getPathMatcher ("glob: *???_*1?" );
Correct Answer: B
Explanation/Reference:
Explanation:
The pattern to match is *???_*1? (regex ".*..._.*1.")
This means at least three characters before the symbol _ , followed by any amount of characters. The next
to last character must be 1. The last character can by any character.
The following file names match this pattern:
log_Feb2011
log_10.2012
Trap !! l is not 1 !!
Explanation:
The pattern to match is *???_*1? (regex ".*..._.*1.")
This means at least three characters before the symbol _ , followed by any amount of characters. The next
to last character must be 1. The last character can by any character.
The following file names match this pattern:
log_Feb2011
log_10.2012
Trap !! l is not 1 !!
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