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Regexp Java for password validation

I'm creating a regexp for password validation to be used in a Java application as a configuration parameter. 15 Answers ...
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Finding Number of Cores in Java

How can I find the number of cores available to my application from within Java code? 4 Answers ...
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How to handle exceptions in a list comprehensions?

I have some a list comprehension in Python in which each iteration can throw an exception. 6 Answers ...
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Why is this program valid? I was trying to create a syntax error

I'm running ActiveState's 32 bit ActivePerl 5.14.2 on Windows 7. I wanted to mess around with a Git pre-commit hook to detect programs being checked in with syntax errors. (Somehow I just managed to do such a bad commit.) So as a test program I randomly jotted this: ...
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Get all column names of a DataTable into string array using (LINQ/Predicate)

I know we can easily do this by a simple loop, but I want to persue this LINQ/Predicate? 4 Answers ...
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How does grep run so fast?

I am really amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though) ...
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How to see if an NSString starts with a certain other string?

I am trying to check to see if a string that I am going to use as URL starts with http. The way I am trying to check right now doesn't seem to be working. Here is my code: ...
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A regex to match a substring that isn't followed by a certain other substring

I need a regex that will match blahfooblah but not blahfoobarblah 5 Answers 5 ...
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Check whether a string contains a substring

How can I check whether a given string contains a certain substring, using Perl? 3 Answers ...
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Applying function with multiple arguments to create a new pandas column

I want to create a new column in a pandas data frame by applying a function to two existing columns. Following this answer I've been able to create a new column when I only need one column as an argument: ...