Java RegEx Search Value

Question

Any ideas on how could I get the values from the labeled below text using REGEX on Java Platform. If my regex search was involved the two words of "Demo and Name", I could get the line of "Name: John Doe". If my regex search was involved the two words of "Demo and Address", I could get the value of "Address: Home".

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Demo

    Name: John Doe
    Address: Home

It's really unclear what you want to achieve. Please elaborate. — Dropout
– Dropout, Commented Mar 31, 2014 at 14:35
What I want is to get the line of word when having a search on the text using REGEX. Just imagine that those text above was written on XML format. So, If I want to get the "John Doe", The targeting node is Demo->Name. Something like that, but I want it on REGEX. — Mark
– Mark, Commented Mar 31, 2014 at 14:35
@NappaTheSaiyan Can i achieve this process by using the REGEX? Because Im trying to use the look behind, look ahead but still no luck. — Mark
– Mark, Commented Mar 31, 2014 at 14:51

Mason T. · Accepted Answer · 2014-03-31 14:52:25Z

1

This pattern works for name

Demo\s*|.*Name: (.*)

Test it here http://regexpal.com/

If you are using Java you will most likely be reading the input file one line at a time. If that is the case you need to set a flag when Demo pops up then check for a line containing "NAME:". Set flag off when closing DEMO tag pops up.

answered Mar 31, 2014 at 14:52

Mason T.

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2 Comments

Mark Over a year ago

the patterns works fine, but how could I get the value of "Name: John Doe" like what has been highlighted on the sample runner

Mason T. Over a year ago

Anything between () is captured which means in this case "John Doe" will be captured. If you want "NAME: John Doe" then move the start of the parenthesis to before "Name"

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