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Android: How can I validate EditText input?

...ern.compile("[ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz123456789_]*"); Matcher matcher = pattern.matcher(checkMe); boolean valid = matcher.matches(); if(!valid){ Log.d("", "invalid"); return ""; } } ...
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How do I ignore files in Subversion?

...an error message saying svn: E205007: None of the environment variables SVN_EDITOR, VISUAL or EDITOR are set, and no 'editor-cmd' run-time configuration option was found instead of getting an editor opened. So just specify --editor-cmd nano like this svn propedit svn:ignore . --editor-cmd nano ...
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How to use MDC with thread pools?

...swered Sep 12 '16 at 16:59 MyKey_MyKey_ 67911 gold badge66 silver badges1717 bronze badges ...
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How to handle button clicks using the XML onClick within Fragments

... savedInstanceState) { View v = inflater.inflate(R.layout.fragment_start, container, false); Button b = (Button) v.findViewById(R.id.StartButton); b.setOnClickListener(this); return v; } @Override public void onClick(View v) { switch (v.getId())...
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How can I send an HTTP POST request to a server from Excel using VBA?

...rplanet.com/flights.txt", Destination:=Range("A2")) .PostText = "origin_airport=MSN&destination_airport=ORD" .RefreshStyle = xlOverwriteCells .SaveData = True .Refresh End With Notes: Regarding output... I don't know if it's possible to return the results to the same cell tha...
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Python in Xcode 4+?

...ing on the triangle pointing to the right. Type in $(SRCROOT)/ (or $(SOURCE_ROOT)/) and then the name of the Python file you want to test. Remember, the Python program must be in the project folder. Otherwise, you will have to type out the full path (or relative path if it's in a subfolder of the pr...
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How to find Unused Amazon EC2 Security groups

...the same in command line as well Boto Code import boto ec2 = boto.connect_ec2() sgs = ec2.get_all_security_groups() for sg in sgs: print sg.name, len(sg.instances()) Output Security-Group-1 0 Security-Group-2 1 Security-Group-3 0 Security-Group-4 3 ...
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What's the difference between design patterns and architectural patterns?

... of concerns. Try reading on: http://en.wikipedia.org/wiki/Architectural_pattern_(computer_science) http://en.wikipedia.org/wiki/Design_pattern http://en.wikipedia.org/wiki/Anti-pattern share | ...
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How do I match any character across multiple lines in a regular expression?

... default. Boost's ECMAScript grammar allows you to turn this off with regex_constants::no_mod_m (source). As for oracle (it is POSIX based), use n option (demo): select regexp_substr('abcde' || chr(10) ||' fghij<Foobar>', '(.*)<Foobar>', 1, 1, 'n', 1) as results from dual POSIX-bas...
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Is the “struct hack” technically undefined behavior?

...ot strictly conforming http://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_051.html In the C99 Rationale document the C Committee adds: The validity of this construct has always been questionable. In the response to one Defect Report, the Committee decided that it was undefined behavior bec...