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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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Using Spring MVC Test to unit test multipart POST request

...e me this example but with PATCH method? – lalilulelo_1986 Mar 17 at 15:53 add a comment  |  ...
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Is it possible to make a type only movable and not copyable?

...g. struct Triplet { one: int, two: int, three: int, _marker: NoCopy } You can also do it by having a destructor (via implementing the Drop trait), but using the marker types is preferred if the destructor is doing nothing. Types now move by default, that is, when you d...
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Can I set up HTML/Email Templates with ASP.NET?

...that forces me to have a look at other engines. – der_chirurg Sep 24 '13 at 9:55 add a commen...
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How to check if the user can go back in browser history or not

... Does not work if a window was opened with target="_blank" to force a new window. The back button on the browser won't work, but there will be a document.referrer – Mike_K Mar 26 '13 at 15:54 ...
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How do you set the Content-Type header for an HttpClient request?

... ?? typeof(System.Net.Http.Headers.HttpRequestHeaders) .GetField("s_invalidHeaders", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static); if (field != null) { var invalidFields = (HashSet<string>)field.GetValue(null); invalidFields.Remove("Content-Type...
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Android custom dropdown/popup menu

...To create a popup menu in android with Java: Create a layout file activity_main.xml under res/layout directory which contains only one button. Filename: activity_main.xml <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/to...
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How do I force files to open in the browser instead of downloading (PDF)?

... that gives the file path, that we open in new tab using:window.open(url, '_blank').focus(); – Kailas Dec 17 '14 at 12:21 3 ...
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Check if application is on its first run [duplicate]

... here prefs = getSharedPreferences("com.mycompany.myAppName", MODE_PRIVATE); } @Override protected void onResume() { super.onResume(); if (prefs.getBoolean("firstrun", true)) { // Do first run stuff here then set 'firstrun' as false // u...
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What are the differences between a HashMap and a Hashtable in Java?

...shMap better for non-threaded applications, as unsynchronized Objects typically perform better than synchronized ones. Hashtable does not allow null keys or values. HashMap allows one null key and any number of null values. One of HashMap's subclasses is LinkedHashMap, so in the event that you'd wa...