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How should I validate an e-mail address?
What's a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp?
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Required tags not present when using Delphi XML Data Binding Wizard
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Not sure to understand but maybe what you are looking for is : use="optional"
<xs:element name="MyReport" type="MyReportType" />
<xs:complexType name="MyReportType">
<xs:all>
<xs:element name="Header" type="HeaderType" use="optional" />
<xs:e...
Does adding a duplicate value to a HashSet/HashMap replace the previous value
...on't do a check on the backing HashMap to see if the key already exists before calling put on the backing map?
– mystarrocks
Jun 9 '14 at 21:36
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runOnUiThread vs Looper.getMainLooper().post in Android
...ill ensure that the View has been properly constructed and has a layout before the code is executed.
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What's the key difference between HTML 4 and HTML 5?
...eral goals which differentiate it from HTML4.
Consistency in Handling Malformed Documents
The primary one is consistent, defined error handling. As you know, HTML purposely supports 'tag soup', or the ability to write malformed code and have it corrected into a valid document. The problem is tha...
How do you avoid over-populating the PATH Environment Variable in Windows?
...are the approaches that you use to manage the executables in your system. For example I have almost everything accessible through the command line, but now I come to the limit of the path string, so i can't add any more dir.
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What is the difference between IEqualityComparer and IEquatable?
...t;T> and IEquatable<T> should be used.
The MSDN documentation for both looks very similar.
5 Answers
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When should one use RxJava Observable and when simple Callback on Android?
I'm working on networking for my app. So I decided to try out Square's Retrofit . I see that they support simple Callback
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Why does instanceof return false for some literals?
...objects created from within Javascript. From the Mozilla API docs:
var color1 = new String("green");
color1 instanceof String; // returns true
var color2 = "coral";
color2 instanceof String; // returns false (color2 is not a String object)
I can't find any way to construct primitive types with co...
How To Accept a File POST
...ion I am currently using. Does anyone know of an example how this should work?
13 Answers
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