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Email Address Validation in Android on EditText [duplicate]

How can we perform Email Validation on edittext in android ? I have gone through google & SO but I didn't find out a simple way to validate it. ...
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Use of def, val, and var in scala

These lines of code outputs 12 , even though person.age=20 was successfully executed. I found that this happens because I used def in def person = new Person("Kumar",12) . If I use var or val the output is 20 . I understand the default is val in scala. This: ...
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Rolling or sliding window iterator?

I need a rolling window (aka sliding window) iterable over a sequence/iterator/generator. Default Python iteration can be considered a special case, where the window length is 1. I'm currently using the following code. Does anyone have a more Pythonic, less verbose, or more efficient method for d...
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How To Change DataType of a DataColumn in a DataTable?

I have: 12 Answers 12 ...
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Extract a substring according to a pattern

Suppose I have a list of string: 8 Answers 8 ...
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Return value in a Bash function

I am working with a bash script and I want to execute a function to print a return value: 9 Answers ...
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Why do function pointer definitions work with any number of ampersands '&' or asterisks '*'?

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How to describe “object” arguments in jsdoc?

But how do I describe how the parameters object should be structured? For example it should be something like: 6 Answers ...
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Doctrine2: Best way to handle many-to-many with extra columns in reference table

I'm wondering what's the best, the cleanest and the most simply way to work with many-to-many relations in Doctrine2. 14 A...
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Search and replace a line in a file in Python

I want to loop over the contents of a text file and do a search and replace on some lines and write the result back to the file. I could first load the whole file in memory and then write it back, but that probably is not the best way to do it. ...