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How to check edittext's text is email address or not?

... /** * method is used for checking valid email id format. * * @param email * @return boolean true for valid false for invalid */ public static boolean isEmailValid(String email) { String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$"; Pattern pattern = Pattern.compile(ex...
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Storing integer values as constants in Enum manner in java [duplicate]

....Value, difficulty); } /** * Get difficulty from value * @param value Value * @return Difficulty */ public static Difficulty from(int value) { return _map.get(value); } } share ...
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PHP/MySQL insert row then get 'id'

...new = $databaseConnection->prepare($query_new); $query_new->bind_param('s', $_POST['coursename']); $query_new->execute(); $course_id = $query_new->insert_id; $query_new->close(); The code line $course_id = $query_new->insert_id; will display the ID of the last ins...
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How can I make Bootstrap columns all the same height?

... Solution 4 using Bootstrap 4 Bootstrap 4 uses Flexbox so there is no need for extra CSS. Demo <div class="container"> <div class="row "> <div class="col-md-4" style="background-color: red"> ...
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Tool to convert Python code to be PEP8 compliant

...e yourself a cup of coffee this tool happily removes all those pesky PEP8 violations which don't change the meaning of the code. Install it via pip: pip install autopep8 Apply this to a specific file: autopep8 py_file --in-place or to your project (recursively), the verbose option gives you some f...
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How to make a edittext box in a dialog

...l EditText input = new EditText(MainActivity.this); LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT); input.setLayoutParams(lp); alertDialog.setView(in...
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How does Angular $q.when work?

...se? does it mean the then callback of it will be passed the promise result param send by resolve? – Onur Topal Oct 17 '14 at 11:18 3 ...
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Convert string to List in one line?

... @Dan: I agree, and generally I do use the params overload. But for an answer to a question sometimes I feel like verbosity is better. Just a matter of opinion really. – Matt Greer Feb 16 '11 at 1:17 ...
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How do I prompt a user for confirmation in bash script? [duplicate]

..."echo" to get the cursor back on the next line. (just a raw "echo" with no params will do the trick) – AlexChaffee May 21 '11 at 4:00 13 ...
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Is there any connection string parser in C#?

...e me any trouble. It would be trivial to extend this to give info on other parameters (right now its only for simple things like db name, data source, username and password). Like this or so: static readonly string[] serverAliases = { "server", "host", "data source", "datasource", "address", ...