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How to name variables on the fly?

Is it possible to create new variable names on the fly? 6 Answers 6 ...
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How do you save/store objects in SharedPreferences on Android?

I need to get user objects in many places, which contain many fields. After login, I want to save/store these user objects. How can we implement this kind of scenario? ...
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Does Python's time.time() return the local or UTC timestamp?

... The time.time() function returns the number of seconds since the epoch, as seconds. Note that the "epoch" is defined as the start of January 1st, 1970 in UTC. So the epoch is defined in terms of UTC and establishes a global moment in time. No matter where you ar...
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Is there a difference between single and double quotes in Java?

Is there a difference between single and double quotes in Java? 4 Answers 4 ...
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How do I use vim registers?

I only know of one instance using registers is via Ctrl R * whereby I paste text from a clipboard. 16 Answers ...
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jQuery: Performing synchronous AJAX requests

I've done some jQuery in the past, but I am completely stuck on this. I know about the pros and cons of using synchronous ajax calls, but here it will be required. ...
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Creating a expressjs middleware that accepts parameters

... am trying to create a middleware that can accept parameters. How can this be done? 4 Answers ...
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How to convert a column number (e.g. 127) into an Excel column (e.g. AA)

How do you convert a numerical number to an Excel column name in C# without using automation getting the value directly from Excel. ...
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Is there a regular expression to detect a valid regular expression?

Is it possible to detect a valid regular expression with another regular expression? If so please give example code below. ...
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How to add column if not exists on PostgreSQL?

Question is simple. How to add column x to table y , but only when x column doesn't exist ? I found only solution here how to check if column exists. ...