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Differences between cookies and sessions?

I am training in web developement and am learning about JSP & Servlets . I have some knowledge of HttpSession - I have used it in some of my sample projects. ...
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Interfaces with static fields in java for sharing 'constants'

I'm looking at some open source Java projects to get into Java and notice a lot of them have some sort of 'constants' interface. ...
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How to sort the letters in a string alphabetically in Python

Is there an easy way to sort the letters in a string alphabetically in Python? 7 Answers ...
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Value of i for (i == -i && i != 0) to return true in Java

I have the following if condition. 6 Answers 6 ...
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Cannot open database “test” requested by the login. The login failed. Login failed for user 'xyz\ASP

I have created a web service which is saving some data into to db. But I am getting this error: 23 Answers ...
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How to check if a user is logged in (how to properly use user.is_authenticated)?

I am looking over this website but just can't seem to figure out how to do this as it's not working. I need to check if the current site user is logged in (authenticated), and am trying: ...
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Why are local variables not initialized in Java?

...lt that local variables should not be given a default value? Seriously, if instance variables can be given a default value, then why can't we do the same for local variables? ...
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What is the difference between Strategy design pattern and State design pattern?

... between the Strategy design pattern and the State design pattern? I was going through quite a few articles on the web but could not make out the difference clearly. ...
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Python concatenate text files

...e2.txt', ...] . I want to write a Python script to concatenate these files into a new file. I could open each file by f = open(...) , read line by line by calling f.readline() , and write each line into that new file. It doesn't seem very "elegant" to me, especially the part where I have to read//...
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Eclipse error: indirectly referenced from required .class files?

I got an error in Eclipse. What does this error message means: 20 Answers 20 ...