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Hash Map in Python
...ent a HashMap in Python. I want to ask a user for an input. depending on his input I am retrieving some information from the HashMap. If the user enters a key of the HashMap, I would like to retrieve the corresponding value.
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Oracle JDBC ojdbc6 Jar as a Maven Dependency
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It is better to add new Maven repository (preferably using your own artifactory) to your project instead of installing it to your local repository.
Maven syntax:
<dependency>
<groupId>com.oracle</groupId>...
R and version control for the solo data analyst
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I feel the answer to your question is a resounding yes- the benefits of managing your files with a version control system far outweigh the costs of implementing such a system.
I will try to respond in detail to some of the points you raised:
Backup: I ...
What are the options for storing hierarchical data in a relational database? [closed]
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My favorite answer is as what the first sentence in this thread suggested. Use an Adjacency List to maintain the hierarchy and use Nested Sets to query the hierarchy.
The problem up until now has been that the coversion method from an Adjacec...
Create a string with n characters
Is there a way in java to create a string with a specified number of a specified character? In my case, I would need to create a string with 10 spaces. My current code is:
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How do I change the value of a global variable inside of a function
...lue from inside a function and use it from another function, how do I do this?
5 Answers
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How does Trello access the user's clipboard?
When you hover over a card in Trello and press Ctrl + C , the URL of this card is copied to the clipboard. How do they do this?
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How do I rename a column in a database table using SQL?
If I wish to simply rename a column (not change its type or constraints, just its name) in an SQL database using SQL, how do I do that? Or is it not possible?
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Block Comments in Clojure
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Actually, there is a way!
(comment
(defn hey []
("Hey there!"))
Check me out!
)
Just wrap your comments in (comment ..) :)
Have fun!
share
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Converting a string to a date in JavaScript
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The best string format for string parsing is the date ISO format together with the JavaScript Date object constructor.
Examples of ISO format: YYYY-MM-DD or YYYY-MM-DDTHH:MM:SS.
But wait! Just using the "ISO format" doesn't work reliably by itself. String are som...