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how to get the one entry from hashmap without iterating
Is there a elegant way of obtaining only one Entry<K,V> from HashMap, without iterating, if key is not known.
14 An...
Linux command to print directory structure in the form of a tree
Is there any linux command that I can call from a Bash script that will print the directory structure in the form of a tree, e.g.,
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Hide/Show Column in an HTML Table
I have an HTML table with several columns and I need to implement a column chooser using jquery. When a user clicks on a checkbox I want to hide/show the corresponding column in the table. I would like to do this without attaching a class to every td in the table, is there a way to select an entir...
Most efficient conversion of ResultSet to JSON?
The following code converts a ResultSet to a JSON string using JSONArray and JSONObject .
14 Answers
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Which version of C# am I using
I want to find out which version of C# I'm using.
If I would be using python I would do something like python -V from the command line, or type:
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How to get index using LINQ? [duplicate]
Given a datasource like that:
7 Answers
7
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How to write PNG image to string with the PIL?
I have generated an image using PIL . How can I save it to a string in memory?
The Image.save() method requires a file.
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Is there a way to ignore header lines in a UNIX sort?
I have a fixed-width-field file which I'm trying to sort using the UNIX (Cygwin, in my case) sort utility.
12 Answers
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A variable modified inside a while loop is not remembered
In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the sense that its value is remembered after the if statement. However, when I set the same variable to the value 2 inside an if which is inside a while statement, it's forgotten af...
How can I check if my python object is a number? [duplicate]
In Java the numeric types all descend from Number so I would use
5 Answers
5
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