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How to read and write excel file
I want to read and write an Excel file from Java with 3 columns and N rows, printing one string in each cell. Can anyone give me simple code snippet for this? Do I need to use any external lib or does Java have built-in support for it?
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What does “opt” mean (as in the “opt” directory)? Is it an abbreviation? [closed]
...the "opt" directory)? I commonly see this directory in Unix systems with development tools inside.
5 Answers
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Can I install Python 3.x and 2.x on the same Windows computer?
I'm running Windows and the shell/OS automatically runs Python based on the registry settings when you run a program on the command line. Will this break if I install a 2.x and 3.x version of Python on the same machine?
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Is there a short cut for going back to the beginning of a file by vi editor?
When reading a long file by vi editor, it would be very nice to get back to the beginning of the file by some short cuts when you really need to do so. Even ctrl + B sometimes is too slow. Does anyone know such a tool?
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problem with and :after with CSS in WebKit
I would like to add some style on a select box with the pseudo :after (to style my select box with 2 parts and without images). Here's the HTML:
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How can I remove the first line of a text file using bash/sed script?
I need to repeatedly remove the first line from a huge text file using a bash script.
16 Answers
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How to check that a string is a palindrome using regular expressions?
That was an interview question that I was unable to answer:
32 Answers
32
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Split string to equal length substrings in Java
How to split the string "Thequickbrownfoxjumps" to substrings of equal size in Java.
Eg. "Thequickbrownfoxjumps" of 4 equal size should give the output.
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How to convert JSON data into a Python object
I want to use Python to convert JSON data into a Python object.
21 Answers
21
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Programmatically add custom event in the iPhone Calendar
Is there any way to add iCal event to the iPhone Calendar from the custom App?
11 Answers
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