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How to check whether a file is empty or not?
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if for some reason you already had the file open you could try this:
>>> with open('New Text Document.txt') as my_file:
... # I already have file open at this point.. now what?
... my_file.seek(0) #ensure you're at the start of the ...
How to add http:// if it doesn't exist in the URL?
How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answe...
How do I access my SSH public key?
...l cat ~/.ssh/id_rsa.pub
explanation
cat is a standard Unix utility that reads files and prints output
~ Is your Home User path
/.ssh - your hidden directory contains all your ssh certificates
id_rsa.pub OR id_dsa.pub are RSA public keys, (the private key located on the client machine). the primar...
What's up with Java's “%n” in printf?
I'm reading Effective Java and it uses %n for the newline character everywhere. I have used \n rather successfully for newline in Java programs.
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How to insert a value that contains an apostrophe (single quote)?
...$linkQuestion = str_replace ("'","''", $linkQuestion);(gosh that's hard to read!)
– user462990
May 3 '16 at 13:52
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Programmatically change UITextField Keyboard type
...boardTypeASCIICapable, // Deprecated
} UIKeyboardType;
Your code should read
if(user is prompted for numeric input only)
[textField setKeyboardType:UIKeyboardTypeNumberPad];
if(user is prompted for alphanumeric input)
[textField setKeyboardType:UIKeyboardTypeDefault];
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Something like 'contains any' for Java set?
...the set" to worry about in this case. The implementation is interesting to read here, and/or see the javadoc: google.github.io/guava/releases/21.0/api/docs/com/google/common/…
– chut
Sep 29 '18 at 23:14
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How to hide TabPage from TabControl [duplicate]
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Solutions provided so far are way too complicated.
Read the easiest solution at:
http://www.codeproject.com/Questions/614157/How-to-Hide-TabControl-Headers
You could use this method to make them invisible at run time:
private void HideAllTabsOnTabControl(TabControl theTabCo...
How to update attributes without validation
...date_column. A lot can change in two years! :) Thanks for pointing it out. Read more about it here: groups.google.com/forum/?hl=en&fromgroups#!topic/…
– Joshua Pinter
Mar 19 '15 at 14:18
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round up to 2 decimal places in java? [duplicate]
I have read a lot of stackoverflow questions but none seems to be working for me. i am using math.round() to round off.
this is the code:
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