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Optimising Android application before release [closed]
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+100
At some point you are going to get to the point where using known tricks will hit their limits. The best thing to do at this point is...
Facebook database design?
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90
Keep a friend table that holds the UserID and then the UserID of the friend (we will call it Fri...
Difference between null and empty (“”) Java String
... can still invoke methods or functions on it like
a.length()
a.substring(0, 1)
and so on.
If the String equals null, like b, Java would throw a NullPointerException if you tried invoking, say:
b.length()
If the difference you are wondering about is == versus equals, it's this:
== compares ...
Removing duplicate rows in Notepad++
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answered Oct 18 '10 at 10:46
Colin PickardColin Pickard
42.2k1111 gold badges9191 silver badges142142 bronze badges
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How to clear variables in ipython?
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208
%reset seems to clear defined variables.
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How can I know if a process is running?
...ocess[] pname = Process.GetProcessesByName("notepad");
if (pname.Length == 0)
MessageBox.Show("nothing");
else
MessageBox.Show("run");
You can loop all process to get the ID for later manipulation:
Process[] processlist = Process.GetProcesses();
foreach(Process theprocess in processlist){
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Where do I find the bashrc file on Mac?
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– Michael Dimmitt
Feb 4 '17 at 16:05
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Best Practices for securing a REST API / web service [closed]
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answered Aug 11 '08 at 8:45
Greg HewgillGreg Hewgill
783k167167 gold badges10841084 silver badges12221222 bronze badges
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Node.js check if file exists
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230
Why not just try opening the file ? fs.open('YourFile', 'a', function (err, fd) { ... })
anyway ...
Set active tab style with AngularJS
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Rob JuurlinkRob Juurlink
3,80133 gold badges1515 silver badges1818 bronze badges
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