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How many String objects will be created when using a plus sign?
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Surprisingly, it depends.
If you do this in a method:
void Foo() {
String one = "1";
String two = "2";
String result = one + two + "34";
Console.Out.WriteLine(result);
}
then the compiler seems to emit the code using String.Concat as @Joac...
Best way to do Version Control for MS Excel
...right click on "ThisWorkbook" and select "View Code". You may have to pull down the select box at the top of the code window to change from "(General)" view to "Workbook" view.
Contents of "Workbook" view:
Private Sub Workbook_Open()
ImportCodeModules
End Sub
Private Sub Workbook_BeforeSave(ByV...
support FragmentPagerAdapter holds reference to old fragments
...o use those references independently of the ViewPager. As Seraph says, you do have guarantees that a fragment has been instantiated/added in a ViewPager at a particular time - this should be considered an implementation detail. A ViewPager does lazy loading of its pages; by default it only loads the...
How do I run a Node.js application as its own process?
....js
Restart=always
User=nobody
# Note Debian/Ubuntu uses 'nogroup', RHEL/Fedora uses 'nobody'
Group=nobody
Environment=PATH=/usr/bin:/usr/local/bin
Environment=NODE_ENV=production
WorkingDirectory=/var/www/myapp
[Install]
WantedBy=multi-user.target
Note if you're new to Unix: /var/www/myapp/app.j...
Controlling a USB power supply (on/off) with Linux
...wer for the information on the newer kernels.
# disable external wake-up; do this only once
echo disabled > /sys/bus/usb/devices/usb1/power/wakeup
echo on > /sys/bus/usb/devices/usb1/power/level # turn on
echo suspend > /sys/bus/usb/devices/usb1/power/level # turn off
(You may n...
How do you truncate all tables in a database using TSQL?
...e.
Thanks to Robert for pointing out the fact that disabling constraints does not allow to use truncate, the constraints would have to be dropped, and then recreated
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How do I write a Firefox Addon? [closed]
What are some resources for getting started writing a Firefox Addon? Is there an API guide somewhere? Is there a getting started tutorial somewhere? Is there a developer discussion board somewhere?
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How do I delete a Discipline in EPF Composer 1.5?
...le bit of google searches and I understand what you are looking for can be done through Configurations (select OpenUP in your Library view) and published View definitions.
See slide 83 and 84 of this PPT document. You should be able to take it from there.
An Introduction to the Eclipse Process Fra...
How do I drop a foreign key in SQL Server?
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I don't know MSSQL but would it not be:
alter table company drop **constraint** Company_CountryID_FK;
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How do I overload the [] operator in C# [duplicate]
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This is so super awesome. Can it be done in an interface? interface ICache { object this[string key] { get; set; } } Edit: Yes.
– Michael
Sep 19 '12 at 20:45
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