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Difference between string object and string literal [duplicate]
...terals refer the same object:
String a = "abc";
String b = "abc";
System.out.println(a == b); // true
Here, 2 different objects are created and they have different references:
String c = new String("abc");
String d = new String("abc");
System.out.println(c == d); // false
In general, you sh...
What's the difference between SortedList and SortedDictionary?
...
Yes, look at the bottom part of this article. It turns out BDictionary is usually slower than SortedDictionary except for very large sizes, but it is faster than SortedList if there are over 700 items or so. Memory use should be only slightly higher than SortedList (much lower th...
Batch files - number of command line arguments
...
Have tested this out to 2500 arguments as a function and used it to define arrays of same size. Dont ask me why exactly. Mostly just learning what batch is capable of.
– T3RR0R
Jan 4 at 12:56
...
Remove redundant paths from $PATH variable
...trick helps when I want to have new PATH right away, and don't want to log out of current terminal. However, to avoid messing up, one should experiment with the PATH generating command (i.e. echo $PATH | sed -e 's/:\/home\/wrong\/dir\/$//') before assigning it to PATH.
– biocyb...
Reading a UTF8 CSV file with Python
...ield2, field3 in reader:
print field1, field2, field3
PS: if it turns out that your input data is NOT in utf-8, but e.g. in ISO-8859-1, then you do need a "transcoding" (if you're keen on using utf-8 at the csv module level), of the form line.decode('whateverweirdcodec').encode('utf-8') -- but ...
How to keep environment variables when using sudo
...re. For example after setting HTTP_PROXY the command wget works fine without sudo . However if I type sudo wget it says it can't bypass the proxy setting.
...
The Use of Multiple JFrames: Good or Bad Practice? [closed]
... any number of ways of displaying many elements in one GUI, e.g.:
CardLayout (short demo.). Good for:
Showing wizard like dialogs.
Displaying list, tree etc. selections for items that have an associated component.
Flipping between no component and visible component.
JInternalFrame/JDesktopPane ...
Can bash show a function's definition?
...bar
foobar is a function
foobar {
echo "I'm foobar"
}
This does find out what foobar was, and if it was defined as a function it calls declare -f as explained by pmohandras.
To print out just the body of the function (i.e. the code) use sed:
type foobar | sed '1,3d;$d'
...
How to connect to LocalDB in Visual Studio Server Explorer?
...local computer. The program runs and entries are added to the database and outputted in the console. But when the article says "check your localdb" it doesn't say how! I don't see any '.mdf' or '.ldf' files created under the project folder. I tried every way to connect Visual Studio's Server Explore...
How to check if remote branch exists on a given remote repository?
...emote repository. The problem is that the remote repository is not checked out locally, so I can't use git branch -r . All I have is a remote address, something like this https://github.com/project-name/project-name.git . Is there a way to list remote branches just by a remote address? I couldn...