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Syntax for creating a two-dimensional array
...= new int[10];
multi[4] = new int[10];
Note that every element will be initialized to the default value for int, 0, so the above are also equivalent to:
int[][] multi = new int[][]{
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ 0, ...
What are all the escape characters?
...follow
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edited Jun 17 '16 at 22:14
dimo414
40.6k1616 gold badges121121 silver badges205205 bronze badges
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Selecting only numeric columns from a data frame
...
EDIT: updated to avoid use of ill-advised sapply.
Since a data frame is a list we can use the list-apply functions:
nums <- unlist(lapply(x, is.numeric))
Then standard subsetting
x[ , nums]
## don't use sapply, eve...
Path of assets in CSS files in Symfony 2
I have a CSS file with some paths in it (for images, fonts, etc.. url(..) ).
6 Answers
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What is so special about Generic.xaml?
...ure out how to organize my ResourceDictionary files for reuse and sharing with other members of my team.
2 Answers
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Rails server says port already used, how to kill that process?
... novices: in the second line of code, you are supposed to replace the PID with the actual number that is shown in your console upon entering the first line of code (eg, 12345).
– CodeBiker
Aug 7 '13 at 18:48
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Deploying just HTML, CSS webpage to Tomcat
I am just getting started on developing a website . All I have at the moment is a HTML page supported by a couple of CSS stylesheets .
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How to search through all Git and Mercurial commits in the repository for a certain string?
I have a Git repository with few branches and dangling commits. I would like to search all such commits in repository for a specific string.
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...n the shell:
ls somefile
echo $?
If somefile exists (regardless whether it is a file or directory), you will get the return value thrown by the ls command, which should be 0 (default "success" return value). If it doesn't exist, you should get a number other then 0. The exact number depends on th...
Wrapping null-returning method in Java with Option in Scala?
...ave a method session.get(str: String): String but you don't know whether it will return you a string or a null, because it comes from Java.
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