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Java SafeVarargs annotation, does a standard or best practice exist?
...nts go here)... }.
This works well when the varargs type is concrete like String.... When it's a type variable like T..., it also works when T is known to be a concrete type for that call. e.g. if the method above were part of a class Foo<T>, and you have a Foo<String> reference, then c...
How to get an object's property's value by property name?
...Shell, how do you get an object's property value by specifying its name (a string)? I want something like the following:
6 ...
How do I find a “gap” in running counter with SQL?
...en this would find only 3. What I'd love it to find is 3-10 instead - basically the beginning and the end of every gap. I understand that I might have to write my own python script that leverages SQL (in my case MySql), but it would be nice if SQL could get me closer to what I want (I have a table w...
Reshaping data.frame from wide to long format
...s melt/cast. Here is a solution with reshape, assuming your data frame is called d:
reshape(d,
direction = "long",
varying = list(names(d)[3:7]),
v.names = "Value",
idvar = c("Code", "Country"),
timevar = "Year",
times = 1950:1954)
...
How can I read a text file without locking it?
...eamReader(fs))
{
while (!fs.EndOfStream)
{
string line = fs.ReadLine();
// Your code here
}
}
}
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Python glob multiple filetypes
....glob in python to get a list of multiple file types such as .txt, .mdown, and .markdown? Right now I have something like this:
...
How to deselect a selected UITableView cell?
... edited Oct 14 '16 at 13:04
Aland Kawa
5311 silver badge1212 bronze badges
answered Oct 19 '10 at 12:04
Saik...
Why should a Java class implement comparable?
...
Here is a real life sample. Note that String also implements Comparable.
class Author implements Comparable<Author>{
String firstName;
String lastName;
@Override
public int compareTo(Author other){
// compareTo should return < 0...
Tainted canvases may not be exported
... likely on your local drive!).
While testing try these workarounds:
Put all page related files (.html, .jpg, .js, .css, etc) on your desktop (not in sub-folders).
Post your images to a site that supports cross-domain sharing (like dropbox.com). Be sure you put your images in dropbox's public fol...
Number of lines in a file in Java
... linux' wc -l command takes 0.15 seconds.
public static int countLinesOld(String filename) throws IOException {
InputStream is = new BufferedInputStream(new FileInputStream(filename));
try {
byte[] c = new byte[1024];
int count = 0;
int readChars = 0;
boolean...