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How do I iterate through the files in a directory in Java?
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If you are using Java 1.7, you can use java.nio.file.Files.walkFileTree(...).
For example:
public class WalkFileTreeExample {
public static void main(String[] args) {
Path p = Paths.get("/usr");
FileVisitor<Path> fv = new SimpleFi...
What's the difference between a single precision and double precision floating point operation?
...ro and S is 0, then V=Infinity
If 0<E<255 then V=(-1)**S * 2 ** (E-127) * (1.F) where "1.F" is
intended to represent the binary number created by prefixing F with an
implicit leading 1 and a binary point.
If E=0 and F is nonzero, then V=(-1)**S * 2 ** (-126) * (0.F). These
are "unnormalized" ...
How to set the Default Page in ASP.NET?
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If using IIS 7 or IIS 7.5 you can use
<system.webServer>
<defaultDocument>
<files>
<clear />
<add value="CreateThing.aspx" />
</files>
</defaultDocume...
How to subtract X day from a Date object in Java?
...te out = Date.from(ldt.atZone(ZoneId.systemDefault()).toInstant());
Java 7 and earlier
Use Calendar's add() method
Calendar cal = Calendar.getInstance();
cal.setTime(dateInstance);
cal.add(Calendar.DATE, -30);
Date dateBefore30Days = cal.getTime();
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Get Android .apk file VersionName or VersionCode WITHOUT installing apk
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edited Feb 7 '17 at 18:08
ToolmakerSteve
5,19977 gold badges6161 silver badges133133 bronze badges
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Cosmic Rays: what is the probability they will affect a program?
...or per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute and occupies 20 MB of RAM, then the failure probability would be
60 × 20 × 1024²
1 - (1 - 1.4e-15) ...
How to open, read, and write from serial port in C?
...locking (fd, 0); // set no blocking
write (fd, "hello!\n", 7); // send 7 character greeting
usleep ((7 + 25) * 100); // sleep enough to transmit the 7 plus
// receive 25: approx 100 uS per char transmit
char buf [100];
int ...
How can I convert a long to int in Java?
...t i = (int) l;
Note, however, that large numbers (usually larger than 2147483647 and smaller than -2147483648) will lose some of the bits and would be represented incorrectly.
For instance, 2147483648 would be represented as -2147483648.
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How do I know that the UICollectionView has been loaded completely?
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klefevre
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answered Oct 24 '14 at 2:02
Cullen SUNCullen ...