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Why does changing the sum order returns a different result?
...ory, floating points use a special format along the lines of IEEE 754 (the converter provides much better explanation than I can).
Anyways, here's the float converter.
http://www.h-schmidt.net/FloatConverter/
The thing about the order of operations is the "fineness" of the operation.
Your first ...
Easy way of running the same junit test over and over?
...) {
}
@Test
public void runsTenTimes() {
System.out.println("run");
}
}
With the above, it is possible to even do it with a parameter-less constructor, but I'm not sure if the framework authors intended that, or if that will break in the future.
If you are implementing yo...
Smooth GPS data
...n be ignored, because if you put scaling factors into the Kalman filter to convert them all into the same units, then those scaling factors end up cancelling out when converting the results back into the original units.
The code could be improved, because it assumes that the best estimate of curren...
Java SafeVarargs annotation, does a standard or best practice exist?
...a simple "re-writing" at compile-time: a varargs parameter of type X... is converted into a parameter of type X[]; and every time a call is made to this varargs method, the compiler collects all of the "variable arguments" that goes in the varargs parameter, and creates an array just like new X[] { ...
What does `someObject.new` do in Java?
... uses the this instance of the container by default:
public class Foo {
int val;
public Foo(int v) { val = v; }
class Bar {
public void printVal() {
// this is the val belonging to our containing instance
System.out.println(val);
}
}
public Bar createBar() {
retu...
Android:What is difference between setFlags and addFlags for intent
What is difference between setFlags and addFlags for intent. Could any one explain it please.
Help Appreciated.
3 Answers
...
Android encryption / decryption using AES [closed]
...r key derivation and AES in CBC or GCM mode (GCM provides both privacy and integrity)
You could use functions like these:
private static byte[] encrypt(byte[] raw, byte[] clear) throws Exception {
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
Cipher cipher = Cipher.getInstance("AES...
What is The Rule of Three?
...
Introduction
C++ treats variables of user-defined types with value semantics.
This means that objects are implicitly copied in various contexts,
and we should understand what "copying an object" actually means.
Let us conside...
split string only on first instance - java
...
string.split("=", 2);
As String.split(java.lang.String regex, int limit) explains:
The array returned by this method contains each substring of this string that is terminated by another substring that matches the given expression or is terminated by the end of the string. The substr...
Create a GUID in Java
...e and time", [1] MAC address or name, and [2] current date-time, as constraints.
– Basil Bourque
Jul 16 '15 at 21:28
...