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Avoiding instanceof in Java
... Why do you iterate over all methods instead of using getMethod(String name, Class<?>... parameterTypes)? Or else I would replace == with isAssignableFrom for the parameter's type check.
– Aleksandr Dubinsky
Jan 22 '15 at 16:24
...
Java's Interface and Haskell's type class: differences and similarities?
...exible than interfaces. How would you define an interface for converting a string to some value or instance of the implementing type? It's certainly not impossible, but the result would not be intuitive or elegant. Have you ever wished it was possible to implement an interface for a type in some com...
What is CMake equivalent of 'configure --prefix=DIR && make all install '?
...ide hints to the CMake GUI as stated, everything in CMake is effectively a string, but setting PATH, FILEPATH, STRING, BOOL etc help the GUI to present a more appropriate widget.
– Marcus D. Hanwell
May 22 '13 at 16:54
...
MySQL IF NOT NULL, then display 1, else display 0
...eturns 0. Thus, you have to remember to explicitly check for NULL or empty string:
select if(name is null or name = '', 0, 1)
PS Eugen's example up above is correct, but I wanted to clarify this nuance as it caught me by surprise.
...
Run an exe from C# code
...void LaunchCommandLineApp()
{
// For the example
const string ex1 = "C:\\";
const string ex2 = "C:\\Dir";
// Use ProcessStartInfo class
ProcessStartInfo startInfo = new ProcessStartInfo();
startInfo.CreateNoWindow = false;
startInfo.UseShe...
Static Classes In Java
...from above:
public class TestMyStaticClass {
public static void main(String []args){
MyStaticClass.setMyStaticMember(5);
System.out.println("Static value: " + MyStaticClass.getMyStaticMember());
System.out.println("Value squared: " + MyStaticClass.squareMyStaticMember()...
Can Mockito capture arguments of a method called multiple times?
...reating a class that implements ArgumentMatcher<T>. Overriding the toString method in your implementation will provide any message you want in the mockito test output.
– Noah Solomon
Sep 26 '19 at 19:25
...
Using the “final” modifier whenever applicable in Java [closed]
...igned more than once, you discourage overbroad scoping. Instead of this:
String msg = null;
for(int i = 0; i < 10; i++) {
msg = "We are at position " + i;
System.out.println(msg);
}
msg = null;
You are encouraged to use this:
for(int i = 0; i < 10; i++) {
final String m...
Const in JavaScript: when to use it and is it necessary?
... You should say that this "immutable" behaviour is only applicable to Strings, Basic Types. Using Objects, Arrays etc. it is possible to change the values but it is not possible to re-assign an new "Object", e.g. const a = ["a","b"]; a = []; will throw an error otherwise it is possible
...
Why do I get “Procedure expects parameter '@statement' of type 'ntext/nchar/nvarchar'.” when I try t
...
The solution is to put an N in front of both the type and the SQL string to indicate it is a double-byte character string:
DECLARE @SQL NVARCHAR(100)
SET @SQL = N'SELECT TOP 1 * FROM sys.tables'
EXECUTE sp_executesql @SQL
...