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How to return an array from JNI to Java?
...rays.
The following for loop creates the inner arrays which are of type int[] using the JNI function NewIntArray(). If you just wanted to return a single dimensional array of ints, then the NewIntArray() function is what you'd use to create the return value. If you wanted to create a single dim...
Java default constructor
... your example, it would look like this assuming that the types are String, int and int, and that the class itself is public:
public Module()
{
super();
this.name = null;
this.credits = 0;
this.hours = 0;
}
This is exactly the same as
public Module()
{}
And exactly the same as having no...
Android read text raw resource file
...txtHelp.setText(new String(b));
} catch (Exception e) {
// e.printStackTrace();
txtHelp.setText("Error: can't show help.");
}
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...
How can I count the number of matches for a regex?
...ve to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
public static void main(String[] args) {
...
How to assign a Git SHA1's to a file without Git?
...uteHash
|> Array.fold (fun acc e ->
let t = System.Convert.ToString(e, 16)
if t.Length = 1 then acc + "0" + t else acc + t)
""
/// Calculates the SHA1 like git
let calcGitSHA1 (text:string) =
let s = text.Replace("\r\n","\n")
sprintf "blob %d%c%...
How to store CGRect values in NSMutableArray?
...
Store string in array.and then get back string and convert that in CGRect back as per the need.
CGRect rect = CGRectMake( 5, 5, 40, 30 );
NSString* rectAsString = NSStringFromCGRect( rect );
NSMutableArray* array = [NSMutableArray mutableArray];
[array addObject:rectAsString]...
C++ equivalent of StringBuffer/StringBuilder?
...e stream
ss << 4.5 << ", " << 4 << " whatever";
//convert the stream buffer into a string
std::string str = ss.str();
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How do I get the list of keys in a Dictionary?
...
You should be able to just look at .Keys:
Dictionary<string, int> data = new Dictionary<string, int>();
data.Add("abc", 123);
data.Add("def", 456);
foreach (string key in data.Keys)
{
Console.WriteLine(key);
}
...
Defining a function with multiple implicit arguments in Scala
... list must be the last one.
def myfun(arg:String)(implicit p1: String, p2:Int)={}
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...
Pointer vs. Reference
...
My rule of thumb is:
Use pointers if you want to do pointer arithmetic with them (e.g. incrementing the pointer address to step through an array) or if you ever have to pass a NULL-pointer.
Use references otherwise.
...