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In C# what is the difference between ToUpper() and ToUpperInvariant()?
...
public class Test
{
[STAThread]
static void Main()
{
string invariant = "iii".ToUpperInvariant();
CultureInfo turkey = new CultureInfo("tr-TR");
Thread.CurrentThread.CurrentCulture = turkey;
string cultured = "iii".ToUpper();
Font bigFont = new ...
How to create a memory leak in Java?
...eClass {
static final ArrayList list = new ArrayList(100);
}
Calling String.intern() on lengthy String
String str=readString(); // read lengthy string any source db,textbox/jsp etc..
// This will place the string in memory pool from which you can't remove
str.intern();
(Unclosed) open strea...
How to upload files to server using JSP/Servlet?
..., HttpServletResponse response) throws ServletException, IOException {
String description = request.getParameter("description"); // Retrieves <input type="text" name="description">
Part filePart = request.getPart("file"); // Retrieves <input type="file" name="file">
String fi...
Why does String.valueOf(null) throw a NullPointerException?
according to the documentation, the method String.valueOf(Object obj) returns:
4 Answers
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How would one write object-oriented code in C? [closed]
...rtainly do interfaces and multiple inheritence in C but it's a fair bit of extra work, and you have to manage the smarts yourself rather than using C++ built-in stuff.
– paxdiablo
Jul 7 '14 at 22:05
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How to convert a string to integer in C?
I am trying to find out if there is an alternative way of converting string to integer in C.
12 Answers
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Convert a character digit to the corresponding integer in C
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If, by some crazy coincidence, you want to convert a string of characters to an integer, you can do that too!
char *num = "1024";
int val = atoi(num); // atoi = ASCII TO Int
val is now 1024. Apparently atoi() is fine, and what I said about it earlier only applies to me (on O...
Pad a string with leading zeros so it's 3 characters long in SQL Server 2008
I have a string that is up to 3 characters long when it's first created in SQL Server 2008 R2.
17 Answers
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Why does Oracle 9i treat an empty string as NULL?
...efore there was a SQL standard, Oracle made the design decision that empty strings in VARCHAR/VARCHAR2 columns were NULL and that there was only one sense of NULL (there are relational theorists that would differentiate between data that has never been prompted for, data where the answer exists but ...
Converting string to byte array in C#
...e array was created like this:
byte[] bytes = Encoding.ASCII.GetBytes(someString);
You will need to turn it back into a string like this:
string someString = Encoding.ASCII.GetString(bytes);
If you can find in the code you inherited, the encoding used to create the byte array then you should b...