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How do I use Java to read from a file that is actively being written to?
...{
if( reader.available() > 0 ) {
System.out.print( (char)reader.read() );
}
else {
try {
sleep( 500 );
}
catch( InterruptedException ex ) {
running = false;
}
}
}
}
Of...
Multiline strings in JSON
...for escaping the backslash, otherwise python will treat \n as
the control character "new line"
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What is the difference between UTF-8 and Unicode?
...r wants to use. Also, when a text editor program reads a file, it needs to select a text encoding scheme to decode it correctly. Same goes when you are typing and entering a letter, the text editor needs to know what scheme you use so that it will save it correctly.
– Cheng
...
Smart way to truncate long strings
...rd" and "soft" limits, like, for example, if the string is longer than 500 character, truncate it to 400. This may be useful, when the user wants to see the whole text and clicks some link for it. If, as a result, you load just 1 or 2 chars more, it will look really ugly.
– Max...
What is stack unwinding?
...tion with exception handling. Here's an example:
void func( int x )
{
char* pleak = new char[1024]; // might be lost => memory leak
std::string s( "hello world" ); // will be properly destructed
if ( x ) throw std::runtime_error( "boom" );
delete [] pleak; // will only get here...
How to initialize private static members in C++?
... above if the static member variable is of const int type (e.g. int, bool, char). You can then declare and initialize the member variable directly inside the class declaration in the header file:
class foo
{
private:
static int const i = 42;
};
...
What is the max size of localStorage values?
... Doesn't crash Chrome anymore... Interesting point: 5MB equals 2.5 Million chars on Chrome. So apparently, UFT16 is used for localStore.
– Felix Alcala
Sep 3 '11 at 17:10
1
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Regexp Java for password validation
...per case letter must occur at least once
(?=.*[@#$%^&+=]) # a special character must occur at least once
(?=\S+$) # no whitespace allowed in the entire string
.{8,} # anything, at least eight places though
$ # end-of-string
It's easy to add, modify or remo...
How to write iOS app purely in C
... full function declaration, like this:
// int UIApplicationMain (int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName);
// So, we rely on the fact that for both the i386 & ARM architectures,
// the registers for parameters passed in remain the same whether or not
/...
Difference between >>> and >>
...as really refering to (imho), is that a String could also be regarded as a char[]. He's not saying that a char is not a number ; he's just saying that it's an unsigned number. I think that's where he's lost.
– bvdb
Aug 17 '15 at 10:33
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