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Java: Class.this
...{
// Prints "An anonymous Runnable"
System.out.println(this.toString());
// Prints "A LocalScreen object"
System.out.println(LocalScreen.this.toString());
// Won't compile! 'this' is a R...
jQuery pitfalls to avoid [closed]
...
+1 for the youtube link. holy crap i learned a lot.
– Jason
Aug 4 '09 at 20:39
23
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Does Java have a path joining method? [duplicate]
...id main(final String[] argv)
throws Exception
{
System.out.println(pathJoin());
System.out.println(pathJoin(""));
System.out.println(pathJoin("a"));
System.out.println(pathJoin("a", "b"));
System.out.println(pathJoin("a", "b", "c"));
System...
Is it OK to use == on enums in Java?
...s in switch statements? Didn't know that was possible. I'll have to try it out one day.
– luiscubal
Feb 10 '09 at 21:00
...
How should I detect unnecessary #include files in a large C++ project?
... (right click on a .cpp file, Properties->C/C++->Advanced) that will output a tree of all included files at compile time. This can help in identifying files that shouldn't need to be included.
You can also take a look at the pimpl idiom to let you get away with fewer header file dependencies...
PHP code to convert a MySQL query to CSV [closed]
...
SELECT * INTO OUTFILE "c:/mydata.csv"
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY "\n"
FROM my_table;
(the documentation for this is here: http://dev.mysql.com/doc/refman/5.0/en/select.html)
or:
$select = "S...
What is the reason why “synchronized” is not allowed in Java 8 interface methods?
...uld want to support the synchronized modifier on default methods, it turns out that doing so would be dangerous, and so was prohibited.
Synchronized methods are a shorthand for a method which behaves as if the entire body is enclosed in a synchronized block whose lock object is the receiver. It ...
Use of “instanceof” in Java [duplicate]
...id doSomething(Number param) {
if( param instanceof Double) {
System.out.println("param is a Double");
}
else if( param instanceof Integer) {
System.out.println("param is an Integer");
}
if( param instanceof Comparable) {
//subclasses of Number like Double etc. implement Compa...
Reverse a string in Java
...StringBuilder — they have the same API. Thanks commentators for pointing out that StringBuilder is preferred nowadays when there is no concurrency concern.
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Circular (or cyclic) imports in Python
...at are available when the import statement is executed. So it won't error out but you may not get all the variables you expect.
– augurar
Dec 24 '16 at 1:41
3
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