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How to check if my string is equal to null?
...ontract:
From Object.equals(Object):
For any non-null reference value m>x m>, m>x m>.equals(null) should return false.
The way to compare with null is to use m>x m> == null and m>x m> != null.
Moreover, m>x m>.field and m>x m>.method() throws NullPointerEm>x m>ception if m>x m> == null.
...
C/C++ check if one bit is set in, i.e. int variable
... @Eduard: in C, everything != 0 is true, so why bother? 1 is em>x m>actly as true as 0.1415!
– Christoph
Feb 7 '09 at 13:39
1
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CGContem>x m>tDrawImage draws image upside down when passed UIImage.CGImage
Does anyone know why CGContem>x m>tDrawImage would be drawing my image upside down? I am loading an image in from my application:
...
Displaying a message in iOS which has the same functionality as Toast in Android
...ou can make use of MBProgressHUD project.
Use HUD mode MBProgressHUDModeTem>x m>t for toast-like behaviour,
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES];
// Configure for tem>x m>t only and offset down
hud.mode = MBProgressHUDModeTem>x m>t;
hud.label.tem>x m>t = @"S...
Cast Int to enum in Java
...
Try MyEnum.values()[m>x m>] where m>x m> must be 0 or 1, i.e. a valid ordinal for that enum.
Note that in Java enums actually are classes (and enum values thus are objects) and thus you can't cast an int or even Integer to an enum.
...
iOS 7 parallam>x m> effect in my view controller
...in my app with a few buttons and a pretty background image. (It's a simple m>x m>ib with UIButtons on top of a UIImageView .)
...
Use of “global” keyword in Python
...global is only useful to change or create global variables in a local contem>x m>t, although creating global variables is seldom considered a good solution.
def bob():
me = "locally defined" # Defined only in local contem>x m>t
print(me)
bob()
print(me) # Asking for a global variable
The ab...
android: move a view on touch move (ACTION_MOVE)
...
Something like this:
public class MyActivity em>x m>tends Activity implements View.OnTouchListener {
Tem>x m>tView _view;
ViewGroup _root;
private int _m>x m>Delta;
private int _yDelta;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState)...
Windows batch: formatted date into variable
...can get the current date in a locale-agnostic way using
for /f "skip=1" %%m>x m> in ('wmic os get localdatetime') do if not defined MyDate set MyDate=%%m>x m>
Then you can em>x m>tract the individual parts using substrings:
set today=%MyDate:~0,4%-%MyDate:~4,2%-%MyDate:~6,2%
Another way, where you get variab...
Writing string to a file on a new line every time
...
You can do this in two ways:
f.write("tem>x m>t to write\n")
or, depending on your Python version (2 or 3):
print >>f, "tem>x m>t to write" # Python 2.m>x m>
print("tem>x m>t to write", file=f) # Python 3.m>x m>
...