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How does the Java 'for each' loop work?
...e.iterator(); i.hasNext();) {
String item = i.next();
System.out.println(item);
}
Note that if you need to use i.remove(); in your loop, or access the actual iterator in some way, you cannot use the for ( : ) idiom, since the actual iterator is merely inferred.
As was noted by Denis Bueno...
Two-dimensional array in Swift
...
Define mutable array
// 2 dimensional array of arrays of Ints
var arr = [[Int]]()
OR:
// 2 dimensional array of arrays of Ints
var arr: [[Int]] = []
OR if you need an array of predefined size (as mentioned by @0x7fffffff in comments):
// 2 dimensional array of arrays of I...
What are the differences between utf8_general_ci and utf8_unicode_ci? [duplicate]
... that gives incorrect results on general Unicode text. What it does is:
converts to Unicode normalization form D for canonical decomposition
removes any combining characters
converts to upper case
This does not work correctly on Unicode, because it does not understand Unicode casing. Unicod...
Can an Android Toast be longer than Toast.LENGTH_LONG?
..._DELAY);
}
and default values for duration are
private static final int LONG_DELAY = 3500; // 3.5 seconds
private static final int SHORT_DELAY = 2000; // 2 seconds
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TimePicker Dialog from clicking EditText
...ub
Calendar mcurrentTime = Calendar.getInstance();
int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
int minute = mcurrentTime.get(Calendar.MINUTE);
TimePickerDialog mTimePicker;
mTimePicker = new TimePickerDialog(AddReminder.this, new Tim...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
...ype float are passed as variadic parameters, such arguments are implicitly converted to type double. This is the reason why in printf format specifiers %f and %lf are equivalent and interchangeable. In printf you can "cross-use" %lf with float or %f with double.
But there's no reason to actually do...
Typedef function pointer?
...e it the same way you would use the original type, for instance
typedef int myinteger;
typedef char *mystring;
typedef void (*myfunc)();
using them like
myinteger i; // is equivalent to int i;
mystring s; // is the same as char *s;
myfunc f; // compile equally as v...
Call by name vs call by value in Scala, clarification needed
...irst, let's assume we have a function with a side-effect. This function prints something out and then returns an Int.
def something() = {
println("calling something")
1 // return value
}
Now we are going to define two function that accept Int arguments that are exactly the same except that o...
Default value of function parameter
...e, you will be able to see the difference.
Specifically, suppose:
lib.h
int Add(int a, int b);
lib.cpp
int Add(int a, int b = 3) {
...
}
test.cpp
#include "lib.h"
int main() {
Add(4);
}
The compilation of test.cpp will not see the default parameter declaration, and will fail with ...
How to use ADB to send touch events to device using sendevent command?
...
If you don't want to have to convert the hex to decimal, you can let your shell do it: adb shell input tap $((16#2f5)) $((16#69e)). Also, just to be pedantic, 0x2F5 and 0x69E are 757 and 1694 respectively... What did you use to convert between bases?
...