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Is there a difference between x++ and ++x in java?

... public class Y extends java.lang.Object{ public Y(); Code: 0: aload_0 1: invokespecial #1; //Method java/lang/Object."<init>":()V 4: return public static void main(java.lang.String[]); Code: 0: iconst_2 // Push int constant `2` onto the operand stack. 1: istor...
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How do I change the color of the text in a UIPickerView under iOS 7?

...spaced 35 pts apart for a picker height of 180. Swift 3: func pickerView(_ pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? { let string = "myString" return NSAttributedString(string: string, attributes: [NSForegroundColorAtt...
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Trying to understand CMTime and CMTimeMake

...llowing code makes the concept more clear: 1) Float64 seconds = 5; int32_t preferredTimeScale = 600; CMTime inTime = CMTimeMakeWithSeconds(seconds, preferredTimeScale); CMTimeShow(inTime); The above code gives: {3000/600 = 5.000} Which means a total duration of 5 seconds, with 3000 frames with...
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Efficient way to determine number of digits in an integer

...For added efficiency, if you know that your input numbers will be mostly small ones (I'm guessing less than 100,000), then reverse the tests: if (x < 10) return 1; if (x < 100) return 2; etc., so that the function will do less tests and exit faster. – squelart ...
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What's the difference between HEAD^ and HEAD~ in Git?

...f thumb Use ~ most of the time — to go back a number of generations, usually what you want Use ^ on merge commits — because they have two or more (immediate) parents Mnemonics: Tilde ~ is almost linear in appearance and wants to go backward in a straight line Caret ^ suggests an interesting s...
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Is there an exponent operator in C#?

...o in most programs, and it doesn't seem justified to add an operator when calling Math.Pow() is simple. You asked: Do I have to write a loop or include another namespace to handle exponential operations? If so, how do I handle exponential operations using non-integers? Math.Pow supports double p...
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How does Google's Page Speed lossless image compression work?

... image can be losslessly compressed, and provide a link to download this smaller image. 9 Answers ...
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Reducing the space between sections of the UITableView

... viewForHeaderInSection:(NSInteger)section { return [[UIView alloc] initWithFrame:CGRectZero]; } - (UIView*)tableView:(UITableView*)tableView viewForFooterInSection:(NSInteger)section { return [[UIView alloc] initWithFrame:CGRectZero]; } Change the values accordingly...
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How to perform mouseover function in Selenium WebDriver using Java?

... Its not really possible to perform a 'mouse hover' action, instead you need to chain all of the actions that you want to achieve in one go. So move to the element that reveals the others, then during the same chain, move to the now rev...
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Convert string with commas to array

... Convert all type of strings var array = (new Function("return [" + str+ "];")()); var string = "0,1"; var objectstring = '{Name:"Tshirt", CatGroupName:"Clothes", Gender:"male-female"}, {Name:"Dress", CatGroupName:"Clothes", Gend...