about public static long round(double a)

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about public static long round(double a)

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December 12th, 2006, 12:17 AM

rmn190

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about public static long round(double a)

it says:Returns the closest long to the argument. The result is rounded to an integer by adding 1/2, taking the floor of the result, and casting the result to type long.but i dont know the use of 1/2,so could help me explain that.
thank you in advance.

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