[JAVA] Arrotondare valori float

[NightlyBlue]

Che metodo devo usare per arrontondare dei numeri float in numeri interi del tipo:

5.000001 => 5
4,999999 => 5

?

[Xadoom]

Mi pare devi usare uno di questi due:

 
ceil

public static double ceil(double a)

    Returns the smallest (closest to negative infinity) double value that is not less than the argument and is equal to a mathematical integer. Special cases:

        * If the argument value is already equal to a mathematical integer, then the result is the same as the argument.
        * If the argument is NaN or an infinity or positive zero or negative zero, then the result is the same as the argument.
        * If the argument value is less than zero but greater than -1.0, then the result is negative zero.

    Note that the value of Math.ceil(x) is exactly the value of -Math.floor(-x).

    Parameters:
        a - a value. 
    Returns:
        the smallest (closest to negative infinity) floating-point value that is not less than the argument and is equal to a mathematical integer.
--------------------------------------------------------
floor

public static double floor(double a)

    Returns the largest (closest to positive infinity) double value that is not greater than the argument and is equal to a mathematical integer. Special cases:

        * If the argument value is already equal to a mathematical integer, then the result is the same as the argument.
        * If the argument is NaN or an infinity or positive zero or negative zero, then the result is the same as the argument.

    Parameters:
        a - a value. 
    Returns:
        the largest (closest to positive infinity) floating-point value that is not greater than the argument and is equal to a mathematical integer.

[nrocco]

Prova Math.rint()!

[Ed_Bunker]

Aggiungi 0.5 e casti ad int