Java Ceil ceil(double a)

Description

Returns the smallest (closest to negative infinity) double value that is greater than or equal to the argument and is equal to a mathematical integer.

License

Open Source License

Parameter

Parameter	Description
a	a value

Return

the smallest (closest to negative infinity) floating-point value that is greater than or equal to the argument and is equal to a mathematical integer

Declaration

public static double ceil(double a)

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**/*from w w  w  .java  2s . c  om*/
     * Returns the smallest (closest to negative infinity) {@code double} value
     * that is greater than or equal to the argument and is equal to a
     * mathematical integer. Special cases:
     * <ul><li>If the argument value is already equal to a mathematical integer,
     * then the result is the same as the argument. <li>If the argument is NaN
     * or an infinity or positive zero or negative zero, then the result is the
     * same as the argument. <li>If the argument value is less than zero but
     * greater than -1.0, then the result is negative zero.</ul> Note that the
     * value of {@code Math.ceil(x)} is exactly the value of
     * {@code -Math.floor(-x)}.
     *
     *
     * @param a a value
     * @return the smallest (closest to negative infinity) floating-point value
     * that is greater than or equal to the argument and is equal to a
     * mathematical integer
     */
    public static double ceil(double a) {
        return Math.ceil(a);
    }
}