Java Math ceil() Method

tutorial and example
tutorial and example

The ceil() method of Math class returns the smallest double value which is closest to negative infinity and is greater than or equal to the argument.

Syntax:

public static double ceil(double a)

Parameters:

The parameter ‘a’ represents a value.

Return Value:

The ceil() method returns the smallest floating-point value greater than or equal to argument and is equal to a mathematical integer.

  • It returns same value as the argument, if the argument value is equal to a mathematical integer.
  • It returns the same value as the argument, if we pass a NaN or infinity or positive zero or negative zero argument.
  • It will return negative zero, if the argument value is less than zero but greater than -1.0.

Example 1:

 Output:

Example 2:

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Example 3:

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Example 4:

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