Java ceil() method with Examples

The java.lang.Math.ceil() returns the double value that is greater than or equal to the argument and is equal to the nearest mathematical integer.
Note:

  • If the argument is Integer, then the result is Integer.
  • 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.

Syntax :

public static double ceil(double a)
a : the argument whose ceil value is to be determined
Returns : This method returns the double value that is greater than or equal
to the argument and is equal to the nearest mathematical integer.



Example :To show working of java.lang.Math.ceil() method.

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java program to demonstrate working
// of java.lang.Math.ceil() method
import java.lang.Math;
  
class Gfg {
  
    // driver code
    public static void main(String args[])
    {
        double a = 4.3;
        double b = 1.0 / 0;
        double c = 0.0;
        double d = -0.0;
        double e = -0.12;
  
        System.out.println(Math.ceil(a));
  
        // Input Infinity, Output Infinity
        System.out.println(Math.ceil(b));
  
        // Input Positive Zero, Output Positive Zero
        System.out.println(Math.ceil(c));
  
        // Input Negative Zero, Output Negative Zero
        System.out.println(Math.ceil(d));
  
        // Input  less than zero but greater than -1.0
        // Output Negative zero
        System.out.println(Math.ceil(e));
    }
}

chevron_right


Output:

5.0
Infinity
0.0
-0.0
-0.0


My Personal Notes arrow_drop_up

Welcome to Wenzkaba Planet

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.