Java.lang.Math.ceil() is a method that is used to calculate the nearest integer greater than (or equal to if the passed value is itself an integer) the passed value.

**Java.lang.Math.ceil()** is an inbuilt method that is used to calculate the nearest integer greater than (or equal to if the passed value is itself an integer) the passed value. Ceil values are often required in various algorithm-building scenarios dealing with mathematical operations and can be directly seen in various mathematical formulae as well.

**Java.lang.Math.ceil(double a)** 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.

- 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.

`public static double ceil(double x)`

What is OpenJDK? OpenJDk or Open Java Development Kit is a free, open-source framework of the Java Platform, Standard Edition (or Java SE).

Math class in Java Example. Using the Math class, we can implement methods like min(), max(), avg(), sin(), cos(), tan(), round(), ceil(), floor(), abs(), pow(), floor(), ciel(), round()

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