Java Lang Math Round

The java lang math round is a built in math function which returns the closest long to the argument.

Java lang math round.

Special cases the following example shows the usage of lang math round method. Declaration the java lang math round method is declared as. Following is the declaration for java lang math class. Following are the fields for java lang math class.

In order to round float and double numbers in java we use the java lang math round method. This relaxation permits better performing implementations. If the argument is nan the result is 0. The java lang math class contains methods for performing basic numeric operations such as the elementary exponential logarithm square root and trigonometric functions.

This method is used to return the closest long to the argument with ties rounding to positive infinity. It returns the closest integer to number. The method accepts either double or float values and returns an integer value. This is computed by adding to the number and then flooring it.

The result is rounded to an integer by adding 1 2 taking the floor of the result after adding 1 2 and casting the result to type long. Java lang math public final class math extends object math クラスは 指数関数 対数関数 平方根 および三角関数といった基本的な数値処理を実行するためのメソッドを含んでいます. Java lang math public final class math extends object the class math contains methods for performing basic numeric operations such as the elementary exponential logarithm square root and trigonometric functions. Public final class math extends object field.

The java lang math round is used round of the decimal numbers to the nearest value. Unlike some of the numeric methods of class strictmath all implementations of the equivalent functions of class math are not defined to return the bit for bit same results. For example floordiv 4 3 1 and 4 3 1. If the signs of the arguments are the same the results of floordiv and the operator are the same.

The result is rounded to an integer by adding 1 2 taking the floor of the result and casting the result to type int. The java lang math round float a returns the closest int to the argument. The floor rounding mode gives different results than truncation when the exact result is negative.