Java's math class

An overview of the math class and its member methods

The math class contains methods for performing basic mathematical operations, such as elementary exponents, logarithms, square roots, and trigonometric functions.

Member variables:

public static final double PI

pubilc static final double E

Member Methods:

public static int abs (int a)//absolute value

public static double Ceil (double A): Rounding up

public static double floor (double a): Rounding down

public static int max (int a,int b): Maximum value

public static Double pow (double a,double b): Power of B of a

public static Double Random (): random number [0,1]

public static long round (float a): rounding

public static double sqrt (double A): positive square root

Package cn;/** * math: Classes  *  member variables for mathematical operations:  * public static final  double PI * pubilc static final double E *   member Methods:  *  public static int abs (Int a)//Absolute value  *  public static  double ceil (Double a): Rounding up  *      public static  Double floor (double a): Rounding down  *    public static int max (int  A,INT B): Maximum Value  *      public static double pow ( DOUBLE A,DOUBLE B): The second power of B of a  *      public static double  random (): random number [0,1]  *      public static long round ( Float a): Rounded  *      public static double sqrt (double  a): Seek positive square root  */PUBLIC CLAss mathdemo {public static void main (String[] args)  {//public static  final double pisystem.out.println (Math.PI);//3.141592653589793//pubilc static final  double esystem.out.println (MATH.E);//2.718281828459045//public static int abs (int  A)//Absolute System.out.println (Math.Abs ( -1));//1system.out.println (Math.Abs (1));//1//public static  Double ceil (Double a): Rounding Up System.out.println (Math.ceil (0.1));//1.0system.out.println (Math.ceil (12.34 );//13.0system.out.println (Math.ceil (12.78));//13.0//public static double floor (Double a) : Rounding Down System.out.println (Math.floor (12.34));//12.0system.out.println (Math.floor (12.78));//12.0//public  Static int max (int a,int b): Maximum Value System.out.println (Math.max (12, 13));//13//public  static double pow (DOUBLE A,DOUBLE B): The Power System.out.println of B of A (Math.pow (2, 3)); /8.0//public statiC round (float a): Rounded System.out.println (Math.Round (4.5));//5// public static double  sqrt (Double a): Seek positive square root System.out.println (MATH.SQRT (4));//2}}

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Java's math class