mathexam.java

Java程序设计实验与实训源代码经典的JAVA学习教材

//字符界面下的第一个Application程序：MathExam.Java
public class MathExam
{
	public static void main(String args[])
	{
	   System.out.println (Math.abs (-15.8));     //15.8
        System.out.println (Math.ceil (5.2));      //6
        System.out.println (Math.floor (2.8));     //2
        System.out.println (Math.round (5.8));     //6
        System.out.println (Math.round (5.2));     //5
        System.out.println (Math.min (3,1));       //1
        System.out.println (Math.max (Math.PI,4));//4
        System.out.println (Math.log (10.0));      //2.302585
        System.out.println (Math.pow (3,2));       //9
        System.out.println (Math.exp (0.4));       //1.49183
        System.out.println (Math.IEEEremainder(10.0,3.0));//返回1
        double angle = 0.221688;                  //以弧度为单位的角
        System.out.println (Math.tan (angle));  //返回该角的正切
        System.out.println (Math.asin(0.207006));//返回反余弦
        System.out.println ("e is:"+ Math.E);     // e is：2.71828
        System.out.println ("πis:"+Math.PI);      //πis：3.14159
        System.out.println(Math.random());//产生0和1之间的伪随机数    
}
}