mathtest.java

《Java面向对象程序设计》例子源代码.轻松学习书本.

public class MathTest{
	public static void main(String args[]){
		System.out.println (Math.abs (-5.8)); 			//5.8
		System.out.println (Math.ceil (3.2)); 			//4
		System.out.println (Math.floor (3.8)); 			//3
		System.out.println (Math.round (3.8)); 			//4
		System.out.println (Math.round (3.2)); 			//3
		System.out.println (Math.min (3,2)); 			//2
		System.out.println (Math.max (Math.PI,4)); 	//4
		System.out.println (Math.log (7.0)); 			//1.94591
		System.out.println (Math.pow (7,2)); 			//72 ---- 49
		System.out.println (Math.exp (0.4)); 			//1.49183
		System.out.println (Math.IEEEremainder(10.0,3.0)); 		//返回1
		double angle = 0.785398; 							//以弧度为单位的角，π/4
		System.out.println (Math.tan (angle)); 			//返回该角的正切
		System.out.println (Math.asin(0.707107)); 		//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（不含1）之间的伪随机数		
	}
}