Java Math(數學幫助類)

/**
   *  public final class Math {}
   **/ 
   double pow = Math.pow(10, 3);//10的3次方
   double max = Math.max(12.0, 13.0);//最大值
   double min = Math.min(12d, 13d);//最小值
   double sqrt = Math.sqrt(2);//計算平方根
   double cbrt = Math.cbrt(8);//計算立方根
   double abs = Math.abs(-1.444);//絕對值
   double ceil = Math.ceil(-1.01);//向上取整
   double floor = Math.floor(-1.01);//向下取整
   double random = Math.random();//random>0&&random<1
   long round = Math.round(14.5);//四捨五入
   System.out.println(pow);
   System.out.println(max);
   System.out.println(min);
   System.out.println(sqrt);
   System.out.println(cbrt);
   System.out.println(abs);
   System.out.println(ceil);
   System.out.println(floor);
   System.out.println(random);
   System.out.println(round);