进一法的实现double-int

//进一法的实现double-int

public class CutDot {

 /**

  * @param args

  */

 public static void main(String[] args) {

  // TODO Auto-generated method stub

  int a = 10, b = 3;

  double c = (double) a / b;

  System.out.println(c);// 3.3333333333333335

  // 进一法的实现

  int d = (int) Math.ceil(c);

  System.out.println(d);// 4

  // test

  System.out.println(Math.ceil(0.0000001));// 1.0

 }

}