java基础练习题

package com.hanqi;
import java.util.*;
public class zuoyeduizhezhi {
    public static void main(String[] args)
    {//纸张对折超过山峰高度
        double a=0.08;
        double b=884813*10;
       for(int zds=1;zds<=99;zds++)
        {
           a=a*2;
            if(a>b)
            {
                System.out.println(zds);
                break;
            }
        }
       //阶层每阶1
        a=1;
        b=1;
        double c=0;
       while(a<=20)
       {
           b=a*b;
           a++;
           c=c+1/b;
           
          
           
       }System.out.println(c);
    }

}