AppFolio, Inc.(NASDAQ:APPF)成立于2006年，总部位于美国加州圣巴巴拉，创始人为加州大学前计算机科学教授克劳斯·绍瑟尔(Klasu Schauser)和琼·沃克尔(Jon Walker)，是一家物业管理软件开发公司。
AppFolio creates complete, easy-to-use, cloud-based software for multiple vertical markets.
AppFolio Property Manager
General questions
- How to know AppFilo? Why AppFilo?
- introduce your projects and tech stacks
- Node.js, which kind of framework you used ?
Tech questions
Tell me about the data schema and programming in PostgreSQL
What you did in MongoDB?
How to use the ElasticSearch in your project?
Coding questions
- Reverse the words in the string, without java.util method - split
for example:
Today is Monday March 21st=> 21st March Monday is Today
3/22/16 update
这个是更精炼的解法
import java.util.*;
public class ReverseString{
public static String reverseWordsInString(String s) {
StringBuilder res = new StringBuilder();
int j = s.length();
for (int i = s.length() - 1; i >= 0; i--) {
if (s.charAt(i) == ' ') {
j = i;
} else if (i == 0 || s.charAt(i-1) == ' ') {
if (res.length() != 0) {
res.append(' ');
}
res.append(s.substring(i,j));
}
}
return res.toString();
}
}
旧的解法，留个纪念
import java.util.*;
public class ReverseString{
public static void main(String[] args) {
String str = "Today is Monday March 21st";
System.out.println(str);
System.out.print("=> " + reverseStr(str));
}
public static String reverseStr(String str) {
// split string to multiple words
LinkedList<String> list = new LinkedList<>();
// check the whitespace , split string by whitespace
int n = str.length();
int left = 0, right = 0;
int index = 0;
for (int i=0; i < n; i++){
right++;
if(str.charAt(i) == ' ') {
String temp = str.substring(left, right);
list.add(index, temp);
left = right;
index++;
}
}
// add the last word int the string
list.add(index, str.substring(left, right));
StringBuilder sb = new StringBuilder();
for (int j=list.size() -1; j >= 0; j--) {
sb.append(list.get(j) + " " );
}
return sb.toString();
}
}
- Update the code using OOP concept
class Meeting
end
class Interview
end
class DesignReview
end
class Scheduler
def schedulable?(target, start_date, end_date)
if target.is_a?(Meeting)
return end_date - (start_date - 5.days) > 10.days
elsif target.is_a?(Interview)
return start_date > (end_date - 2.days)
elsif target.is_a?(DesignReview)
return (end_date + 10.days) - start_date > 15.days
end
end
end
targets = [ Meeting.new, Interview.new, DesignReview.new ]
scheduler = Scheduler.new
targets.each do |target|
if scheduler.schedulable?(target, Clock.today, Clock.today + 10)
puts "The #{target.class.name} can be scheduled"
end
end
＃＃尾声
让面试官给推荐了一本书，
Agile Web Development with Rails 4 (Facets of Ruby) 1st Edition
