joyfeng
BAN USER
- 0
5of 5 votes
AnswersAsked me to write an API. Then ask:
- joyfeng in United States
Consider how the API could support 3rd party applications which need to perform some logic based on the structure and content of a filter in a type-safe manner.| Report Duplicate | Flag | PURGE
unknown Software Engineer / Developer Java - 1
0of 0 votes
AnswerIt is part of a programming exercise.
- joyfeng in United States
Input is a combination of arbitrary complex filters. For example:
name = "smith" AND age > 9 OR Not(city = "New York")
It asks for a string representation, including the ability to generate and parse filters from the string representation. (you are not required to implement the string parsing logic since this could take too long)
Hint: give an example of a tree data structure.| Report Duplicate | Flag | PURGE
unknown Software Engineer / Developer Java
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- joyfeng March 03, 2017static List<String> comments(String s) { List<String> output = new ArrayList<>(); if (s == null) { return output; } int i = 0; StringBuilder sb = new StringBuilder(); boolean inSingleComment = false; boolean inMultiComment = false; boolean isInQuote = false; while (i < s.length()) { if (s.charAt(i) == '\"') { isInQuote = !isInQuote; } // if it is in quote and not in comment, ignore if (isInQuote && !inMultiComment && !inSingleComment) { i++; continue; } if (s.charAt(i) == '/' && i+1 < s.length() && s.charAt(i+1) == '*' && !inSingleComment) { inMultiComment = true; i++; } else if (s.charAt(i) == '/' && i+1 < s.length() && s.charAt(i+1) == '/' && !inMultiComment) { inSingleComment = true; i++; } else if (i+1 < s.length() && s.charAt(i) == '\\' && s.charAt(i+1) == 'n') { if (inSingleComment) { if (sb.length() > 0) { output.add(sb.toString()); } sb = new StringBuilder(); inSingleComment = false; } if (inMultiComment) { sb.append(s.charAt(i)); sb.append(s.charAt(i+1)); } i++; isInQuote = false; } else if (i+1 < s.length() && s.charAt(i) == '*' && s.charAt(i+1) == '/') { if (inMultiComment) { if (sb.length() > 0) { output.add(sb.toString()); } sb = new StringBuilder(); inMultiComment = false; } i++; } else if (inSingleComment || inMultiComment) { sb.append(s.charAt(i)); } i++; } if (sb.length() > 0) { output.add(sb.toString()); } return output; }