fork download
copy 
  1. import java.util.*;
  2. import java.util.regex.*;
  3. import java.lang.*;
  4.  
  5. class Main {
  6. 	public static String replaceRandom(String input) {
  7. 	    Pattern p = Pattern.compile("(?<=\\[)Random\\((\\d+),(\\d+)\\)(?=\\])");
  8. 	    Matcher m = p.matcher(input);
  9. 	    String output = input;
  10. 	    if (m.find()) {
  11. 	        int min = Integer.valueOf(m.group(1));
  12. 	        int max = Integer.valueOf(m.group(2));
  13. 	        int rand = min + (int)(Math.random() * ((max - min) + 1));
  14. 	        output = output.substring(0, m.start()) +rand+ output.substring(m.end());
  15. 	    }
  16. 	    return output;
  17. 	}
  18.  
  19. 	public static void main(String[] args) {
  20. 	    System.out.println("(1,9): " + replaceRandom("$.store.book[Random(1,9)].title"));
  21. 	    System.out.println("(1,999): " + replaceRandom("$.store.book[Random(1,999)].title"));
  22. 	    System.out.println("(50,200): " + replaceRandom("$.store.book[Random(50,200)].title"));
  23. 	    System.out.println();
  24. 	    System.out.println("(1,9): " + replaceRandom("$.store.book[Random(1,9)].title"));
  25. 	    System.out.println("(1,999): " + replaceRandom("$.store.book[Random(1,999)].title"));
  26. 	    System.out.println("(50,200): " + replaceRandom("$.store.book[Random(50,200)].title"));
  27. 	    System.out.println();
  28. 	    System.out.println("(1,9): " + replaceRandom("$.store.book[Random(1,9)].title"));
  29. 	    System.out.println("(1,999): " + replaceRandom("$.store.book[Random(1,999)].title"));
  30. 	    System.out.println("(50,200): " + replaceRandom("$.store.book[Random(50,200)].title"));
  31. 	    System.out.println();
  32. 	    System.out.println("(1,9): " + replaceRandom("$.store.book[Random(1,9)].title"));
  33. 	    System.out.println("(1,999): " + replaceRandom("$.store.book[Random(1,999)].title"));
  34. 	    System.out.println("(50,200): " + replaceRandom("$.store.book[Random(50,200)].title"));
  35. 	}
  36. }
Success #stdin #stdout 0.07s 381248KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
(1,9): $.store.book[9].title
(1,999): $.store.book[753].title
(50,200): $.store.book[88].title

(1,9): $.store.book[7].title
(1,999): $.store.book[233].title
(50,200): $.store.book[88].title

(1,9): $.store.book[4].title
(1,999): $.store.book[442].title
(50,200): $.store.book[172].title

(1,9): $.store.book[8].title
(1,999): $.store.book[745].title
(50,200): $.store.book[134].title
https://ideone.com/5pxaxE
language:
Java (12.0.1)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!