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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. import java.util.regex.Matcher;
  5. import java.util.regex.Pattern;
  6.  
  7. class Main
  8. {
  9. 	public static void main (String[] args) throws java.lang.Exception
  10. 	{
  11. 		Pattern pattern = Pattern.compile("(?<!(.)(?=\\1))([^raol1c])\\2(?!\\2)");
  12.         System.out.println("hhh:");
  13.         Matcher matcher = pattern.matcher("hhh");
  14.         while (matcher.find()) {
  15.           System.out.print("Start index: " + matcher.start());
  16.           System.out.print(" End index: " + matcher.end() + " ");
  17.           System.out.println(matcher.group());
  18.         }
  19.         System.out.println("hh:");
  20.         matcher = pattern.matcher("hh");
  21.         while (matcher.find()) {
  22.           System.out.print("Start index: " + matcher.start());
  23.           System.out.print(" End index: " + matcher.end() + " ");
  24.           System.out.println(matcher.group());
  25.         }
  26.         System.out.println("ahh:");
  27.         matcher = pattern.matcher("ahh");
  28.         while (matcher.find()) {
  29.           System.out.print("Start index: " + matcher.start());
  30.           System.out.print(" End index: " + matcher.end() + " ");
  31.           System.out.println(matcher.group());
  32.         }
  33.         System.out.println("hha:");
  34.         matcher = pattern.matcher("hha");
  35.         while (matcher.find()) {
  36.           System.out.print("Start index: " + matcher.start());
  37.           System.out.print(" End index: " + matcher.end() + " ");
  38.           System.out.println(matcher.group());
  39.         }
  40.         System.out.println("ahhahhhahha:");
  41.         matcher = pattern.matcher("ahhahhhahha");
  42.         while (matcher.find()) {
  43.           System.out.print("Start index: " + matcher.start());
  44.           System.out.print(" End index: " + matcher.end() + " ");
  45.           System.out.println(matcher.group());
  46.         }
  47. 	}
  48. }
Success #stdin #stdout 0.07s 380224KB
comments (?)
stdin
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Standard input is empty
stdout
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hhh:
hh:
Start index: 0 End index: 2 hh
ahh:
Start index: 1 End index: 3 hh
hha:
Start index: 0 End index: 2 hh
ahhahhhahha:
Start index: 1 End index: 3 hh
Start index: 8 End index: 10 hh
https://ideone.com/17J8nL
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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