fork(4) download
copy 
  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.util.regex.*;
  5. import java.lang.*;
  6. import java.io.*;
  7.  
  8. /* Name of the class has to be "Main" only if the class is public. */
  9. class Ideone
  10. {
  11. 	public static void main (String[] args) throws java.lang.Exception
  12. 	{
  13. 		Pattern p;
  14. 		try {
  15. 			p = Pattern.compile("\\[(?<text>[^\\]]*)\\]\\((?<link>[^\\)]*)\\)");
  16. 		} catch (PatternSyntaxException ex) {
  17. 			System.out.println(ex);
  18. 			throw(ex);
  19. 		}
  20. 		Matcher m1 = p.matcher("Hello");
  21. 		Matcher m2 = p.matcher("Hello [world](ladies)");
  22. 		Matcher m3 = p.matcher("Well, [this](that) has [two](too many) keys.");
  23. 		System.out.println("m1 matches: " + m1.matches());
  24. 		System.out.println("m2 matches: " + m2.matches());
  25. 		System.out.println("m3 matches: " + m3.matches());
  26. 		m2.start();
  27. 		m3.start();
  28. 		System.out.println("m2 text: " + m2.group("text"));
  29. 		System.out.println("m2 link: " + m2.group("link"));
  30. 		System.out.println("m3 text: " + m3.group("text"));
  31. 		System.out.println("m3 link: " + m3.group("link"));
  32. 		System.out.println("m3 count: " + m3.groupCount());
  33. 		System.out.println("m3 find: " + m3.find());
  34. 	}
  35. }
Runtime error #stdin #stdout #stderr 0.07s 380224KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
m1 matches: false
m2 matches: false
m3 matches: false
stderr
copy 
Exception in thread "main" java.lang.IllegalStateException: No match available
	at java.util.regex.Matcher.start(Matcher.java:342)
	at Ideone.main(Main.java:26)
https://ideone.com/BtySKB
language:
Java (12.0.1)
created:
10 years ago
visibility:
public

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!