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  1. import java.util.*;
  2. import java.util.regex.*;
  3. import java.lang.*;
  4. import java.io.*;
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		String[] arrayOfLine = {"2017 ." , "." , "$30","AVAILABLE.”"};
  10. 		Pattern pat = Pattern.compile("^[A-Z]+\\.[0-9]+\\b");
  11. 		List<String> listOfHeadings = new ArrayList<>();
  12.     	for (String s : arrayOfLine) {
  13.     		Matcher m = pat.matcher(s);
  14.     		if (m.find()) {
  15.            		listOfHeadings.add(s);
  16.     		}
  17. 		}
  18. 		System.out.println(listOfHeadings);
  19.  
  20. 	}
  21. }
Success #stdin #stdout 0.04s 4386816KB
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stdin 
Standard input is empty
stdout 
[]
https://ideone.com/u3mwj3
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
secret

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