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  1. import java.util.regex.Pattern;
  2.  
  3. class Test {
  4.  
  5. 	public static void main (String[] args) throws java.lang.Exception {
  6.  
  7. 		Pattern p = Pattern.compile("(?=^([0-9] *){9,12}[0-9]$)(?=^([0-9]+ ){0,3}[0-9]+$)^.*$");
  8. 		System.out.println(p.matcher("1234567 90").matches());        // false
  9. 		System.out.println(p.matcher("123 456 789 0123").matches());  // true
  10. 		System.out.println(p.matcher("123 456 789 01 23").matches()); // false
  11.  
  12. 	}
  13.  
  14. }
Success #stdin #stdout 0.07s 380224KB
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stdin
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Standard input is empty
stdout
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false
true
false
https://ideone.com/sDTfWP
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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