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  1. import java.util.*;
  2. import java.util.regex.*;
  3.  
  4. class Main {
  5.   public static void main(String args[]) {
  6.     String sample = "カタカナ";
  7.  
  8.     System.out.println(sample.matches("[\\p{InKatakana}]+"));
  9. System.out.println(sample.matches("\\p{InKatakana}+"));
  10.  
  11. try {
  12. System.out.println(sample.matches("\\p{Katakana}+"));
  13. } catch (Exception e) {
  14. }
  15.   }
  16. }
Success #stdin #stdout 0.04s 246784KB
comments (?)
stdin 
Standard input is empty
stdout 
true
true
https://ideone.com/p3P9b
language:
Java (HotSpot 12)
created:
13 years ago
visibility:
public

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