Several ways to determine whether Char is Chinese in Java

1, Method one

Java code

1. char c = ' a ';
2. if ((c >= 0x4e00) && (c <= 0x9fbb)) {
3. System.out.println ("is Chinese");
4. }

The above method is simple, but can only judge whether it is Chinese, but can not determine whether it is Chinese punctuation.

The following method is comprehensive, the Chinese character punctuation can be judged

2. Method Two

Java code

2. Private Static final boolean Ischinese (char c) {
4. Character.unicodeblock UB = Character.UnicodeBlock.of (c);
6. if (UB = = Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
8. || UB = = Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
10. || UB = = Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
12. || UB = = Character.UnicodeBlock.GENERAL_PUNCTUATION
14. || UB = = Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
16. || UB = = Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
18. return true;
20. }
22. return false;
24. }

Reviews 1 Floor jetmah 2012-06-20 block = = cjk_unified_ideographs//CJK Unified Ideographs
|| Block = = cjk_compatibility_ideographs//CJK Compatible characters
|| Block = = cjk_unified_ideographs_extension_a//CJK Unified Ideographs Extension A
|| Block = = general_punctuation//General punctuation, judging Chinese "No.
|| Block = = cjk_symbols_and_punctuation//symbols and punctuation, judging the Chinese. No.
|| Block = = halfwidth_and_fullwidth_forms//half-width and full-width characters, judging the Chinese, number

Several ways to determine whether Char is Chinese in Java