本文为大家分享了Character.UnicodeBlock中cjk的说明,供大家参考,具体内容如下
Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS : 4E00-9FBF:CJK 统一表意符号
Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS :F900-FAFF:CJK 兼容象形文字 Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A :3400-4DBF:CJK 统一表意符号扩展 A
CJK的意思是“Chinese,Japanese,Korea”的简写 ,实际上就是指中日韩三国的象形文字的Unicode编码
Character.UnicodeBlock.GENERAL_PUNCTUATION :2000-206F:常用标点 Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION :3000-303F:CJK 符号和标点 Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS :FF00-FFEF:半角及全角形式
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/**
* 校验一个字符是否是汉字
*
* @param c
* 被校验的字符
* @return true代表是汉字
*/
public static boolean isChineseChar( char c) {
try {
return String.valueOf(c).getBytes( "UTF-8" ).length > 1 ;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return false ;
}
}
/**
* 验证字符串内容是否包含下列非法字符<br>
* `~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆
*
* @param content
* 字符串内容
* @return 't'代表不包含非法字符,otherwise代表包含非法字符。
*/
public static char validateLegalString(String content) {
String illegal = "`~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆" ;
char isLegalChar = 't' ;
L1: for ( int i = 0 ; i < content.length(); i++) {
for ( int j = 0 ; j < illegal.length(); j++) {
if (content.charAt(i) == illegal.charAt(j)) {
isLegalChar = content.charAt(i);
break L1;
}
}
}
return isLegalChar;
}
/**
* 验证是否是汉字或者0-9、a-z、A-Z
*
* @param c
* 被验证的char
* @return true代表符合条件
*/
public static boolean isRightChar( char c) {
return isChinese(c) || isWord(c);
}
/**
* 校验某个字符是否是a-z、A-Z、_、0-9
*
* @param c
* 被校验的字符
* @return true代表符合条件
*/
public static boolean isWord( char c) {
String regEx = "[\\w]" ;
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher( "" + c);
return m.matches();
}
/**
* 判定输入的是否是汉字
*
* @param c
* 被校验的字符
* @return true代表是汉字
*/
public static boolean isChinese( char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION
|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION
|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
return true ;
}
return false ;
}
/**
* 校验String是否全是中文
*
* @param name
* 被校验的字符串
* @return true代表全是汉字
*/
public static boolean checkNameChese(String name) {
boolean res = true ;
char [] cTemp = name.toCharArray();
for ( int i = 0 ; i < name.length(); i++) {
if (!isChinese(cTemp[i])) {
res = false ;
break ;
}
}
return res;
}
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://www.cnblogs.com/wangziqiang/p/3810440.html