Java中判断字符串是中文或者英文的工具类分享

直接上代码：

import java.util.regex.matcher;
import java.util.regex.pattern;

/**
 *
 * <p>
 * classname showchineseinunicodeblock
 * </p>
 * <p>
 * description 提供判断字符串是中文或者是英文的一种思路
 * </p>
 *
 * @author wangxu [e-mail]
 *         <p>
 *         date 2014-9-16 下午06:45:35
 *         </p>
 * @version v1.0
 *
 */
public class showchineseinunicodeblock {
 public static void main(string[] args) {
  string str = "我爱你，！？（）：；“”、。";
  char[] chararray = str.tochararray();
  for (int i = 0; i < chararray.length; i++) {
   ischinese(chararray[i]);
  }
  string chinese = "中国god damn";
  system.out.println(iscontainchinese(chinese));
  string english = "dfafdabac";
  system.out.println(isenglish(english));
 }

 /**
  *
  * <p>
  * title: ischinese
  * </p>
  * <p>
  * description: 该函数就用来打印一些字符看看属于什么
  * </p>
  *
  * @param c
  *
  */
 public static void ischinese(char c) {
  character.unicodeblock ub = character.unicodeblock.of(c);
  if (ub == character.unicodeblock.cjk_unified_ideographs) {
   system.out.println(c + "--cjk_unified_ideographs");
  } else if (ub == character.unicodeblock.cjk_compatibility_ideographs) {
   system.out.println(c + "--cjk_compatibility_ideographs");
  } else if (ub == character.unicodeblock.cjk_unified_ideographs_extension_a) {
   // cjk unified ideographs extension wikipediaunicode扩展汉字
   // cjk unified ideographs extension a 中日韩统一表意文字扩展区a ; 表意文字扩充a
   // cjk unified ideographs extension b 中日韩统一表意文字扩展区b
   system.out.println(c + "--cjk_unified_ideographs_extension_a");
  } else if (ub == character.unicodeblock.general_punctuation) {// 通用标点
   system.out.println(c + "--general_punctuation");

  } else if (ub == character.unicodeblock.cjk_symbols_and_punctuation) {
   system.out.println(c + "--cjk_symbols_and_punctuation");

  } else if (ub == character.unicodeblock.halfwidth_and_fullwidth_forms) {
   system.out.println(c + "--halfwidth_and_fullwidth_forms");

  }
 }

 public static boolean isenglish(string charastring) {
  return charastring.matches("^[a-za-z]*");
 }

 public static boolean iscontainchinese(string str) {// 检测是否包含中文
  string regex = "[\\u4e00-\\u9fa5]+";
  pattern p = pattern.compile(regex);
  matcher m = p.matcher(str);
  if (m.find()) {
   return true;
  } else {
   return false;
  }
 }
}