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 wangx89@126.com

 *         <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;

  }

 }

}