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   String s1 = "ÎÒÊÇÖйúÈË";
   String s2 = "imchinese";
   String s3 = "imÖйúÈË";
   System.out.println(s1+":"+new String(s1).length());
   System.out.println(s2+":"+new String(s2).length());
   System.out.println(s3+":"+new String(s3).length());
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   imchinese:9
   imÖйúÈË:5
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   char ch[] = str.toCharArray();
   for (int i = 0; i < ch.length; i++) {
     if (ch[i] > 255) {
       System.out.print(ch[i]);
    }
  }
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   String str = "ÖÐ";
   byte[] bt = str.getBytes("GBK");
   System.out.println(Integer.toHexString(bt[0]).substring(6)
     +Integer.toHexString(bt[1]).substring(6));
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   ˵Ã÷£ºjavaÄÚ²¿Ê¹ÓõÄÊÇunicode±àÂ룬ºº×ÖµÄUnicode±àÂ뷶ΧΪ\u4E00-\u9FA5 »ò\uF900-\uFA2D£¬Èç¹û²»ÔÚÕâ¸ö·¶Î§ÄھͲ»ÊǺº×Ö¡£ÎÒÃÇÓÃchar¶¨ÒåÒ»¸ö±äÁ¿£¬Èçchar ch='ÖÐ'; Õâʱ£¬chÊÇUnicode±àÂëµÄ¡£GBK±àÂëÓëunicode±àÂëÊDz»Í¬µÄÁ½ÖÖ±àÂ뷽ʽ£¬Òò´ËËüÃÇ´òÓ¡³öµÄÖµÊDz»Ò»ÑùµÄ¡£GBKµÄÕûÌå±àÂ뷶ΧÊÇΪ0x8140-0xFEFE£¬²»°üÀ¨µÍ×Ö½ÚÊÇ0x7FµÄ×éºÏ¡£¸ß×Ö½Ú·¶Î§ÊÇ0x81-0xFE£¬µÍ×Ö½Ú·¶Î§ÊÇ0x40-7EºÍ0x80-0xFE¡£
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   bb[0] = -42;
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   System.ou


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public static boolean isOdd(int i){
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}
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