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遍历UTF8的三字节字符,查找出字符大写后长度>1的字符。
Unicode符号范围 | UTF-8编码方式
------------------------+---------------------------------------------
0000 0000-0000 007F | 0xxxxxxx(单字节)
0000 0080-0000 07FF | 110xxxxx 10xxxxxx(2字节)
0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx(3字节)
0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx(4字节)
结果如下:
|char_utf8|char_unicode|char_lower|char_upper|
|---------|------------|----------|----------|
|E1BA96 |1e96 |? |H? |
|E1BA97 |1e97 |? |T? |
|E1BA98 |1e98 |? |W? |
|E1BA99 |1e99 |? |Y? |
|E1BA9A |1e9a |? |A? |
|E1BD90 |1f50 |? |Υ? |
|E1BD92 |1f52 |? |Υ?? |
|E1BD94 |1f54 |? |Υ?? |
|E1BD96 |1f56 |? |Υ?? |
|E1BE80 |1f80 |? |?Ι |
|E1BE81 |1f81 |? |?Ι |
|E1BE82 |1f82 |? |?Ι |
|E1BE83 |1f83 |? |?Ι |
|E1BE84 |1f84 |? |?Ι |
|E1BE85 |1f85 |? |?Ι |
|E1BE86 |1f86 |? |?Ι |
|E1BE87 |1f87 |? |?Ι |
|E1BE88 |1f88 |? |?Ι |
|E1BE89 |1f89 |? |?Ι |
|E1BE8A |1f8a |? |?Ι |
|E1BE8B |1f8b |? |?Ι |
|E1BE8C |1f8c |? |?Ι |
|E1BE8D |1f8d |? |?Ι |
|E1BE8E |1f8e |? |?Ι |
|E1BE8F |1f8f |? |?Ι |
|E1BE90 |1f90 |? |?Ι |
|E1BE91 |1f91 |? |?Ι |
|E1BE92 |1f92 |? |?Ι |
|E1BE93 |1f93 |? |?Ι |
|E1BE94 |1f94 |? |?Ι |
|E1BE95 |1f95 |? |?Ι |
|E1BE96 |1f96 |? |?Ι |
|E1BE97 |1f97 |? |?Ι |
|E1BE98 |1f98 |? |?Ι |
|E1BE99 |1f99 |? |?Ι |
|E1BE9A |1f9a |? |?Ι |
|E1BE9B |1f9b |? |?Ι |
|E1BE9C |1f9c |? |?Ι |
|E1BE9D |1f9d |? |?Ι |
|E1BE9E |1f9e |? |?Ι |
|E1BE9F |1f9f |? |?Ι |
|E1BEA0 |1fa0 |? |?Ι |
|E1BEA1 |1fa1 |? |?Ι |
|E1BEA2 |1fa2 |? |?Ι |
|E1BEA3 |1fa3 |? |?Ι |
|E1BEA4 |1fa4 |? |?Ι |
|E1BEA5 |1fa5 |? |?Ι |
|E1BEA6 |1fa6 |? |?Ι |
|E1BEA7 |1fa7 |? |?Ι |
|E1BEA8 |1fa8 |? |?Ι |
|E1BEA9 |1fa9 |? |?Ι |
|E1BEAA |1faa |? |?Ι |
|E1BEAB |1fab |? |?Ι |
|E1BEAC |1fac |? |?Ι |
|E1BEAD |1fad |? |?Ι |
|E1BEAE |1fae |? |?Ι |
|E1BEAF |1faf |? |?Ι |
|E1BEB2 |1fb2 |? |?Ι |
|E1BEB3 |1fb3 |? |ΑΙ |
|E1BEB4 |1fb4 |? |?Ι |
|E1BEB6 |1fb6 |? |Α? |
|E1BEB7 |1fb7 |? |Α?Ι |
|E1BEBC |1fbc |? |ΑΙ |
|E1BF82 |1fc2 |? |?Ι |
|E1BF83 |1fc3 |? |ΗΙ |
|E1BF84 |1fc4 |? |?Ι |
|E1BF86 |1fc6 |? |Η? |
|E1BF87 |1fc7 |? |Η?Ι |
|E1BF8C |1fcc |? |ΗΙ |
|E1BF92 |1fd2 |? |Ι?? |
|E1BF93 |1fd3 |? |Ι?? |
|E1BF96 |1fd6 |? |Ι? |
|E1BF97 |1fd7 |? |Ι?? |
|E1BFA2 |1fe2 |? |Υ?? |
|E1BFA3 |1fe3 |? |Υ?? |
|E1BFA4 |1fe4 |? |Ρ? |
|E1BFA6 |1fe6 |? |Υ? |
|E1BFA7 |1fe7 |? |Υ?? |
|E1BFB2 |1ff2 |? |?Ι |
|E1BFB3 |1ff3 |? |ΩΙ |
|E1BFB4 |1ff4 |? |?Ι |
|E1BFB6 |1ff6 |? |Ω? |
|E1BFB7 |1ff7 |? |Ω?Ι |
|E1BFBC |1ffc |? |ΩΙ |
|EFAC80 |fb00 |? |FF |
|EFAC81 |fb01 |? |FI |
|EFAC82 |fb02 |? |FL |
|EFAC83 |fb03 |? |FFI |
|EFAC84 |fb04 |? |FFL |
|EFAC85 |fb05 |? |ST |
|EFAC86 |fb06 |? |ST |
|EFAC93 |fb13 |? |?? |
|EFAC94 |fb14 |? |?? |
|EFAC95 |fb15 |? |?? |
|EFAC96 |fb16 |? |?? |
|EFAC97 |fb17 |? |?? |
Java代码如下:
/**
*
*/
package com.gdxsoft.temp;
import java.io.UnsupportedEncodingException;
/**
* 遍历UTF8中的小写转大写后长度大于一的字符
* @author admin
*
*/
public class FindLowerNotEqualsUpperChar {
public static void main(String[] args) throws UnsupportedEncodingException {
FindLowerNotEqualsUpperChar o = new FindLowerNotEqualsUpperChar();
o.findLowerNotEqualsUpperChar();
}
/**
* 遍历3字节的utf8
* @throws UnsupportedEncodingException
*
*/
public void findLowerNotEqualsUpperChar() throws UnsupportedEncodingException {
// Unicode符号范围 | UTF-8编码方式
// 0000 0000-0000 007F | 0xxxxxxx(单字节)
// 0000 0080-0000 07FF | 110xxxxx 10xxxxxx(2字节)
// 0000 0800-0000 FFFF | 1110xxxx 10xxxxxx 10xxxxxx(3字节)
// 0001 0000-0010 FFFF | 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx(4字节)
//
// 第零字节开始
byte start = bit2byte("1110xxxx".replace("x", "0"));
// 第零字节结束
byte end = bit2byte("1110xxxx".replace("x", "1"));
// 第1、第2字节开始
byte extStart = bit2byte("10xxxxxx".replace("x", "0"));
// 第1、第2字节结束
byte extEnd = bit2byte("10xxxxxx".replace("x", "1"));
int total = 0;
StringBuilder sb = new StringBuilder();
for (byte byte0 = start; byte0 <= end; byte0++) {
for (byte byte1 = extStart; byte1 <= extEnd; byte1++) {
for (byte byte2 = extStart; byte2 <= extEnd; byte2++) {
// 3字节字符的二进制
byte[] charBytes = new byte[3];
charBytes[0] = byte0;
charBytes[1] = byte1;
charBytes[2] = byte2;
// 转换为字符
String newChar = new String(charBytes, "utf-8");
// 大写
String newCharUpper = newChar.toUpperCase();
if (newChar.length() == newCharUpper.length()) {
// 长度一致
continue;
}
String hexUtf8 = this.bytes2hex(charBytes); // utf8 内码
String hexUnicode = Integer.toHexString(newChar.codePointAt(0)); // unicode 内码
sb.append(newChar + "\t" + newCharUpper + "\t" + hexUtf8 + "\t" + hexUnicode + "\n");
total++;
}
}
}
System.out.println("total:" + total);
System.out.println(sb);
}
/**
* 将二进制转换为字节
*
* @param binary 二进制字符串
* @return
*/
private byte bit2byte(String binary) {
byte result = 0;
for (int i = binary.length() - 1, j = 0; i >= 0; i--, j++) {
byte b = Byte.parseByte(binary.charAt(i) + "");
if (b == 1) {
result += b * Math.pow(2, j);
}
}
return result;
}
/**
* 将byte数组转换为16进制字符串
*
* @param b byte数组
* @return 16进制字符串
*/
private String bytes2hex(byte[] bytes) {
String stmp = "";
StringBuilder sb = new StringBuilder();
for (int n = 0; n < bytes.length; n++) {
stmp = (java.lang.Integer.toHexString(bytes[n] & 0XFF));
if (stmp.length() == 1)
sb.append("0" + stmp);
else
sb.append(stmp);
}
return sb.toString().toUpperCase();
}
}
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