JAva共通ツールクラス-全角回転半角、半角回転全角
2314 ワード
全角回転半角、半角回転全角コード
/**
* <PRE>
* -> , ->
* codingwhy.com
* </PRE>
*/
public class BCConvert {
/**
* ASCII ! , 33(Decimal)
*/
static final char DBC_CHAR_START = 33; // !
/**
* ASCII ~ , 126(Decimal)
*/
static final char DBC_CHAR_END = 126; // ~
/**
* ASCII ! , 65281
*/
static final char SBC_CHAR_START = 65281; // !
/**
* ASCII ~ , 65374
*/
static final char SBC_CHAR_END = 65374; // ~
/**
* ASCII
*/
static final int CONVERT_STEP = 65248; //
/**
* , ASCII ,
*/
static final char SBC_SPACE = 12288; // 12288
/**
* , ASCII 32(Decimal)
*/
static final char DBC_SPACE = ' '; //
/**
* <PRE>
* ->
* ,! ˜ ,
* </PRE>
*/
private static String bj2qj(String src) {
if (src == null) {
return src;
}
StringBuilder buf = new StringBuilder(src.length());
char[] ca = src.toCharArray();
for (int i = 0; i < ca.length; i++) {
if (ca[i] == DBC_SPACE) { // ,
buf.append(SBC_SPACE);
} else if ((ca[i] >= DBC_CHAR_START) && (ca[i] <= DBC_CHAR_END)) { // ! ~
buf.append((char) (ca[i] + CONVERT_STEP));
} else { // ascii
buf.append(ca[i]);
}
}
return buf.toString();
}
/**
* <PRE>
* ->
* , ! ~ ,
* </PRE>
*/
public static String qj2bj(String src) {
if (src == null) {
return src;
}
StringBuilder buf = new StringBuilder(src.length());
char[] ca = src.toCharArray();
for (int i = 0; i < src.length(); i++) {
if (ca[i] >= SBC_CHAR_START && ca[i] <= SBC_CHAR_END) { // ! ~
buf.append((char) (ca[i] - CONVERT_STEP));
} else if (ca[i] == SBC_SPACE) { //
buf.append(DBC_SPACE);
} else { // , ! ~
buf.append(ca[i]);
}
}
return buf.toString();
}
public static void main(String[] args) {
String s = "nihao CODINGWHY| NIhao ,。324 123 ";
System.out.println(BCConvert.qj2bj(s));
}
}
実行結果nihao CODINGWHY| NIhao ,。324 123