Java full-width conversion

Solution 1:

 

/**

* Full-width to half-width symbols, numbers, uppercase letters:-1, low-width to 32 h less than half-width. Convert a-Z, A-Z, 0-9 to a half * angle. ** @ Param sbcstring * @ return halfwidth string * @ author gyb */public static string sbc2dbc (string sbcstring) {If (sbcstring = NULL) {return NULL ;} stringbuffer dbcstring = new stringbuffer (""); try {byte [] bytes = NULL; For (INT I = 0; I <sbcstring. length (); I ++) {string temp = sbcstring. substring (I, I + 1); Boolean iscontainletters = pattern. matches ("[0-9a-za-z]", temp); If (! Iscontainletters) {bytes = temp. getbytes ("Unicode"); If (Bytes [3] =-1) {bytes [2] = (byte) (Bytes [2] + 32 ); bytes [3] = 0;} dbcstring. append (new string (bytes, "Unicode");} else {dbcstring. append (temp) ;}} catch (unsupportedencodingexception e) {// todo auto-generated Catch Block E. printstacktrace ();} return dbcstring. tostring ();}/*** it refers to the half-width to the full-width. It is a number with a letter high of 0 and a half-width to 32 h more than the full-width. Convert the letter A-Z, A-Z, 0-9 out of the symbols into * for full angle, database storage. * @ Param dbcstring * @ return full-width string ** @ author gyb */public static string dbc2sbc (string dbcstring) {If (dbcstring = NULL) {return NULL ;} stringbuffer sbcstring = new stringbuffer (""); try {byte [] bytes = NULL; For (INT I = 0; I <dbcstring. length (); I ++) {string temp = dbcstring. substring (I, I + 1); Boolean iscontainletters = pattern. matches ("[0-9a-za-z]", temp); If (! Iscontainletters) {bytes = temp. getbytes ("Unicode"); If (Bytes [3] = 0) {bytes [2] = (byte) (Bytes [2]-32 ); bytes [3] =-1;} sbcstring. append (new string (bytes, "Unicode");} else {sbcstring. append (temp) ;}} catch (unsupportedencodingexception e) {// todo auto-generated Catch Block E. printstacktrace ();} return sbcstring. tostring ();} solution 2:

Package test;

Import java. util .*;

Public class multidimarray {
/**
* Halfwidth fullwidth conversion and replacement of halfwidth fullwidth white space
* @ Author maochangming
*/

Public static void main (string [] ARGs) throws exception {
Try {
// Remove spaces at the beginning and end, whether it is full-width half-width:
String S = "nihaohk nihehe ";
System. Out. println ("S. Length =" + S. Length ());
// S = S. replaceall ("^ // s * | // s * $ ","");
S = S. replaceall ("(^ [|] * | [|] * $ )","");
S = S. replaceall ("","");
System. Out. println ("S. Length =" + S. Length ());
System. Out. println ("s =" + S );

String qjstr = "hello ";
String qjstr1 = "hello ";

String result = bqchange (qjstr );
String result1 = qbchange (qjstr1 );

System. Out. println (qjstr + "/N" + result );
System. Out. println (qjstr1 + "/N" + result1 );
} Catch (exception ex ){
Throw new Exception ("ERROR:" + ex. getMessage ());
}
}

/**
* Halfwidth to fullwidth
* @ Param QJstr
* @ Return
*/
Public static final String BQchange (String QJstr ){
String outStr = "";
String Tstr = "";
Byte [] B = NULL;

For (INT I = 0; I <qjstr. Length (); I ++ ){
Try {
Tstr = qjstr. substring (I, I + 1 );
B = tstr. getbytes ("Unicode ");
} Catch (Java. Io. unsupportedencodingexception e ){
E. printStackTrace ();
}

If (B [3]! =-1 ){
B [2] = (byte) (B [2]-32 );
B [3] =-1;
Try {
OutStr = outStr + new String (B, "unicode ");
} Catch (java. io. UnsupportedEncodingException e ){
E. printStackTrace ();
}
} Else
OutStr = outStr + Tstr;
}

Return outStr;
}

/**
* Full-width to half-width
* @ Param QJstr
* @ Return
*/
Public static final String QBchange (String QJstr ){
String outStr = "";
String Tstr = "";
Byte [] B = NULL;

For (INT I = 0; I <qjstr. Length (); I ++ ){
Try {
Tstr = qjstr. substring (I, I + 1 );
B = tstr. getbytes ("Unicode ");
} Catch (Java. Io. unsupportedencodingexception e ){
E. printstacktrace ();
}

If (B [3] =-1 ){
B [2] = (byte) (B [2] + 32 );
B [3] = 0;
Try {
Outstr = outstr + new string (B, "Unicode ");
} Catch (Java. Io. unsupportedencodingexception e ){
E. printstacktrace ();
}
} Else
Outstr = outstr + tstr;
}

Return outstr;
}

}