correction made |
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 Cpt SAJChurchey public static String hex2Text(String str){
if(str == null || str.trim().length() == 0)
return "";
str = str.trim().toLowerCase();
if(str.matches("[^0-9a-f\\s]")){
/*
User needs to be warned that their input is invalid
Method must terminate
*/
return ""; //Until proper exception can be written
}
StringTokenizer tokenizedStr = new StringTokenizer(str);
StringBuffer text = new StringBuffer();
while(tokenizedStr.hasMoreTokens()){
String hexString = tokenizedStr.nextToken();
int bytelen = hexString.length();
if(bytelen > 4){
//User needs to be told input is not valid
return ""; //Until exception can be written.
}
int decimal = Integer.parseInt(hexString,16);
char textEquivalent = (char) decimal;
text.append(textEquivalent);
}//end while
return text.toString();
}
Cpt SAJChurchey
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