Problem formating StringBuffer/Text with Properties

Question

Hi my Java good Freinds,
I have the following toString BufferedString named buf which i got from reading my serialPort getInputStream:
0111XXX01XXX0001XXX01XXXXXXX11XXX000XXXXXXX110XXX111XXX111XXX100
and i have the following Properties file named "proptab":
0111=J
01=A
0001=V
11=I
000=S
110=G
111=O
100=D
i used the following pseudo code to format/translate the buffered String in order to get the following:
JAVA IS GOOD
String str = buf.toString();
StringBuffer result = new StringBuffer();
int pos;
int count=0;
String output="";
table = new Properties();
try {
FileInputStream morsehashinput;
tabinput = new FileInputStream( "proptab" );
table.load( tabinput );
tabinput.close();
catch( IOException ex ) {
System.out.print("File not found");
if((pos = tmp.indexOf("XXX")) != -1) {
result.append( table.getProperty(str.substring(count,pos)) );
count = += pos;
if((pos = tmp.indexOf("XXXXXXX")) != -1) {
result.append(" ");
output = result.toString();
JOptionPane.showMessageDialog( null, output,
"Demonstrating String Class \"index\" Methods",
JOptionPane.INFORMATION_MESSAGE );
System.exit( 0 );
when i run this code instead of getting JAVA IS GOOD, i only get J
please i want to know what is wrong with the code or preferably another better way to retrieve and translate the data from the buffered String

Answer 1

The reason you only get 1 character is that you only process one substring. You need a loop construct.
Use StringTokeniser for these easy parsing operations.
    String s = "0111XXX01XXX0001XXX01XXXXXXX11XXX000XXXXXXX110XXX111XXX111XXX100";
    Map map = new HashMap();
    map.put("0111","J");
    map.put("01","A");
    map.put("0001","V");
    map.put("01","A");
    map.put("0111","I");
    map.put("000","S");
    map.put("110","G");
    map.put("111","O");
    map.put("100","D");
    StringTokenizer st = new StringTokenizer(s,"XXX");
    while (st.hasMoreTokens()) {
      String token = st.nextToken();
      if (map.containsKey(token))
        System.out.print(map.get(token));
      else
        System.out.print(" ");
    }BTW you've got some empty substrings in your source string, you may want to consider putting in expressions for blanks like "0" = " ".
Dave