How do i iterate through this html document.

I trying to read in an html file which looks like this
<ID>1</ID>
<BODY>blah bal blah
blah bal blah.
</BODY>
<ID>5</ID>
<BODY>blah bal blah
blah bal blah.
</BODY>
<ID>7</ID>
<BODY>blah bal blah
blah bal blah.
</BODY>
Problem is i need to record the id numbers and do stuff with the text in the body.
So my final result should be one file with each id # followed by the manupulated text in each body. so far i cant find any examples on iterating through html docs.
...ANY IDEAS??
tx in advance :)

I used the tokens....
FileReader file = new FileReader("problemFile.txt");
StreamTokenizer inputStream = new StreamTokenizer(file);
// read into Vector caled vec.
int tokenType = inputStream.nextToken();
for(int index = 0; tokenType != StreamTokenizer.TT_EOF;)
AStrVarable = inputStream.sval;
if (name != null)//ommiting the numbers.numbers returns null for sval
vec.add(AStrVarable);
tokenType = inputStream.nextToken();
but this just treats the file as one big block. im need to loop through all instances of "<ID>1</ID>" ids, return the id number and then for each id process the contents (bla bla bla)of the "<BODY>bla bla blah </BODY>" bodies.
thanks for ur suggetions

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