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String Tokenizer

 
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hi,
I read a lot about string tokenizer and stream tokeniser. I was unable to figure out the differenr between them and what do we need it.
The only thing I came to know is it splits up the string with some delimiters.
ALkesh
 
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Hi
StringTokenizer breaks a String object into parts. It does this in the following way....
<BLOCKQUOTE>code:
<pre>
String sStr = new String("John,1,44,2,55,3,66");
// Breakin my string at the commas.
// Note that the tokenizer ignore the actual
// delimiter, in this case the ","
StringTokenizer tokens = new StringTokenizer(sStr,",");
// iterating through my tokens.
while (tokens.hasMoreTokens()) {
System.out.println("Token value: " + tokens.nextToken());
}
// This prints out the following:
// Token Value: John
// Token Value: 1
// Token Value: 44
// Token Value: 2
// Token Value: 55
// Token Value: 3
// Token Value: 66
</pre>
</BLOCKQUOTE>
Now a 'StreamToknizer' does the exact same thing as Above, BUT, instead of using a String obect is uses one of the InputStream objects like AudioInputStream, ByteArrayInputStream, FileInputStream, FilterInputStream, InputStream, ObjectInputStream, PipedInputStream, SequenceInputStream, StringBufferInputStream.
If you wanted to convert a stream to a 'string' you would have to get the byte array (which is what a Stream returns) and convert it into a string.
In a nutshell: the StreamTokenizer allows you to split information coming from an InputStream without going through the added hassle of converting it all into a byte array (byte[]) and then storing this into a String object.
Hope I didn't confuse you too much.
[This message has been edited by John Bateman (edited March 14, 2000).]
 
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