Strings and Things - Java - page 86

StrTokDemo3.java

StringTokenizer st =
new new StringTokenizer ( "Hello, World|of|Java" , ", |" , true true );

while while ( st . hasMoreElements ( ))

System . out . println ( "Token: " + st . nextElement ( ));

and you get this output:

C:\> java strings.StrTokDemo3
Token: Hello
Token: ,
Token:
Token: World
Token: |
Token: of
Token: |
Token: Java
C:\>

This isn't how you'd like StringTokenizer to behave, ideally, but it is serviceable enough
most of the time. Example 3-1 processes and ignores consecutive tokens, returning the res-
ults as an array of String s.

Example 3-1. StrTokDemo4.java (StringTokenizer)
public public class class StrTokDemo4 StrTokDemo4 {

public public final final static static int int MAXFIELDS = 5 ;

public public final final static static String DELIM = "|" ;

/** Processes one String, returns it as an array of Strings */
public

public static static String [] process ( String line ) {

String [] results = new new String [ MAXFIELDS ];

// Unless you ask StringTokenizer to give you the tokens,
// it silently discards multiple null tokens.
StringTokenizer st = new new StringTokenizer ( line , DELIM , true true );

int int i = 0 ;

// stuff each token into the current slot in the array.
while while ( st . hasMoreTokens ()) {

String s = st . nextToken ();