StrTokDemo4public class StrTokDemo4 extends Object | Show using a StringTokenizer including getting the delimiters back |
| Fields Summary |
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| public static final int | MAXFIELDS | | public static final String | DELIM |
| Methods Summary |
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| public static void | main(java.lang.String[] a)
printResults("A|B|C|D", process("A|B|C|D"));
printResults("A||C|D", process("A||C|D"));
printResults("A|||D|E", process("A|||D|E"));
| | public static void | printResults(java.lang.String input, java.lang.String[] outputs)
System.out.println("Input: " + input);
for (int i=0; i<outputs.length; i++)
System.out.println("Output " + i + " was: " + outputs[i]);
| | public static java.lang.String[] | process(java.lang.String line)Processes one String, returns it as an array of fields
String[] results = new String[MAXFIELDS];
// Unless you ask StringTokenizer to give you the tokens,
// it silently discards multiple null tokens.
StringTokenizer st = new StringTokenizer(line, DELIM, true);
int i = 0;
// stuff each token into the current slot in the array.
while (st.hasMoreTokens()) {
String s = st.nextToken();
if (s.equals(DELIM)) {
if (i++>=MAXFIELDS)
// This is messy: See StrTokDemo4b which uses
// a Vector to allow any number of fields.
throw new IllegalArgumentException("Input line " +
line + " has too many fields");
continue;
}
results[i] = s;
}
return results;
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