StringTokenizer delimit once

Question

I want to split a string (line) by the first whitespace, but only the first.

StringTokenizer linesplit = new StringTokenizer(line," ");

Take for example "This is a test". Then I want the strings to be "This" and "is a test". How could I use StringTokenizer or is there a better option?

score 5 · Answer 1 · answered Feb 25 '14 at 13:44

5

String.split(pattern,resultlength) does it. use:

String[] splitted = line.split(" ",2);

the ',2' parameter means that the resulting Array maximum size is 2.

answered Feb 25 '14 at 13:44

pdem

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+1 Very nice solution. I didn't realise `split` had that capability. – Duncan Jones Feb 25 '14 at 13:53
Will it return "This" and "is a test" or "This" and "is" ? – FazoM Feb 25 '14 at 17:16
@Fazovsky "This" and "is a test" – pdem Feb 26 '14 at 12:31

score 2 · Accepted Answer · answered Feb 25 '14 at 13:42

2

You can do something like this:

String firstPart = line.substring(0, line.indexOf(" "));
String secondPart = line.substring(line.indexOf(" ")+1);

Check docs: http://docs.oracle.com/javase/7/docs/api/java/lang/String.html

answered Feb 25 '14 at 13:42

FazoM

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score 2 · Answer 3 · answered Feb 25 '14 at 13:43

2

you can use split

String[] a = s.split("(?<=^\\S+)\\s");

answered Feb 25 '14 at 13:43

Evgeniy Dorofeev

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score 1 · Answer 4 · answered Feb 25 '14 at 13:47

You will have to right your own logic for this. Something like this :

String[] linesplit = line.split(" ");
String firstString = linesplit[0];
String secondString = new String();
for(for int i=1; i< linesplit.length; i++)
{
    if(i==1)
    {
        secondString =  linesplit[i];
    }
    else if(i != linesplit.length-1)
    {
        secondString = seconString + " " + linesplit[i];
    }
    else
    {
        secondString = seconString + linesplit[i] + " ";
    }
}

StringTokenizer delimit once

4 Answers4