How to create program that extracts all words given inside double quotes as command line parameters

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I need to create a program that where you put a string inside double quotes and it passes as a single command line parameter, with only a single space separating the words, without using StringTokenizer. You would enter " $ java Comm "this is a test" " and the output would be:
[this]
[is]
[a]
[test]

What I have tried:

Here's what I have so far, I can get it to print out the first word, but I can't figure out how to get it to print the rest:

Java

public class Comm
{

    public static void main(String argv[])
    {
        if (argv.length != 1)
        {
            System.out.println("usage:  Comm \"STRING IN QUOTES\"");
            System.exit(0);
        }

        String str = argv[0];

        String token;
        int space = str.indexOf(' ');
        int i = 0;

        while(i<argv.length)
        {
            token = str.substring(0, space);
            System.out.println("[" + token + "]");
            i++;
        }


    
    }
}

Posted 17-Jun-16 4:21am

Member 12589834

Updated 17-Jun-16 6:05am

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Richard MacCutchan · Accepted Answer · 2016-06-17T06:05:00

You are starting your substring search from the beginning each time. You also increment i only by one, rather than setting it to the start of the next token each time. Try the following: