Tokenize a string input except double quotes(")

Sample Input: abc def ghi "jkl mno" pqrs "tuv" wxyz
Expected Output: 
abc
def
ghi
"jkl mno" 
pqrs
"tuv"
wxyz

1. One of the easiest way to solve the problem statement is through Patters!!

"([^\"]\\S*|\".+?\")\\s*" - is the pattern to parse the string except double quotes.

Complete Program.

// import the required packages
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;
import java.util.regex.Matcher;

import java.util.regex.Pattern;

class TokenizeString
{
    public static void main(String [] args) {

    // user input
    System.out.println("Enter the string"); 

  // Instantiate the Scanner class 
   Scanner scanner=new Scanner(System.in);

  // store the entire line in the variable
   String queryString=sc.nextLine();

  // instantiating the ArrayList object

   List<String> list = new ArrayList<String>();

  Matcher m = Pattern.compile("([^\"]\\S*|\".+?\")\\s*").matcher(queryString);
while (m.find())
 list.add(m.group(1)); 

Iterator<String> i=list.iterator();
while(i.hasNext())
{
System.out.println(i.next());

}
 
    }

}