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java programming

I am currently going through a java programming class at Southern New Hampshire University. I really need some assistance with this lab. It is in Zybooks chapter 5 lab 5.6.1.

Instructions are as follows:

(1) Prompt the user for a string that contains two strings separated by a comma. (1 pt)

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Example:

Enter input string: Jill, Allen

(2) Report an error if the input string does not contain a comma. Continue to prompt until a valid string is entered. Note: If the input contains a comma, then assume that the input also contains two strings. (2 pts)

Example:

Enter input string: Jill Allen

Error: No comma in string

Enter input string: Jill, Allen

(3) Extract the two words from the input string and remove any spaces. Store the strings in two separate variables and output the strings. (2 pts)

Example:

Enter input string: Jill, Allen

First word: Jill

Second word: Allen

(4) Using a loop, extend the program to handle multiple lines of input. Continue until the user enters q to quit. (2 pts)

Example:

Enter input string: Jill, Allen

First word: Jill

Second word: Allen

Enter input string: Golden , Monkey

First word: Golden

Second word: Monkey

Enter input string: Washington,DC

First word: Washington

Second word: DC

Enter input string: q

This is what I have come up with so far. I am unsure of where to start loop and extracting words from userInput.

import java.util.Scanner;

public class ParseStrings {

  public static void main(String[] args) {

   Scanner scnr = new Scanner(System.in);

   String userInput = “”;

   String word1 = “”;

   String word2 = “”;

   char q = ‘q’;

    System.out.println(“Enter input string: “);

    userInput =scnr.nextLine();

   // while (!userInput.equals(“q”)) {         //exit upon the press of q

   if (userInput.contains(“,”)) {            //error report for no comma

     System.out.print(userInput);

   }

   else {

     System.out.println(“Error: no comma in string.”);

      }

      scnr.close();

   // }

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