Question

Prompt the user for a string that contains two strings separated by a comma. (1 pt)Examples of strings that can be accepted:Jill, AllenJill , AllenJill,AllenEx: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)Ex:Enter input string:Jill AllenError: No comma in string.Enter input string: Jill, Allen(3) Using string splitting, extract the two words from the input string and then remove any spaces. Output the two words. (2 pts)Ex:Enter input string:Jill, AllenFirst word: JillSecond 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)Ex:Enter input string:Jill, AllenFirst word: JillSecond word: AllenEnter input string:Golden , MonkeyFirst word: GoldenSecond word: MonkeyEnter input string:Washington,DCFirst word: WashingtonSecond word: DCEnter input string:

Answer 1

Answer:

import java.util.Scanner;

public class ParseStrings {

public static void main(String[] args) {

/* Type your code here. */

Scanner sc= new Scanner(System.in);//to read inout from user

String sentence;//to hold user input

System.out.println("Enter input string");//asking user to input string reading into sentence

sentence=sc.nextLine();

while(!sentence.equals("q"))//continues untill user enters q

{

while(!sentence.contains(","))//loop ti eport error and continue till user enters valid string

{

System.out.println("No comma in string");

System.out.println("Enter input string");

sentence=sc.nextLine();

}

//extracting words from senetnece

String word1=sentence.substring(0, sentence.indexOf(',')).trim();

String word2=sentence.substring(sentence.indexOf(',')+1).trim();

System.out.println("First word:"+word1);

System.out.println("Second word:"+word2);

System.out.println("Enter input string");//asking user to input string reading into sentence

sentence=sc.nextLine();

}

 

return;

}

}

Explanation: