1. import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringsBetweenQuotes {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a string: ");
String str = sc.nextLine();
//Close scanner
sc.close();
//Regex
String regex = ""((?:.|[^"])*)"";
Pattern patt = Pattern.compile(regex);
Matcher matcher = patt.matcher(str);
int start = 0;
while(matcher.find(start)) {
String outputStr = matcher.group(1);
System.out.println(outputStr);
start = matcher.end(1) + 1;
}
}
}
SAMPLE OUTPUT:
Enter a string:
No strings on this line.
Enter a string:
Two "quoted strings" in "this line".
quoted strings
this line
Enter a string:
This string "contains an " escaped quote mark".
contains an " escaped quote mark
Enter a string:

2. This string "contains a b c d a bunch of escaped" characters
contains a b c d a bunch of escaped
Enter a string:
No strings "on this line either
Enter a string:
This is "a tricky one"
a tricky one
Enter a string:
So is "this one
Enter a string:
"
Solution
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringsBetweenQuotes {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter a string: ");
String str = sc.nextLine();
//Close scanner
sc.close();
//Regex
String regex = ""((?:.|[^"])*)"";
Pattern patt = Pattern.compile(regex);
Matcher matcher = patt.matcher(str);
int start = 0;
while(matcher.find(start)) {
String outputStr = matcher.group(1);
System.out.println(outputStr);
start = matcher.end(1) + 1;
}

3. }
}
SAMPLE OUTPUT:
Enter a string:
No strings on this line.
Enter a string:
Two "quoted strings" in "this line".
quoted strings
this line
Enter a string:
This string "contains an " escaped quote mark".
contains an " escaped quote mark
Enter a string:
This string "contains a b c d a bunch of escaped" characters
contains a b c d a bunch of escaped
Enter a string:
No strings "on this line either
Enter a string:
This is "a tricky one"
a tricky one
Enter a string:
So is "this one
Enter a string:
"