/******************************************************************************
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, Java, PHP, Ruby, Perl,
C#, OCaml, VB, Swift, Pascal, Fortran, Haskell, Objective-C, Assembly, HTML, CSS, JS, SQLite, Prolog.
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Main {
public static void main(String[] args) {
String field = "finInstKey";
String regex = "\"?" + field + "\"?(\\s*:\\s*\"?([^\",}]*)\"?|\",\"value\"\\s*:\\s*\"?([^\",}]*)\"?)";
String input = "{\"finInstKey\":500},{\"name\":\"finInstKey\",\"value\":12345678900987654321}{finInstKey:\"500\"},{\"name\":\"finInstKey\",\"value\":\"12345678900987654321\"}";
Pattern pattern = Pattern.compile(regex, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(input);
while (matcher.find()) {
if (matcher.group(2) != null) {
System.out.println(matcher.group(2));
} else {
System.out.println(matcher.group(3));
}
}
}
}
