test, Java - rextester

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//'main' method must be in a class 'Rextester'.
//Compiler version 1.8.0_111

import java.util.*;
import java.lang.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

class Rextester
{  
    public static void main(String args[])
    {
        final String regex = "(?<!GAS )TOTAL\\s*(\\$\\d+\\.\\d+)";
        final String string = "SPEEDWAY 3007906          \n"
             + "Wallace NC 28466          \n"
             + "TRAM: 1086244             \n"
             + "9/17/2017  2:12 pm        \n"
             + "Pump 08                   \n"
             + "Regular Unleaded          \n"
             + "8,716 @ $2,639/6131       \n"
             + "GAS TOTAL           $23.00\n"
             + "TAX                 $0.03 \n"
             + "TOTAL               $23.80\n"
             + "Uisa ";

final Pattern pattern = Pattern.compile(regex);
        final Matcher matcher = pattern.matcher(string);

while (matcher.find()) {
            System.out.println("Full match: " + matcher.group(0));
            for (int i = 1; i <= matcher.groupCount(); i++) {
                System.out.println("Group " + i + ": " + matcher.group(i));
            }
        }
    }
}

[ + ] Show input
Compilation time: 0.93 sec, absolute running time: 0.25 sec, cpu time: 0.23 sec, memory peak: 18 Mb, absolute service time: 1,19 sec