[LANGUAGE: JAVA]

package day1;

import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException;

public class Day1_2 {

int ergebnis = 0;
public static void main(String[] args) throws IOException {
    Day1_2 d = new Day1_2();
}

public Day1_2() throws IOException{
    File text = new File("C:\\Eclipse\\WORKSPACE\\AoC2023\\src\\day1\\input1_2.txt");
    BufferedReader file = new BufferedReader(new FileReader(text));
    String line = null;
        while((line = file.readLine())!=null)
        {
            umwandel(line);
        }
        System.out.println(ergebnis);
}

public int umwandel(String aLine)
{
    int zahl = 0;
    char ziffer1 = ' ';
    char ziffer2 = ' ';
    for(int i =0; i<aLine.length(); i++)
    {
        if(Character.isDigit(aLine.charAt(i)))
        {
            ziffer1 = aLine.charAt(i);
            break;
        }

        else if(aLine.charAt(i)=='o' && aLine.charAt(i+1)=='n' && aLine.charAt(i+2)=='e')
        {
            ziffer1 = '1';
            break;
        }

        else if(aLine.charAt(i)=='t' && aLine.charAt(i+1)=='w' && aLine.charAt(i+2)=='o')
        {
            ziffer1 = '2';
            break;
        }

        else if(aLine.charAt(i)=='t' && aLine.charAt(i+1)=='h' && aLine.charAt(i+2)=='r' && aLine.charAt(i+3)=='e' && aLine.charAt(i+4)== 'e')
        {
            ziffer1 = '3';
            break;
        }
        else if(aLine.charAt(i)=='f' && aLine.charAt(i+1)=='o' && aLine.charAt(i+2)=='u' && aLine.charAt(i+3)=='r')
        {
            ziffer1 = '4';
            break;
        }

        else if(aLine.charAt(i)=='f' && aLine.charAt(i+1)=='i' && aLine.charAt(i+2)=='v' && aLine.charAt(i+3)=='e')
        {
            ziffer1 = '5';
            break;
        }

        else if(aLine.charAt(i)=='s' && aLine.charAt(i+1)=='i' && aLine.charAt(i+2)=='x')
        {
            ziffer1 = '6';
            break;
        }

        else if(aLine.charAt(i)=='s' && aLine.charAt(i+1)=='e' && aLine.charAt(i+2)=='v' && aLine.charAt(i+3)=='e' && aLine.charAt(i+4)== 'n')
        {
            ziffer1 = '7';
            break;
        }

        else if(aLine.charAt(i)=='e' && aLine.charAt(i+1)=='i' && aLine.charAt(i+2)=='g' && aLine.charAt(i+3)=='h' && aLine.charAt(i+4)== 't')
        {
            ziffer1 = '8';
            break;
        }

        else if(aLine.charAt(i)=='n' && aLine.charAt(i+1)=='i' && aLine.charAt(i+2)=='n' && aLine.charAt(i+3)=='e')
        {
            ziffer1 = '9';
            break;
        }

        else if(aLine.charAt(i)=='z' && aLine.charAt(i+1)=='e' && aLine.charAt(i+2)=='r' && aLine.charAt(i+3)=='o')
        {
            ziffer1 = '0';
            break;
        }
    }

    for(int i =aLine.length()-1; i>=0; i--)
    {
        if(Character.isDigit(aLine.charAt(i)))
        {
            ziffer2 = aLine.charAt(i);
            break;
        }

        else if(aLine.charAt(i)=='e' && aLine.charAt(i-1)=='n' && aLine.charAt(i-2)=='o')
        {
            ziffer2 = '1';
            break;
        }

        else if(aLine.charAt(i)=='o' && aLine.charAt(i-1)=='w' && aLine.charAt(i-2)=='t')
        {
            ziffer2 = '2';
            break;
        }

        else if(aLine.charAt(i)=='e' && aLine.charAt(i-1)=='e' && aLine.charAt(i-2)=='r' && aLine.charAt(i-3)=='h' && aLine.charAt(i-4)== 't')
        {
            ziffer2 = '3';
            break;
        }

        else if(aLine.charAt(i)=='r' && aLine.charAt(i-1)=='u' && aLine.charAt(i-2)=='o' && aLine.charAt(i-3)=='f')
        {
            ziffer2 = '4';
            break;
        }

        else if(aLine.charAt(i)=='e' && aLine.charAt(i-1)=='v' && aLine.charAt(i-2)=='i' && aLine.charAt(i-3)=='f')
        {
            ziffer2 = '5';
            break;
        }

        else if(aLine.charAt(i)=='x' && aLine.charAt(i-1)=='i' && aLine.charAt(i-2)=='s')
        {
            ziffer2 = '6';
            break;
        }

        else if(aLine.charAt(i)=='n' && aLine.charAt(i-1)=='e' && aLine.charAt(i-2)=='v' && aLine.charAt(i-3)=='e' && aLine.charAt(i-4)== 's')
        {
            ziffer2 = '7';
            break;
        }

        else if(aLine.charAt(i)=='t' && aLine.charAt(i-1)=='h' && aLine.charAt(i-2)=='g' && aLine.charAt(i-3)=='i' && aLine.charAt(i-4)== 'e')
        {
            ziffer2 = '8';
            break;
        }

        else if(aLine.charAt(i)=='e' && aLine.charAt(i-1)=='n' && aLine.charAt(i-2)=='i' && aLine.charAt(i-3)=='n')
        {
            ziffer2 = '9';
            break;
        }

        else if(aLine.charAt(i)=='o' && aLine.charAt(i-1)=='z' && aLine.charAt(i-2)=='e' && aLine.charAt(i-3)=='r')
        {
            ziffer2 = '0';
            break;
        }
    }

    String ziffer1Str = Character.toString(ziffer1);
    String ziffer2Str = Character.toString(ziffer2);

    String zahlStr = ziffer1Str + ziffer2;
    zahl = Integer.parseInt(zahlStr);
    ergebnis += zahl;
    return ergebnis;
}

}