xD

package tk.evilus;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;

public class IntegersInTextFile {
    private ArrayList<Integer> integers;
    private File file;


    private void doSearchForIntegers() {
        String line;
        try {
            FileReader fileReader = new FileReader(file);
            BufferedReader bufferedReader = new BufferedReader(fileReader);

            while ((line = bufferedReader.readLine()) != null)  {
                String tmp[] = line.split(" ");
                for (int i=0; i<tmp.length; i++) {
                    String[] tmp2 = tmp[i].split("\\.\\(\\),");
                    for (int j=0; j<tmp2.length; j++) {
                        if (tmp2[j].matches("\\d")) {
                            integers.add(Integer.getInteger(tmp2[j]));
                        }
                    }
                }
            }
        } catch (FileNotFoundException e) {
            System.err.println("Unable to open this file");
            return;
        } catch (IOException e) {
            System.err.println("Error when reading file");
            return;
        }
    }

    public ArrayList<Integer> getIntegers() {
        return integers;
    }

    IntegersInTextFile(File file) {
        this.file = file;
        doSearchForIntegers();
    }
}