import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class FileParser {

/**
 *
 * @param args
 */
	public static void main(String[] args) {
		Pattern pattern = Pattern.compile(
				"(0[1-9]|1[0-2])/(0[1-9]|[1-2][0-9]|30|31)/([0-9]{4})",
				Pattern.CASE_INSENSITIVE);
		File file = new File("corpusCFPs-set1.txt");
		String fileContent = readFileAsString(file.getAbsolutePath());

		Matcher match = pattern.matcher(fileContent);
		while (match.find()) {
			System.out.println("extrait : " + match.group());
		}
	}
/**
 *
 * @param filePath
 * @return
 */
	private static String readFileAsString(String filePath) {
		byte[] buffer = new byte[(int) new File(filePath).length()];
		BufferedInputStream f = null;

		try {
			f = new BufferedInputStream(new FileInputStream(filePath));
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		try {
			f.read(buffer);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		if (f != null)
			try {
				f.close();
			} catch (IOException ignored) {
			}

		return new String(buffer);
	}
}