Le portail francophone de la géomatique

import java.io.FileInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.util.regex.*;
public class TimeDetection {
    // Converts the contents of a file into a CharSequence
    // suitable for use by the regex package.
    public static CharSequence fromFile(String filename) throws IOException {
        
        FileInputStream fis = new FileInputStream(filename);
        
        FileChannel fc = fis.getChannel();

        // Create a read-only CharBuffer on the file
        ByteBuffer bbuf = fc.map(FileChannel.MapMode.READ_ONLY, 0, (int)fc.size());
        CharBuffer cbuf = Charset.forName("8859_1").newDecoder().decode(bbuf);
       
        return cbuf;
    }
    public static void main(String[] args) {
         
        try {
            // Create matcher on file
            
            Pattern pattern = Pattern.compile("dd/MM/yyyy hh:mm:ss");
           
            Matcher matcher = pattern.matcher(fromFile("nb.txt"));
            
            
            // Find all matches
            while (matcher.find()) {
                
                // Get the matching string
                String match = matcher.group();
               
            }
        } catch (IOException e) {
        }
        
}
}