MLog

public class CountLineOfTextFile { public static void main(String[] args) { int lineCnt = 0; JFileChooser fc = new JFileChooser(); fc.showOpenDialog(null); File file = fc.getSelectedFile(); try { BufferedReader in = new BufferedReader(new FileReader(file)); while(in.readLine() != null) lineCnt++; } catch(Exception ex) {ex.printStackTrace();} System.out.println(lineCnt); } }