Java tutorial
//package com.java2s; /* The Martus(tm) free, social justice documentation and monitoring software. Copyright (C) 2002-2007, Beneficent Technology, Inc. (The Benetech Initiative). Martus is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version with the additions and exceptions described in the accompanying Martus license file entitled "license.txt". It is distributed WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, including warranties of fitness of purpose or merchantability. See the accompanying Martus License and GPL license for more details on the required license terms for this software. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ import java.io.File; import java.io.FileReader; import java.io.IOException; import java.io.LineNumberReader; public class Main { static long getLineCountForFile(File file) throws IOException { LineNumberReader in = new LineNumberReader(new FileReader(file)); long numLines = 0; while (in.readLine() != null) ; numLines = in.getLineNumber(); in.close(); return numLines; } }