Java tutorial
//package com.java2s; /** Copyright (C) 2013 Louis Teboul (a.k.a Androguide) * * admin@pimpmyrom.org || louisteboul@gmail.com * http://pimpmyrom.org || http://androguide.fr * 71 quai Clmenceau, 69300 Caluire-et-Cuire, FRANCE. * * This program 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. **/ import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.io.InputStreamReader; public class Main { private static final String BUILD_PROP = "/MultiSystem/build.prop"; public static Boolean hasBuildPropValue(String buildProp) throws Exception { Boolean has = false; String buildprop = ""; buildprop = getStringFromFile(BUILD_PROP); if (buildprop.matches(buildProp + "=.+$")) has = true; return has; } public static String getStringFromFile(String filePath) throws Exception { File fl = new File(filePath); FileInputStream fin = new FileInputStream(fl); String ret = convertStreamToString(fin); fin.close(); return ret; } public static String convertStreamToString(InputStream is) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(is)); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line).append("\n"); } return sb.toString(); } }