Here you can find the source of readFileEncoding(String file)
public static String readFileEncoding(String file)
//package com.java2s; /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana * * Copyright (C) 2008 IVER T.I. and Generalitat Valenciana. * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA. *//* w w w . j a v a2 s.c om*/ import java.io.BufferedReader; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; public class Main { public static String readFileEncoding(String file) { FileReader fr; String encoding = null; try { fr = new FileReader(file); BufferedReader br = new BufferedReader(fr); char[] buffer = new char[100]; br.read(buffer); StringBuffer st = new StringBuffer(new String(buffer)); String searchText = "encoding=\""; int index = st.indexOf(searchText); if (index > -1) { st.delete(0, index + searchText.length()); encoding = st.substring(0, st.indexOf("\"")); } fr.close(); } catch (FileNotFoundException ex) { ex.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return encoding; } }