Java tutorial
//package com.java2s; /* Copyright (C) 2015, University of Kansas Center for Research * * Specify Software Project, specify@ku.edu, Biodiversity Institute, * 1345 Jayhawk Boulevard, Lawrence, Kansas, 66045, USA * * 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.BufferedWriter; import java.io.File; import java.io.FileNotFoundException; import java.io.FileWriter; import java.io.IOException; import java.io.Writer; public class Main { /** * Writes out the contents. * @param outFile outFile * @param contents contents * @throws FileNotFoundException FileNotFoundException * @throws IOException IOException */ public static void setContents(final File outFile, final String contents) throws FileNotFoundException, IOException { if (outFile == null) { throw new IllegalArgumentException("File should not be null."); //$NON-NLS-1$ } if (outFile.exists()) { if (!outFile.isFile()) { throw new IllegalArgumentException("Should not be a directory: " + outFile); //$NON-NLS-1$ } if (!outFile.canWrite()) { throw new IllegalArgumentException("File cannot be written: " + outFile); //$NON-NLS-1$ } } Writer output = null; try { output = new BufferedWriter(new FileWriter(outFile)); if (contents != null) { output.write(contents); output.flush(); } } finally { if (output != null) { output.close(); } } } }