Java File Copy nio copy(File a, File b)

Description

copy

License

Apache License

Declaration

public static boolean copy(File a, File b) throws IOException 

Method Source Code

//package com.java2s;
/*/*w  w  w  . j a v  a2s. c  om*/
 * Copyright 2013 Websquared, Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import java.nio.channels.FileChannel;

public class Main {
    public static boolean copy(File a, File b) throws IOException {
        FileChannel fc1 = new FileInputStream(a).getChannel();
        if (b.exists())
            b.delete();
        FileChannel fc2 = new FileOutputStream(b).getChannel();

        long count1 = fc1.size();
        fc1.transferTo(0, count1, fc2);

        fc1.close();
        fc2.close();
        return true;
    }
}

Related

1. copy(File base_path, File in, File out)
2. copy(File copied, File destination)
3. copy(File file, File toDirectory)
4. copy(File from, File to)