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GetChannel.java

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//: io/GetChannel.java

package io; /* Added by Eclipse.py */

// Getting channels from streams

import java.nio.*;

import java.nio.channels.*;

import java.io.*;

public class GetChannel {

private static final int BSIZE = 1024;

public static void main(String[] args) throws Exception {

// Write a file:

FileChannel fc =

new FileOutputStream("data.txt").getChannel();

fc.write(ByteBuffer.wrap("Some text ".getBytes()));

fc.close();

// Add to the end of the file:

fc =

new RandomAccessFile("data.txt", "rw").getChannel();

fc.position(fc.size()); // Move to the end

fc.write(ByteBuffer.wrap("Some more".getBytes()));

fc.close();

// Read the file:

fc = new FileInputStream("data.txt").getChannel();

ByteBuffer buff = ByteBuffer.allocate(BSIZE);

fc.read(buff);

buff.flip();

while(buff.hasRemaining())

System.out.print((char)buff.get());

}

} /* Output:

Some text Some more

*///:~