//: io/GetChannel.java // 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 *///:~