import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class MainClass {
public static void main(String[] args) throws Exception {
FileChannel fc = new FileOutputStream("data2.txt").getChannel();
ByteBuffer buff = ByteBuffer.allocate(24); // More than needed
buff.asCharBuffer().put("Some text");
fc.write(buff);
fc.close();
fc = new FileInputStream("data2.txt").getChannel();
buff.clear();
fc.read(buff);
buff.flip();
System.out.println(buff.asCharBuffer());
}
}
/* */
Some text