Java基础之写文件——创建通道并且写文件（TryChannel）

 import static java.nio.file.StandardOpenOption.*;

 import java.nio.channels.WritableByteChannel;

 import java.io.IOException;

 import java.nio.ByteBuffer;

 import java.util.EnumSet;

 import java.nio.file.*;

 public class TryChannel {

   public static void main(String[] args) {

     String[] sayings = {"The more you plan the luckier you get.",

                         "The time to complete a project is the time one person would need to complete it " +

                         "multiplied by the number of people on the project.",

                         "If at first you don't succeed, remove any evidence that you tried.",

                         "A clever person solves problems, a wise person avoids them.",

                         "Death is nature's way of telling you to slow down.",

                         "A hen is an egg's way of making other eggs.",

                         "The earlier you begin coding the later you finish.",

                         "Anything you can't understand is intuitively obvious."};

     String separator = System.lineSeparator();

     Path file = Paths.get(System.getProperty("user.home")).resolve("Beginning Java Struff").resolve("MoreSaying.txt");             // The file path

     try {

       // Create parent directory if it doesn't exist

       Files.createDirectories(file.getParent());

     } catch(IOException e) {

       System.err.println("Error creating directory: " + file.getParent());

       e.printStackTrace();

       System.exit(1);

     }

     System.out.println("New file is: " + file);

     ByteBuffer buf = null;                                           // Buffer to hold a saying

     try(WritableByteChannel channel = Files.newByteChannel(file, EnumSet.of(CREATE, WRITE))){

       // Write sayings to the file

       for(String saying : sayings) {

         buf = ByteBuffer.wrap((saying + separator).getBytes());  // Saying & separator in buffer

         channel.write(buf);

       }

       System.out.println("File written.");

     } catch (IOException e) {

       e.printStackTrace();

     }

   }

 }