Write to a text file with FileChannel - Java File Path IO

Java examples for File Path IO:File Channel

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Description

Write to a text file with FileChannel

Demo Code

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardOpenOption;
import java.util.EnumSet;

public class Main {

  public static void main(String[] args) {

    Path path = Paths.get("C:/folder1/email", "test.txt");
    ByteBuffer buffer = ByteBuffer.wrap("this is a test".getBytes());

    try (FileChannel fileChannel = (FileChannel.open(path,
        EnumSet.of(StandardOpenOption.READ, StandardOpenOption.WRITE)))) {

      fileChannel.position(0);/*w  w  w.  ja v a  2  s  .c  o  m*/
      fileChannel.write(buffer);

    } catch (IOException ex) {
      System.err.println(ex);
    }
  }
}

Result


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