How to read and write for Image and PDF files

[Kartik Tal]

Hi All,
I need to write a code where it has to read a file from Local Machine and Save it to Remote machine.

For text file below is the code which I had used, in this code I read each line and saved them in new text file in remote machine.
But I failed them with Image and PDF.

   
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;

public class sample {

  public static void main(String[] args) {

    File file = new File("C:\\Documents and Settings\\tkartik\\Desktop\\Integration_Server.pdf");
    FileInputStream fis = null;
    BufferedInputStream bis = null;
    DataInputStream dis = null;

    try {
      fis = new FileInputStream(file);

      bis = new BufferedInputStream(fis);
      dis = new DataInputStream(bis);
      
      BufferedWriter out = new BufferedWriter(
    	        new FileWriter("C:\\Documents and Settings\\tkartik\\Desktop\\2.pdf"));
    
      while (dis.available() != 0) {
    	out.write(dis.readLine());
        out.newLine();
      }
      out.close();
      fis.close();
      bis.close();
      dis.close();

    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}
 

[Ulf Dittmer]

Two things I noticed: Firstly, AvailableDoesntDoWhatYouThinkItDoes, and secondly, PDFs are not text files - they're binary files. That means you can't handle them them with Reader and Writer classes, you need to handle them with Stream classes.