Copy a file with FileInputStream and FileOutputStream : FileOutputStream « File « Java Tutorial

1. Java Tutorial
2. File
3. FileOutputStream

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

class CopyFile {
  public static void main(String args[]) throws IOException {
    int i;
    FileInputStream fin;
    FileOutputStream fout;

    fin = new FileInputStream(args[0]);
    fout = new FileOutputStream(args[1]);
    do {
      i = fin.read();
      if (i != -1)
        fout.write(i);
    } while (i != -1);

    fin.close();
    fout.close();
  }
}