import java.util.*;
import java.lang.*;
import java.net.*;
import java.io.*;
public class ehat {
public static void main(String args[])
{
String pattern = " den ![](\"lect01_1.gif\")
";
String []ls =null;
String content="";
try{
ls = list(args[0]," /B ");
}catch(InterruptedException e) {; }
for(int k=0;k den 
";
return pattern;
}
/** write data from "fileContent" into file with name "fileName" */
public static void writeFile(String fileName,String fileContent)
{
//System.out.println("I am writing the file:"+fileName+
// " content:"+fileContent);
try{
FileOutputStream fw = new FileOutputStream(fileName);
DataOutputStream dos = new DataOutputStream(fw);
//write fileContent to file at once
dos.writeBytes(fileContent);
}catch(IOException e){
System.err.println("There is IOException during writing file:"+e);
}
}
public static String [] list(String dir,String opts)
throws InterruptedException
{
String separator = File.separator;
boolean isExist=false,isRead=false;
Vector lines = new Vector();
//check that this directory exists first
File file = new File(dir);
try{
if (file.exists())
isExist = true;
isRead = true;
}catch(SecurityException e){
System.out.println("Security Exception "+e);
}
if (!isRead){
System.out.println(dir+" is not readable");
lines.addElement("total xx");
lines.addElement("NotReadable");
}
else if (!isExist){
System.out.println(dir+" Not Found");
lines.addElement("total xx");
lines.addElement("NotFound");
}
if ((!isRead)||(!isExist)){
System.out.println("file "+dir+" not found or not readable");
String[] retval = new String[lines.size()];
lines.copyInto(retval);
return retval;
}
try{
String line;
String cmd=null,pwd=null;
Process child;
DataInputStream in;
//start up the command
if (separator.equals("/")) //UNIX
cmd = "ls -al "+dir;
else if (separator.equals("\\")) //WIN/NT
cmd = "cmd.exe /C "+" DIR "+opts+" "+dir; //running dir on top of WIN/NT
//cmd = "command.com /C "+" DIR "+dir; //running dir on top of DOS
child = Runtime.getRuntime().exec(cmd);
System.out.println("Before DIS ");
in = new DataInputStream(child.getInputStream());
//read the command's output
while((line = in.readLine()) != null){
lines.addElement(line);
//System.out.println("line: "+line);
}
String[] retval = new String[lines.size()];
lines.copyInto(retval);
return retval;
} catch (Exception e){
throw new InterruptedException (e.toString());
}
}
}