Why isnt this program working? It did before!

Hey all, i was using this program like a month ago, and i go to compile it and im getting errors... Here is the code...
-- cut RemoveAttacks.java --
import java.io.*;
import java.util.*;
import java.awt.*;


class RemoveAttacks {

 public static void main(String[] args) {

   if (argv.length != 3) {    
    System.err.println ("Usage: java RemoveAttacks <weblogfile> <outputfile>");
    System.exit (1); }

  try {

       System.out.println( "Where is the weblog located?" );
       System.out.println( "ex. c:\\windows\\system32\\weblog\\weblog32.txt" );
       System.out.print( "File Location: " );
        weblog = ITPInput.readLine();
       System.out.println( "What would you like the edited/stripped file name to be?" );
       System.out.print( "New File Name: " );
        newfile = ITPInput.readLine();
       
       File origFile = new File(weblog);
       BufferedReader reader = new BufferedReader(
           new FileReader(origFile));  

       File tempFile = new File(newfile);  
       PrintWriter writer = new PrintWriter(
           new FileWriter(tempFile));

       for(String line; (line = reader.readLine()) != null; ) {
         if (line.indexOf("cmd") != -1) {
           System.out.println(line); // Used
            writer.println(line); }
         }
       
       writer.close();
       reader.close();
          }
        catch(java.io.IOException e){
         System.out.println("Cannot access file");
     }
    }
}

-- end cut --

I'm getting weird errors like the argv.length, which im positive worked before along with everything else...

-- start errors --
D:\j2sdk1.4.1_02\bin>javac Removeattacks.java
Removeattacks.java:10: cannot resolve symbol
symbol  : variable argv
location: class RemoveAttacks
   if (argv.length != 3) {
       ^
Removeattacks.java:19: cannot resolve symbol
symbol  : variable weblog
location: class RemoveAttacks
        weblog = ITPInput.readLine();
        ^
Removeattacks.java:19: cannot resolve symbol
symbol  : variable ITPInput
location: class RemoveAttacks
        weblog = ITPInput.readLine();
                 ^
Removeattacks.java:22: cannot resolve symbol
symbol  : variable newfile
location: class RemoveAttacks
        newfile = ITPInput.readLine();
        ^
Removeattacks.java:22: cannot resolve symbol
symbol  : variable ITPInput
location: class RemoveAttacks
        newfile = ITPInput.readLine();
                  ^
Removeattacks.java:24: cannot resolve symbol
symbol  : variable weblog
location: class RemoveAttacks
       File origFile = new File(weblog);
                                ^
Removeattacks.java:28: cannot resolve symbol
symbol  : variable newfile
location: class RemoveAttacks
       File tempFile = new File(newfile);
                                ^
7 errors

-- end cut --

Any help would be greatly appreciated!