Simple File I/O

Question

Ok, I know this is a newb question but I just cant figure out why my code wont read the file i specify on the command line. The muse of Java is not being kind to me.
When I run this program i get the exception "blah!". Any feedback would be wonderful. Thanks.
import java.io.*;
import java.lang.*;
import java.util.*;
public class Show {
public static void main(String[] argv)
          StringBuffer Filetx = null;
//Get the file name from the command input.
          try {
               String InputFile = argv[0];
               String OutputFile = argv[1];
               System.out.println(InputFile);
               System.out.println(OutputFile);
          catch (Exception e)
               System.out.println("Command line argument could not be read.");
               System.exit(0);
          //Read the input file
          try
               BufferedReader input = new BufferedReader(new FileReader(argv[0]));
               System.out.println(input);
          catch(FileNotFoundException e)
               System.out.println("Blah!");
               System.exit(0);
}

Answer 1

I have learn so far the type of error is very important. Copy the output of the compiler and post it.
You might find this example helpful it is slight different from what you are doing but the basics are there:
import java.util.StringTokenizer;
import java.util.Iterator;
import java.util.Map;
import java.util.TreeMap;
import java.util.List;
import java.util.LinkedList;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.FileReader;
class Concordance
     * A main routine that:
     * 1. Reads a file containing strings (from args[0])
     * 2. Prints each string, and the lines on which it occurs
     * Skimpy error checks to avoid clogging up the code.
    public static void main( String [ ] args )
        try
            BufferedReader inFile = new BufferedReader( new FileReader( args[0] ) );
            Map wordMap = new TreeMap( );
            String oneLine;
                // Read the words; add them to wordMap
            for( int lineNum = 1; ( oneLine = inFile.readLine( ) ) != null; lineNum++ )
                StringTokenizer st = new StringTokenizer( oneLine );
                while( st.hasMoreTokens( ) )
                    String word = st.nextToken( );
                    List lines = (List) wordMap.get( word );
                    if( lines == null )
                        lines = new LinkedList( );
                        wordMap.put( word, lines );
                    lines.add( new Integer( lineNum ) );
                // Go through the word map
              Iterator itr = wordMap.entrySet( ).iterator( );
            while( itr.hasNext( ) )
                printEntry( (Map.Entry) itr.next( ) );
         catch( IOException e )
           { e.printStackTrace( ); }
    public static void printEntry( Map.Entry entry )
             // Print the word
         System.out.println( entry.getKey( ) + ":" );
             // Now print the line numbers
         Iterator itr = ( (List)(entry.getValue( )) ).iterator( );
         System.out.print( "\t" + itr.next( ) );
         while( itr.hasNext( ) )
             System.out.print( ", " + itr.next( ) );
         System.out.println( );
}I hope this helps and let muse of Java enlighted your path ;)