finding the amt of words and chars in a give file

So my code compiles fine, but I get a run-time error
Exception in thread "main" java.util.NoSuchElementException
at java.util.StringTokenizer.nextToken(StringTokenize r.java:332)
at Hw13.main(Hw13.java:36)

Code :

---

import java.util.*;
import java.io.*;
 
class Main
{
public static void main ( String [] args ) throws Exception
   {
      Scanner kb = new Scanner ( System.in );
      System.out.print("Filename? ");
      String filename = kb.nextLine();
 
      Scanner sc = new Scanner ( new File ( filename ));
 
      StringTokenizer strTokenizer = new StringTokenizer(filename,".");
 
      int chars = 0;
      int words = 0;
      int charA = 0;
      int the = 0;
 
      while ( sc.hasNext())
      {
         String s = sc.next();
         words++;
      }
 
      while ( strTokenizer.hasMoreTokens())
      {
         if ( strTokenizer.nextToken().equalsIgnoreCase("the")) the++;
         if ( strTokenizer.nextToken().equalsIgnoreCase("a") ||
              strTokenizer.nextToken().equalsIgnoreCase("an")) charA++;
         strTokenizer.nextToken(); chars++;
      }
      System.out.println("chars " + chars);
      System.out.println("words " + words);
 
   }
  }

---

What's wrong with my code?

Each time around the loop you read multiple tokens (3 or 4). If you only have 1 token it is read by the first if statement. Then there are no more tokens and when the second if statement tries to read a token the exception is thrown. Perhaps you should only read 1 token each time around the loop and store it in a variable.

how would i go about putting the strings read into an array?

Simple. Read a String, insert into array. Rinse and repeat.

Ok I've redone the code but I have another issue. How do I read more than one line?

Code :

---

import java.io.*;
import java.util.*;
import java.util.StringTokenizer;
 
class Main
{
   public static void main ( String [] args ) throws Exception
   {
      Scanner kb = new Scanner ( System.in );
      System.out.print("Filename? ");
      String filename = kb.nextLine();
 
      Scanner sc = new Scanner ( new File ( filename ));
 
      int chars = 0;
      int words = 0;
      int charA = 0;
      int the = 0;
      String str = sc.nextLine();  
      StringTokenizer strTokenizer = new StringTokenizer (str," ,.");
      while ( strTokenizer.hasMoreTokens())
      {
         String s = strTokenizer.nextToken();
         if ( s.equalsIgnoreCase("the")) the++;
         if ( s.equalsIgnoreCase("a") || s.equalsIgnoreCase("an")) charA++;
         words++;
         chars+=s.length();
         System.out.println(s);
      }
 
      System.out.println("chars " + chars);
      System.out.println("words " + words);
      System.out.printf("average word length %3.2f\n",(1.0*chars/words));
      System.out.printf("a/an  %2d frequency %4.3f\n", charA,(1.0*charA/words));
      System.out.printf("the   %2d frequency %4.3f", the, (1.0*the/words));
 
   }
}

---

Depends upon what you are trying to do. One option:

var1 = read line
var2 = read line
do stuff with var1 and var2
repeat if needed.

Note that you are going to run into problems if the amount of input is odd.