18) Write a complete Java program using the StringTokenizer class that computes and displays the average of a list of grades read from the command line. Each grade should be entered on the same line separated by commas. Enter signifies the end of the input.

Question

What will be an ideal response?

Answer 1

```
import java.util.Scanner;
import java.util.StringTokenizer;
public class tokenAverager
{
public static void main(String[] args)
{
//Local variables
Scanner keyboard = new Scanner(System.in);
int sum = 0;
int count = 0;
double average = 0;
System.out.println("Enter your grades, placing a space between each grade.");
System.out.println("Press enter when you are finished.");
String grades = keyboard.nextLine();
StringTokenizer tk = new StringTokenizer(grades, " ");
while(tk.hasMoreTokens())
{
sum += Integer.parseInt(tk.nextToken());
count++;
}
average = sum/count;
System.out.println("The class average is " + average);
}
}
```