What's wrong?

import java.util.*;

import java.lang.*;

import java.io.*;

public class Grades

{

public static void main(String []args)throws Exception

{

// check to see if user entered file name

// Get the name of the data file from the screen

// You should prompt user to enter the name of the

// file with data for the grades. You will need this

// file to read the meta data and the actual

// scores for the quizzes and tests.

if(args.length < 1)

{

System.out.println("Usage: java Quiz10 names.txt");

System.exit(1);

}

// create a file reader to read the data from

// a file supplied at the prompt. Using this

// FileReader, you will create an instance of

// the BufferedReader to read a line at a time

// from the file

FileReader file = new FileReader(args[0]);

BufferedReader bfile = new BufferedReader(file);

// Create an instance of BufferedReader to readLine

String line;

line = bfile.readLine();

// read the first line from the file which has

// the number of quizzes and tests. This value

// will later be used to size the array of

// various objects to hold meta and actual scores for

// the quizzes and tests

// Create a ValueTokenizer to parse the

// first 2 integers as number of quizzes and number of

// tests and save the values into 2 local variables

// (numQuizzes and numTests). These values will be used

// quite extensively later in the program to size the arrays

LineTokenizer myLine = new LineTokenizer(line);

ValueTokenizer myLine = new ValueTokenizer(line);

int numQuizzes = myLine.nextInt();

int numTests = myLine.nextInt();

// Create an array of Meta information about

// Quizzes. We will read the max Scores and

// Weight from the next 2 lines and create the

// Meta objects for Quiz and Tests. Do not forget to

// initialize each array value to a Meta object also

// Repeat the same for Tests as for the quizzes

Quizzes studentQuiz = new Quizzes(numQuizzes);

Tests studentTests = new Tests(numTests);

// read Max Scores for Quiz and Test

// Use line and value tokenizer to tokenize the

// values of max scores for the quizzes and tests

// and save them into meta objects

String line2;

line2 = bfile.readLine();

LineTokenizer myLine2 = LineTokenizer(line2);

ValueTokenizer myLine2 = ValueTokenizer(line2);

while(myLine.hasMoreTokens())

{

String token = myLine.nextToken();

System.out.println(token);

}

}

}

//Here's the LineTokenizer class

import java.util.StringTokenizer;

//

// This class takes string as arg and parses

// it into quizes, tests extra credit

public class LineTokenizer {

StringTokenizer tok = null;

public LineTokenizer(String line) {

tok = new StringTokenizer(line,";");

}

public String nextString() {

return tok.nextToken();

}

}

//Here's the ValueTokenizer class

import java.util.StringTokenizer;

//

// This class takes a string

// and return int values separated by ' '

//

public class ValueTokenizer {

StringTokenizer tok = null;

public ValueTokenizer(String str) {

tok = new StringTokenizer(str," ");

}

public int nextInt() {

String str = tok.nextToken();

if (str != null)

return Integer.parseInt(str.trim());

return -1;

}

public double nextDouble() {

String str = tok.nextToken();

if (str != null)

return Double.parseDouble(str);

return -1.0;

}

}

//Here's a bit of the file I'm trying to read

10 3 ;

3 3 3 3 3 3 3 3 3 3 ; 40 40 40 ;

2 2 2 2 2 2 2 2 2 2 ; 20 25 35 ;

A0262 ; 51030 ; 3 3 2 3 3 3 3 3 3 3 ; 33 37 39 ; 0.5 ;

A6958 ; 51050 ; 2 3 0 3 3 3 0 3 2 3 ; 26 29 31 ; 0 ;

A8338 ; 51005 ; 1 3 1 2 1 3 3 2 2 2 ; 13 25 16 ; 0 ;

B2065 ; 51005 ; 2 3 0 2 3 2 2 3 1 2 ; 21 30 28 ; 0 ;

B4563 ; 51040 ; 2 2 3 0 2 0 3 3 0 3 ; 32 28 0 ; 0 ;

Errors include

-jGRASP wedge2: exit code for process is 1.

-jGRASP: operation complete.

-jGRASP exec: javac -g D:\Java\project4classes\Grades.java

Grades.java:48: myLine is already defined in main(java.lang.String[])

ValueTokenizer myLine = new ValueTokenizer(line);

^

Grades.java:49: cannot find symbol

symbol : method nextInt()

location: class LineTokenizer

int numQuizzes = myLine.nextInt();

^

Grades.java:50: cannot find symbol

symbol : method nextInt()

location: class LineTokenizer

int numTests = myLine.nextInt();

^

Grades.java:69: cannot find symbol

symbol : method LineTokenizer(java.lang.String)

location: class Grades

LineTokenizer myLine2 = LineTokenizer(line2);

^

Grades.java:70: myLine2 is already defined in main(java.lang.String[])

ValueTokenizer myLine2 = ValueTokenizer(line2);

^

Grades.java:70: cannot find symbol

symbol : method ValueTokenizer(java.lang.String)

location: class Grades

ValueTokenizer myLine2 = ValueTokenizer(line2);

^

Grades.java:73: cannot find symbol

symbol : method hasMoreTokens()

location: class LineTokenizer

while(myLine.hasMoreTokens())

^

Grades.java:75: cannot find symbol

symbol : method nextToken()

location: class LineTokenizer

String token = myLine.nextToken();

^

8 errors

-jGRASP wedge2: exit code for process is 1.

-jGRASP: operation complete.

Message was edited by:

student022

bronzestar at 2007-7-7 14:14:29 >