Have a problem on line 128 : out.println("Location \tAveragePrice"); Not recognize it.And the program not compiling.
Have a txt file(cars.txt) :
CARREG MAKE MODEL COLOUR LOCATIOn PRICE OWNERS MILEAGE
09-L-1258 OPEL ASTRA SILVER LIMERICK 12999 0 35000
01-D-7845 FORD FOCUS BLACK LIMERICK 1500 3 85000
11-D-7425 NISSAN ALMERA WHITE DUBLIN 21000 0 0
06-C-1758 PEUGEOT A306 SILVER CORK 9999 2 58500
10-CE-63 HYUNDAI ACCENT RED DUBLIN 18000 1 12250
11-D-8956 AUDI A6 BLACK DUBLIN 75000 0 0
08-W-1373 FORD FOCUS BLACK CORK 7900 2 45989
04-DL-31 OPEL CORSA GREEN CORK 1900 3 67900
10-LK-123 BMW X1 SILVER DUBLIN 28700 1 14223
98-C-6661 FIAT BRAVO YELLOW CORK 750 5 43900
01-LK-98 RENALT LAGUNA GREEN LIMERICK 995 2 159000
00-KK-1211 SEAT IBIZA RED DUBLIN 975 1 110000
11-D-1233 TOYOYA AVENSIS GREY DUBLIN 26999 0 0
11-D-1234 TOYOTA AVENSIS BLACK DUBLIN 26999 0 0
01-D-31 OPEL CORSA BLACK CORK 1900 3 987
07-D-7845 FORD FOCUS BLACK LIMERICK 6500 1 55000
package cars;
import java.io.*;
public class Cars {
public static void main(String[] args) {
// Declare file reader and writer streams
FileReader frs = null;
FileWriter fws = null;
// Declare streamTokenizer
StreamTokenizer in = null;
// Declare a print stream
PrintWriter out = null;
// temp location of the car
String location = "";
// temp vars for avg computation
double limerickTotal = 0;
double corkTotal = 0;
double dublinTotal = 0;
int limerickCount = 0;
int dublinCount = 0;
int corkCount = 0;
// to hold the avg price of cars in various locations
double limerickAvg = 0;
double dublinAvg = 0;
double corkAvg = 0;
try {
// Create file input and output streams
frs = new FileReader("cars.txt");
fws = new FileWriter("projections.txt");
// Create a stream tokenizer wrapping file input stream
in = new StreamTokenizer(frs);
out = new PrintWriter(fws);
//range of white space characters
in.whitespaceChars('-', '-');
// Read past col headings.
in.nextToken(); //CARREG
in.nextToken(); //MAKE
in.nextToken(); //MODEL
in.nextToken(); //COLOUR
in.nextToken(); //LOCATION
in.nextToken(); //PRICE
in.nextToken(); //OWNERS
in.nextToken(); //MILEAGE
//read first token of first row (YEAR OF CAR - FROM CARREG)
in.nextToken();
// Process a record
while (in.ttype != StreamTokenizer.TT_EOF) {
//read second token (COUNTY OF CAR - FROM CARREG)
in.nextToken();
//read THIRD token (REG NUMBER OF CAR - FROM CARREG)
in.nextToken();
//read FOURTH token (MAKE OF CAR)
in.nextToken();
//read FIFTH token (MODEL OF CAR)
in.nextToken();
//read SIXTH token (COLOUR OF CAR)
in.nextToken();
//read SEVENTH token (LOCATION OF CAR)
in.nextToken();
if (in.ttype == StreamTokenizer.TT_WORD) {
location = in.sval;
} else {
System.out.println("Bad file structure");
}
//read EIGHT token (PRICE OF CAR)
in.nextToken();
if (in.ttype != StreamTokenizer.TT_NUMBER) {
System.out.println("Bad file structure");
}
if (location.equalsIgnoreCase("Limerick")) {
limerickCount++;
limerickTotal += in.nval;
} else if (location.equalsIgnoreCase("Dublin")) {
dublinCount++;
dublinTotal += in.nval;
} else {
corkCount++;
corkTotal += in.nval;
}
//read NINTH token (OWNERS OF CAR)
in.nextToken();
//read TENTH token (MILEAGE OF CAR)
in.nextToken();
//read next token of the next line in the file
in.nextToken();
}
} catch (FileNotFoundException ex) {
System.out.println("File not found: cars.txt");
} catch (IOException ex) {
System.out.println(ex.getMessage());
} finally {
//compute avg prices in the three locations
limerickAvg = limerickTotal / limerickCount;
dublinAvg = dublinTotal / dublinCount;
corkAvg = corkTotal / corkCount;
//print info to second file
out.println("Location \tAveragePrice");
out.println("Dublin " + "\t " + dublinAvg);
out.println("Cork " + "\t " + corkAvg);
out.println("Limerick " + "\t " + limerickAvg);
try {
if (frs != null) {
frs.close();
}
if (fws != null) {
fws.close();
}
} catch (IOException ex) {
System.out.println(ex);
}
}
}
}
