this is a school assignment
i keep gettng a runtime error that i frankly have no idea how to fix. my output is as follows:
[Session started at 2009-04-13 07:01:57 -0400.]
Competitors
****************
****************
(Option 1) - Create new Sport Stacker
Exception in thread "main" java.util.NoSuchElementException: No line found
at java.util.Scanner.nextLine(Scanner.java:1471)
at Project8Driver.menuSwitch(Project8Driver.java:6
at Project8Driver.main(Project8Driver.java:54)
The Debugger has exited with status 1.The Debugger has exited with status 1.
i have a heiracrchy of classes as follows: competitor (super parent class)-->speller, sportstacker, trackathlete (trackathlete has two subclasses runner and thrower
the code that generates the error is:
Code:
import java.util.Scanner;
import java.io.BufferedReader;
import java.io.*;
public class Project8Driver
{
public static void main( String[] args ) throws IOException
{
/*String fileName = ""; //contains the file name of the input file
boolean event = true;
while (event == true){
//checks if the args[] array contains anything
if (args.length > 0)
{
String file = args[0];
fileName = file;
event = false;
}
else
{
System.out.println("Please input a file name as a command-line arguement.");
}
}*/
//create file scanner
Scanner fileScan = null;
fileScan = new Scanner(new BufferedReader( new FileReader( "P8input.txt" )) );
//scanner for each line
//Scanner line = new Scanner( fileScan.nextLine() );
//create competitor array
Competitor comp[] = new Competitor[20];
//initialize input choice
int inputChoice = 0;
//go through input as long as inputs are available
while( fileScan.hasNext() && inputChoice != 6)
{
Scanner line = new Scanner( fileScan.nextLine() );
inputChoice = line.nextInt();
menuSwitch( inputChoice, comp, line);
}
}
/*********************************************************************************
switch statement that handles competition inputs
*********************************************************************************/
public static void menuSwitch( int choice, Competitor comp[], Scanner line)
{
switch( choice )
{
//Create new SportStacker
case 1:
System.out.println("(Option 1) - Create new Sport Stacker");
String name = line.nextLine();
String birthplace = line.nextLine();
String gender = line.nextLine();
String age = line.nextLine();
int age1 = Integer.parseInt(age);
String bestCompFinish = line.nextLine();
int bestCompFinish1 = Integer.parseInt(bestCompFinish);
String numTimesRecorded = line.nextLine();
int numTimesRecorded1 = Integer.parseInt(numTimesRecorded);
String ID = line.nextLine();
int ID1 = Integer.parseInt(ID);
String regionNumber = line.nextLine();
int regionNumber1 = Integer.parseInt(regionNumber);
String three33 = line.nextLine();
boolean event333;
if (three33.equalsIgnoreCase("yes"))
event333 = true;
else
event333 = false;
String three63 = line.nextLine();
boolean event363;
if (three63.equalsIgnoreCase("no"))
event363 = true;
else
event363 = false;
comp[0] = new SportStacker(name, birthplace, gender, age1, bestCompFinish1, numTimesRecorded1, ID1, event333, event363, regionNumber1 );
break;
//Create new Speller
case 2:
System.out.println("(Option 1) - Create new Speller");
name = line.nextLine();
birthplace = line.nextLine();
gender = line.nextLine();
age = line.nextLine();
age1 = Integer.parseInt(age);
bestCompFinish = line.nextLine();
bestCompFinish1 = Integer.parseInt(bestCompFinish);
regionNumber = line.nextLine();
regionNumber1 = Integer.parseInt(regionNumber);
String school = line.nextLine();
comp[1] = new Speller(name, birthplace, gender, age1, bestCompFinish1, school, regionNumber1);
break;
//Create new Thrower
case 3:
System.out.println("(Option 1) - Create new Thrower");
name = line.nextLine();
birthplace = line.nextLine();
gender = line.nextLine();
age = line.nextLine();
age1 = Integer.parseInt(age);
bestCompFinish = line.nextLine();
bestCompFinish1 = Integer.parseInt(bestCompFinish);
String ageGroup = line.nextLine();
String bibNumber = line.nextLine();
int bibNumber1 = Integer.parseInt(bibNumber);
String bestEvent = line.nextLine();
String bestThrow = line.nextLine();
double bestThrow1 = Double.parseDouble(bestThrow);
comp[2] = new Thrower(name, birthplace, gender, age1, bestCompFinish1, ageGroup, bibNumber1, bestEvent, bestThrow1);
break;
//Create new Runner
case 4:
System.out.println("(Option 1) - Create new Runner");
name = line.nextLine();
birthplace = line.nextLine();
gender = line.nextLine();
age = line.nextLine();
age1 = Integer.parseInt(age);
bestCompFinish = line.nextLine();
bestCompFinish1 = Integer.parseInt(bestCompFinish);
ageGroup = line.nextLine();
bibNumber = line.nextLine();
bibNumber1 = Integer.parseInt(bibNumber);
String distance = line.nextLine();
int distance1 = Integer.parseInt(distance);
String bestTime = line.nextLine();
comp[3] = new Runner(name, birthplace, gender, age1, bestCompFinish1, ageGroup, bibNumber1, distance1, bestTime);
break;
//Print Competitor Information
case 5:
System.out.println("Competitors\n****************");
try {
for (int i = 0; i < 4; i++){
comp[i].String();
System.out.println();
}
}
catch (Exception e) {}
System.out.println("****************\n");
break;
case 6:
System.out.println("Goodbye");
break;
//if invalid choice
default:
System.out.println("\nSorry, invalid choice");
}
}
}
the input file (with comments) that this comes from looks like this:
Code:
5 //print out competitors info
1 //add sport stacker
John Smith //get competitor name
New York, NY //get competitor birthplace
Male //get competitor gender
16 //get competitor age
4 //get competitor best competition finish
3 //get sport stacker number of times recorded
638 //get sport stacker ID
12 //get sport stacker region number
yes //get sport stacker T/F for event 3-3-3
no //get sport stacker T/F for event 3-6-3
2 //add speller
Pat Jones //get competitor name
Los Angeles, CA //get competitor birthplace
Female //get competitor gender
14 //get competitor age
33 //get competitor best competition finish
19 //get speller region number
Washington High School //get speller school
3 //add thrower
Gina Toms //get competitor name
Dallas, TX //get competitor birthplace
Female //get competitor gender
22 //get competitor age
1 //get competitor best competition finish
20 - 25 //get thrower age group
112 //get thrower bib number
Discus //get thrower best event
156.7 //get thrower best distance
4 //add runner
Logan James //get competitor name
Fort Worth, TX //get competitor birthplace
Male //get competitor gender
17 //get competitor age
3 //get competitor best competition finish
15 - 18 //get runner age group
334 //get runner bib number
1500 //get runner best distance
00:04:22 //get runner best time
5 //print out competitors info
6 //quit
Completely stumped by scanner error in java
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