[dushi]

Hello,

can someone please check my code. i'm gettng this error msg:
error reading filejava.util.No SuchElementException

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.Dimension;
import java.util.*;
import java.io.*;
import java.awt.Font;


 class FileStudent  extends JFrame implements  ActionListener{
	
	private BufferedReader bufferedReader;
	private FileReader fileReader;
	private JFileChooser fileChooser;
	private Button searchButton, gemButton, studvolButton;
	private JTextField fileField;
//	 private path;
  // private file selectedFile;
	
	public static void main (String []args){
		FileStudent frame = new FileStudent();
		frame.setSize(600, 150);
		frame.createGUI();
		frame.show();
	}
	
	private void createGUI(){
		setDefaultCloseOperation (EXIT_ON_CLOSE);
		Container window = getContentPane();
		window.setLayout(new FlowLayout());
		
	
		
		//searchButton = new Button ("Search for file");
		//window.add(searchButton);
		//searchButton.addActionListener(this);
		
	
		
		gemButton = new Button ("Gemiddelde Vakken");
		window.add(gemButton);
		gemButton.addActionListener(this);
		
	
		
		studvolButton = new Button ("Student met voldoende");
		window.add(studvolButton);
		studvolButton.addActionListener(this);
		
		fileField = new JTextField (40);
		window.add(fileField);
		
	
	}
	
	public void actionPerformed(ActionEvent e){
		
		int resultaat;
		if (e.getSource()==gemButton){
			
		fileChooser  = new JFileChooser();
		 resultaat = fileChooser.showOpenDialog(this);
		
		if(resultaat == JFileChooser.APPROVE_OPTION)
			{
			
			File selFile = fileChooser.getSelectedFile();
				String path = selFile.getPath();
				fileField.setText(
					selFile.getAbsolutePath());				
		
			try {
				fileReader   = new FileReader (path);
				bufferedReader = new BufferedReader(fileReader);
			//	fileReader   = new FileReader (path);
				//inFile = new BufferedReader(fileReader);
					String file;
					file = bufferedReader.readLine();
					
			if (file != null){
				double gem, gem2;
				double tot, tot2;
				double res, res2;
				double ant, ant2;
				
					gem=0.0; gem2 =0.0;
					tot=0.0; tot2 =0.0;
					res=0.0; res2 =0.0;
					ant=0.0; ant2=0.0;
					
			 while (file != null){
			 
				 //Token
						
				StringTokenizer	tokens = new StringTokenizer(file, ",");
						String studentnumInFile = tokens.nextToken();
						String naamInFile = tokens.nextToken();
						String vaknaamInFile = tokens.nextToken();
						String resultInFile = tokens.nextToken();
						
				if ( vaknaamInFile.equals("JAVA1")){
							//found = true;
							//fileArea.setText(tokens.nextToken());
							
							res = Double.parseDouble(resultInFile);
							tot = tot + res;
							ant += 1;
				}
							
				if ( vaknaamInFile.equals("JAVA2")){
							 res2 = Double.parseDouble(resultInFile);
							 tot2 = tot2 + res2;
						   	 ant2 += 1;
				}			
							file = bufferedReader.readLine();
				
			 }
					  gem = tot / ant;
					  gem2= tot2/ant2;	
		
			  JOptionPane.showMessageDialog(null, "Gemiddelde java1 is " + gem + "\n" + "Gemiddelde java2 is " + gem2);

						bufferedReader.close();
				 }
			  else
					JOptionPane.showMessageDialog(null,"File is leeg");

			}
			
			catch (Exception ae){
				JOptionPane.showMessageDialog(null,"Error reading file"+ ae.toString());
			}
			}
			}
		//	public void actionPerformed(ActionEvent e){
		else	 if (e.getSource()== studvolButton){
				fileChooser = new JFileChooser();
				resultaat = fileChooser.showOpenDialog(this);
				
				if(resultaat==JFileChooser.APPROVE_OPTION){
					
			File selFile = fileChooser.getSelectedFile();
				String path = selFile.getPath();
				
				
				try{
		fileReader = new FileReader(path);
		bufferedReader  = new BufferedReader(fileReader);

		String file;
		file = bufferedReader.readLine();	
			
			if(file != null)
		 {
			 String studvak1="";
			 String studvak2="";
			 String nl = "\n";
			 
			 while(file != null)
				{
					// JOptionPane.showMessageDialog(null, fl);
				   StringTokenizer tokens = new StringTokenizer( file, " ,");

					String studentnumInFile = tokens.nextToken();
					String nameInFile = tokens.nextToken();
					String vaknaamInFile = tokens.nextToken();
					String resultInFile = tokens.nextToken();
					double res = Double.parseDouble(resultInFile);
					
					 if((vaknaamInFile.equals("JAVA1")) && (res >= 5.5))
					{
					   studvak1=studvak1 += nameInFile +nl;
					}

					if((vaknaamInFile.equals("JAVA2")) && (res >= 5.5))
					{
					   studvak2=studvak2 += nameInFile + nl;
					}

					file = bufferedReader.readLine();
				}
				JOptionPane.showMessageDialog(null, "Wie Java 1 heeft gehaald:" +"\n"+studvak1 +"\n"+ "Wie Java 2 heeft gehaald:" +"\n"+studvak2 );

				  bufferedReader.close();	
					
						}
			else
			  JOptionPane.showMessageDialog(null,"Geen");
			
			}
	catch (Exception ae)
		{
		   JOptionPane.showMessageDialog(null,"Error");
			
			
			
	}
			
				}}}	}	
 
			
			

[pbl]

post your stack trace
an especially the line number where this happens

[Fuzzyness]

Possibly try this

JFileChooser chooser = new JFileChooser();
   		File infile = null;
   		FileReader reader = null;
if (chooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION)
   		{
   			infile = chooser.getSelectedFile();
   			reader = new FileReader(infile);
   		}
Scanner input = new Scanner(infile);
while (input.hasNextLine())
{
//code goes here
}

That is how i do all of my loading and always works for me.