writing , reading , bar chart.

[tommie20]

Hi guys,

I'm trying to make a program that is capable of writing certain data ( own input ) to a "yourname" file. ( only numbers). The next step is that i have to read it again and put it in a bar chart.

I'm already stuck with the first step, anyone has some suggestions ?

Thanks,

Tom

[tommie20]

Ok,

I now have a button that puts all the numbers that i want to add in an array.
Does anyone know how to write this array to a file?

greets,

Tom

[tommie20]

I can write data to a file with the following code:

class KnopHandler1 implements ActionListener
	{
		public void actionPerformed(ActionEvent a)
	{
			String settoernooi = tekstvak1.getText();
			String setaanmeldingen = tekstvak2.getText();
			Double setDoubleaanmeldingen = new Double (setaanmeldingen);
			ArrayShuttle[count] = new Badminton(setDoubleaanmeldingen, settoernooi);
			count++;
			
		
			JOptionPane.showMessageDialog(null, "Toernooi Toegevoegd");
				
		}
	}

Following step is to write a file of this:

class KnopHandler2 implements ActionListener
		{
			public void actionPerformed(ActionEvent a)
			{
				try
				{
					BufferedWriter uit = new BufferedWriter(new FileWriter(tekstvak3.getText()));
					
					for (int i = 0; i<count;i++)
					{
						uit.write("" + ArrayShuttle[i].gettoernooi());
						uit.newLine();
						uit.write("" + ArrayShuttle[i].getaanmeldingen());
						uit.newLine();
					
					}
					
				uit.close();
				
				}
				catch( IOException d )  
				{
				System.out.println("Fout bij maken");
				d.printStackTrace();
				
				
			}
				tekstvak3.setText("");

When i search the file in my workspace folder it says on line 1 : null, and on line 2 : 0,0

suggestions anyone?

Tom