The Program is for an investment firm

Question

PLEASE HELP!!!
This program will read in a file, then will do an average for the month or year or will print out a graph for the month or the year.
Here are the errors and the code:
InvestUnlimitedDH.java [67:1] No method found matching setData(int,int)
myUse.setData (21, c);
^
InvestUnlimitedDH.java [71:1] Undefined variable, class, or package name: myUse
myUse.setData (248, c);
^
InvestUnlimitedDH.java [71:1] Undefined variable, class, or package name: c
myUse.setData (248, c);
^
InvestUnlimitedDH.java [71:1] Invalid expression statement.
myUse.setData (248, c);
^
4 errors
import java.text.DecimalFormat;
import javax.swing.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.lang.*;
public class InvestUnlimitedDH
public static void main (String args [])
InvestGui myInvest = new InvestGui();
myInvest.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
class InvestGui extends JFrame implements ActionListener
JComboBox box;
JButton button1, button2;
JRadioButton rbutton1, rbutton2;
//JTextArea
//ListText
public void Invest()
Container c = getContentPane();
c.setLayout(new FlowLayout());
String []names = {"Disney", "Black and Decker", "OutBack Steakhouse"};
box = new JComboBox (names);
c.add(box);
button1 = new JButton ("Chart");
button2 = new JButton ("Average");
rbutton1 = new JRadioButton ("Month");
rbutton2 = new JRadioButton ("Year");
c.add(button1);
c.add(button2);
c.add(rbutton1);
c.add(rbutton2);
box.addActionListener(this);
button1.addActionListener(this);
button2.addActionListener(this);
setSize (200, 150);
setVisible (true);
public void actionPerformed (ActionEvent event)
if (event.getSource() == button2)
if(rbutton1.isSelected())
int c = box.getSelectedIndex();
UseDataClass myUse = new UseDataClass();
myUse.setData (21, c);
double y = myUse.getAvg();
else
myUse.setData (248, c);
else ;
class GraphicGui extends JFrame
public void paint (Graphics g)
super.paint(g);
//the outer rectangle
g.drawRect(30,30,478,350);
//the y value gridlines
g.drawLine(30,80,508,80);
g.drawString("60",15,85);
g.drawLine(30,130,508,130);
g.drawString("50",15,135);
g.drawLine(30,180,508,180);
g.drawString("40",15,185);
g.drawLine(30,230,508,230);
g.drawString("30",15,235);
g.drawLine(30,280,508,280);
g.drawString("20",15,285);;
g.drawLine(30,330,508,330);
g.drawString("10",15,335);
//the array holds the data in reverse order - most recent data at top
//we want to graph oldest to newest (left to right)
//so array is accessed from the end to zero, i allows us to place data
//left to right, while reading array from bottom up
int i = 0;
for (int count = data.length-1; count >=0; count--)
//x = position from left always starting 30 pixels out(1.9 is used to
//spread the data across window
int x = (int)(30+(i*1.9));
//380 is the location of the bottom line of rectangle, measure up from
//380 to determine location of where price should go (5.0 is used to //spread data correctly)
int y = (int)(380-(data[count]*5.0));
g.fillOval(x,y, 3, 3);
i++;
class DataClass
//dataList has three rows and 248 columns of doubles
private static double[][]dataList = new double [3] [100]
//these are the names of the files that hold the data
private static String[]fileNames = {"Disney", "Black and Decker", "OutBack Steakhouse"};
public static double setData()
try
for(int index = 0; index < fileNames.length; index++)
BufferedReader dat = new BufferedReader(new FileReader("a:\\" + fileNames[index]));
//inner loop will go through 248 times-the length of the file
for (int count = 0; count < 100; count ++)
//reads in a string from file and converts to a double and stores in the array
dataList[index][count] = Double.parseDouble(dat.readLine());
//close file before opening next file
dat.close();
catch(FileNotFoundException e)
System.out.println(e);
catch(IOException x)
System.out.println(x);
//called by method setData in UseDataClass
public static double[][]getData()
return dataList;
class UseDataClass
//t = the timeframe and comp = the company
int t, comp;
//x = the dataList
double[][]x = DataClass.getData();
private double [][]theData;
//gets the array from the DataClass
public void setData ()
theData = DataClass.getData(month, year)
company number t = time; comp = co;
setData (int time, int co);
findMin();
//this method finds out the smallest number in each array
void findMin()
//set minimum = to first value in array
double min = theData[comp][0];
for int count = 0; count < theData[comp].length; count ++)
if (theData[comp][count] < min)
//found new minimum
min = theData[index][count];
public double getAvg()
month = t * 21;
year = t * 248
return result;

Answer 1

Not exactly sure what is being accomplished, but your problem lies with the setData method (as stated by the trace).
When calling the method, you are doing myUse.setData(21, c) or myUse.setData(248, c). In both cases, you are passing two arguments (21 and c or 248 and c). However, the method setData() in the UseDataClass is not setup to accept any arguements. You need to do one of the following:
1) if you want to use the two numbers being passed, you need to change the method to be something like:
//up top:
myUse.setData(21,c);
//within the UseDataClass class:
setData(int a, int b)
//then do whatever you want to with the a and b...for instance:
t = a;
co = b;
//now t =21 and co = c
2) if you don't want to use any of the numbers being passed, then don't pass them:
//up top:
myUse.setData();
//you can just leave the setData() method alone since it is already setup to work without arguements
3) If you want to switch between the two methods (ie - sometimes pass arguements and sometimes not), you can create another method like the one in the first example.
here's what I mean:
class UseDataClass
public void setData()
//do what ever you want here without worrying about any values...
public void setData(int a, int b)
//now use the a and b values...
You could then do either:
myUse.setData();
or
myUse.setData(21, c);