Java gui program won't compile.

Question

The error I am getting in my compiler is missing return statement, then ill add some braces and get a class, interface, or enum expected error, and sometimes when i add some ill end up getting a reached the end without parcing error. Can someone look at this code and tell me what I need to do to make it compile, I am pretty sure it is just a brace thing, but I have run out of ideas:
here is the code:
public class Lab14 implements ActionListener
// Application variables
private JFrame myFrame;
private JTextField txtInput;
private JButton cmdRun;
private JButton cmdExit;
private JTextArea txaOutput;
private static Random rand = new Random();
private double trials;
* Schedule a job for the event-dispatching thread
* to create and show this application's GUI.
* @param args program arguments
public static void main(String[] args)
javax.swing.SwingUtilities.invokeLater(new Runnable()
public void run()
Lab14 myLab14 = new Lab14();
myLab14.createAndShowGUI();
* Create and show the graphical user interface.
private void createAndShowGUI()
Container myPane;
txtInput = new JTextField(10);
cmdRun = new JButton("Run");
cmdRun.addActionListener(this);
cmdExit = new JButton("Quit");
cmdExit.addActionListener(this);
txaOutput = new JTextArea(35, 40);
txaOutput.setEditable(false);
// Set up and show the application frame
myFrame = new JFrame("Lab14");
myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
myPane = myFrame.getContentPane();
myPane.setLayout(new FlowLayout());
myPane.add(new JLabel("Number of Trials"));
myPane.add(txtInput);
myPane.add(cmdRun);
myPane.add(cmdExit);
myPane.add(txaOutput);
myFrame.pack();
myFrame.setVisible(true);
txtInput.requestFocus();
* Enable user interaction.
* @param ae the specified action event
public void actionPerformed(ActionEvent ae)
String number;
String report;
int dotSum = 0;
int count = 0;
int freq = 0;
int prob = 0;
Object source = ae.getSource();
if (source.equals(cmdRun))
try
number = txtInput.getText();
trials = Double.parseDouble(number);
if (trials <= 0)
throw new Exception(
"The number of trials must be positive.");
else
while (count < trials)
dotSum = dotSum + rand.nextInt(6) + 1;
count++;
txaOutput.setText(
getReport(dotSum, freq, prob));
catch (NumberFormatException nfe)
txtInput.selectAll();
txtInput.requestFocus();
JOptionPane.showMessageDialog(
myFrame,
"The number of trials is not a number.",
"Number Format Error",
JOptionPane.ERROR_MESSAGE);
catch (Exception e)
txtInput.selectAll();
txtInput.requestFocus();
JOptionPane.showMessageDialog(
myFrame,
e.getMessage(),
"Number Format Error",
JOptionPane.ERROR_MESSAGE);
else
System.exit(0);
* Get the report for the specified dot sum, frequency,
* and probability. The output shows the results from
* rolling the dice a selected number of trials.
* @param dotSum the sum of the dots
* @param frequency the frequency of the dice
* @param probability the probability of rolling a specified amount
* @return the report
private String getReport(int dotSum,
int freq,
int prob)
int count;
int freq0;
int freq1;
int freq2;
int freq3;
int freq4;
int freq5;
int freq6;
int freq7;
int freq8;
int freq9;
int freq10;
double prob0;
double prob1;
double prob2;
double prob3;
double prob4;
double prob5;
double prob6;
double prob7;
double prob8;
double prob9;
double prob10;
String report;
int numDice = 2;
while (trials != 0)
Dice myDice = new Dice(numDice);
freq0 = 0;
freq1 = 0;
freq2 = 0;
freq3 = 0;
freq4 = 0;
freq5 = 0;
freq6 = 0;
freq7 = 0;
freq8 = 0;
freq9 = 0;
freq10 = 0;
for (count = 0; count < trials; count++)
switch (myDice.getDotSum())
case 2: freq0++;
break;
case 3: freq1++;
break;
case 4: freq2++;
break;
case 5: freq3++;
break;
case 6: freq4++;
break;
case 7: freq5++;
break;
case 8: freq6++;
break;
case 9: freq7++;
break;
case 10: freq8++;
break;
case 11: freq9++;
break;
case 12: freq10++;
prob0 = (double)freq0/(double)trials;
prob1 = (double)freq1/(double)trials;
prob2 = (double)freq2/(double)trials;
prob3 = (double)freq3/(double)trials;
prob4 = (double)freq4/(double)trials;
prob5 = (double)freq5/(double)trials;
prob6 = (double)freq6/(double)trials;
prob7 = (double)freq7/(double)trials;
prob8 = (double)freq8/(double)trials;
prob9 = (double)freq9/(double)trials;
prob10 = (double)freq10/(double)trials;
double freqSum = freq0 + freq1 + freq2 + freq3 + freq4 +
freq5 + freq6 + freq7 + freq8 + freq9 + freq10;
double probSum = prob0 + prob1 + prob2 + prob3 + prob4 +
prob5 + prob6 + prob7 + prob8 + prob9 + prob10;
return
String.format("%7s %9s %11s%n", "Dot Sum", "Frequency", "Probability")+
String.format("%7s %9s %11s%n", "-------", "---------", "-----------")+
String.format(" 2 %9d", freq0)+
String.format(" %11.3f%n", prob0)+
String.format(" 3 %9d", freq1)+
String.format(" %11.3f%n", prob1)+
String.format(" 4 %9d", freq2)+
String.format(" %11.3f%n", prob2)+
String.format(" 5 %9d", freq3)+
String.format(" %11.3f%n", prob3)+
String.format(" 6 %9d", freq4)+
String.format(" %11.3f%n", prob4)+
String.format(" 7 %9d", freq5)+
String.format(" %11.3f%n", prob5)+
String.format(" 8 %9d", freq6)+
String.format(" %11.3f%n", prob6)+
String.format(" 9 %9d", freq7)+
String.format(" %11.3f%n", prob7)+
String.format(" 10 %9d", freq8)+
String.format(" %11.3f%n", prob8)+
String.format(" 11 %9d", freq9)+
String.format(" %11.3f%n", prob9)+
String.format(" 12 %9d", freq10)+
String.format(" %11.3f%n", prob10)+
String.format("%7s %9s %11s%n", "-------", "---------", "-----------")+
String.format("%18d", freqSum)+
String.format("%13.3f%n", probSum);
}

Answer 1

border9 wrote:
yes, but i wrote the bottom part of the code a while ago before I did know what an array list was, so I figured it would be easier just to paste that rather than make new code.Sounds to me like you're the type who just throws code at a wall hoping some of it will stick.
You're not trying hard enough. Just posting your code here (and unformatted, to boot!) and saying "fix this for me" isn't going to cut it. This is not rent-a-coder.