GUI doesnt pop-up when program runs

Question

cant seem to find why my GUI doesnt show up when i run my program?....i believe i am missing one statement or two but i searched everywhere...and tried a few methods in the Container class, and found nothing....thanks in advance
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.io.*;
public class GUI extends JFrame implements ActionListener
ReadLevel read;
private JLabel input = new JLabel ("Location of Input File:");
private JLabel output = new JLabel ("Location of Output File:");
private JLabel size = new JLabel ("Minimum word size:");
private JLabel freq = new JLabel ("Minimum word frequency:");
private JLabel total = new JLabel ("Total number of words:");
private JLabel totalSize = new JLabel ("Total number meeting size requirement:");
private JLabel totalFreq = new JLabel ("Total number meeting frequency requirement:");
private JLabel avgSize = new JLabel ("Average size meeting size requirement:");
private JLabel avgFreq = new JLabel ("Average frequency meeting frequency requirement:");
private JLabel most = new JLabel ("Three most frequent words meeting all requirements:");
private JTextField in = new JTextField(10);
private JTextField out = new JTextField(10);
private JTextField sz = new JTextField(5);
private JTextField fq = new JTextField(5);
private JTextField tt = new JTextField(10);
private JTextField ts = new JTextField(5);
private JTextField tf = new JTextField(5);
private JTextField as = new JTextField(5);
private JTextField af = new JTextField(5);
private JTextField m1 = new JTextField(10);
private JTextField m2 = new JTextField(10);
private JTextField m3 = new JTextField(10);
private JButton submit = new JButton("Submit");
private JButton clear = new JButton("Clear");
private JButton printInput = new JButton("Print InPut");
private JButton printOutput = new JButton("Print Output");
private ReadLevel myReadLevel;
public GUI()
super("Reading Levels");
read = new ReadLevel(in.getText(), sz.getText(), fq.getText()); <-----this gives me an compiler error...and i dont know why..seems correct and in the correct place, isnt it?
submit.addActionListener(this);
clear.addActionListener(this);
printInput.addActionListener(this);
printOutput.addActionListener(this);
JPanel row1 = new JPanel();
row1.setLayout(new BoxLayout(row1, BoxLayout.X_AXIS));
row1.add(input);
row1.add(in);
JPanel row2=new JPanel();
row2.setLayout(new BoxLayout(row2, BoxLayout.X_AXIS));
row2.add(output);
row2.add(out);
JPanel row3=new JPanel();
row3.setLayout(new BoxLayout(row3, BoxLayout.X_AXIS));
row3.add(size);
row3.add(sz);
JPanel row4=new JPanel();
row4.setLayout(new BoxLayout(row4, BoxLayout.X_AXIS));
row4.add(freq);
row4.add(fq);
JPanel row5=new JPanel();
row5.setLayout(new BoxLayout(row5, BoxLayout.X_AXIS));
row5.add(total);
row5.add(tt);
JPanel row6=new JPanel();
row6.setLayout(new BoxLayout(row6, BoxLayout.X_AXIS));
row6.add(totalSize);
row6.add(ts);
JPanel row7=new JPanel();
row7.setLayout(new BoxLayout(row7, BoxLayout.X_AXIS));
row7.add(totalFreq);
row7.add(tf);
JPanel row8=new JPanel();
row8.setLayout(new BoxLayout(row8, BoxLayout.X_AXIS));
row8.add(avgSize);
row8.add(as);
JPanel row9=new JPanel();
row9.setLayout(new BoxLayout(row9, BoxLayout.X_AXIS));
row9.add(avgFreq);
row9.add(af);
JPanel row10=new JPanel();
row10.setLayout(new BoxLayout(row10, BoxLayout.X_AXIS));
row10.add(most);
JPanel row11=new JPanel();
row11.setLayout(new BoxLayout(row11, BoxLayout.Y_AXIS));
row11.add(m1);
row11.add(m2);
row11.add(m3);
JPanel row12=new JPanel();
row12.setLayout(new BoxLayout(row12, BoxLayout.X_AXIS));
row12.add(submit);
row12.add(clear);
row12.add(printInput);
row12.add(printOutput);
Container myContent = getContentPane();
myContent.setLayout (new BoxLayout (myContent, BoxLayout.Y_AXIS));
myContent.add (row1);
myContent.add (row2);
myContent.add (row3);
myContent.add (row4);
myContent.add (row5);
myContent.add (row6);
myContent.add (row7);
myContent.add (row8);
myContent.add (row9);
myContent.add (row10);
myContent.add (row11);
myContent.add (row12);
setContentPane(myContent);
public void actionPerformed(ActionEvent ev)
read(in.getText(), sz.getText(), fq.getText()); <----this gives me errors
if(ev.getSource() == submit);
read(in.getText(), sz.getText(), fq.getText()); <----this too
if(ev.getSource() == clear);
in.setText("");
out.setText("");
sz.setText("");
fq.setText("");
tt.setText("");
ts.setText("");
tf.setText("");
as.setText("");
af.setText("");
m1.setText("");
m2.setText("");
m3.setText("");
if(ev.getSource() == printInput);
if(ev.getSource() == printOutput);
read.asString(); <---and this
public class Driver
public static void main (String[] args)
GUI myGUI = new GUI();
myGUI.setDefaultCloseOperation(myGUI.EXIT_ON_CLOSE);
myGUI.pack();
myGUI.show();
myGUI.toFront();
myGUI.setVisible(true);

Answer 1

import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.io.*;
public class GUI extends JFrame implements ActionListener
ReadLevel read;
private JLabel input = new JLabel ("Location of Input File:");
private JLabel output = new JLabel ("Location of Output File:");
private JLabel size = new JLabel ("Minimum word size:");
private JLabel freq = new JLabel ("Minimum word frequency:");
private JLabel total = new JLabel ("Total number of words:");
private JLabel totalSize = new JLabel ("Total number meeting size requirement:");
private JLabel totalFreq = new JLabel ("Total number meeting frequency requirement:");
private JLabel avgSize = new JLabel ("Average size meeting size requirement:");
private JLabel avgFreq = new JLabel ("Average frequency meeting frequency requirement:");
private JLabel most = new JLabel ("Three most frequent words meeting all requirements:");
private JTextField in = new JTextField(10);
private JTextField out = new JTextField(10);
private JTextField sz = new JTextField(5);
private JTextField fq = new JTextField(5);
private JTextField tt = new JTextField(10);
private JTextField ts = new JTextField(5);
private JTextField tf = new JTextField(5);
private JTextField as = new JTextField(5);
private JTextField af = new JTextField(5);
private JTextField m1 = new JTextField(10);
private JTextField m2 = new JTextField(10);
private JTextField m3 = new JTextField(10);
private JButton submit = new JButton("Submit");
private JButton clear = new JButton("Clear");
private JButton printInput = new JButton("Print InPut");
private JButton printOutput = new JButton("Print Output");
private ReadLevel myReadLevel;
public GUI()
super("Reading Levels");
read = new ReadLevel(in.getText(), Integer.parseInt(sz.getText()), Integer.parseInt(fq.getText())); //<-----fix it
submit.addActionListener(this);
clear.addActionListener(this);
printInput.addActionListener(this);
printOutput.addActionListener(this);
JPanel row1 = new JPanel();
row1.setLayout(new BoxLayout(row1, BoxLayout.X_AXIS));
row1.add(input);
row1.add(in);
JPanel row2=new JPanel();
row2.setLayout(new BoxLayout(row2, BoxLayout.X_AXIS));
row2.add(output);
row2.add(out);
JPanel row3=new JPanel();
row3.setLayout(new BoxLayout(row3, BoxLayout.X_AXIS));
row3.add(size);
row3.add(sz);
JPanel row4=new JPanel();
row4.setLayout(new BoxLayout(row4, BoxLayout.X_AXIS));
row4.add(freq);
row4.add(fq);
JPanel row5=new JPanel();
row5.setLayout(new BoxLayout(row5, BoxLayout.X_AXIS));
row5.add(total);
row5.add(tt);
JPanel row6=new JPanel();
row6.setLayout(new BoxLayout(row6, BoxLayout.X_AXIS));
row6.add(totalSize);
row6.add(ts);
JPanel row7=new JPanel();
row7.setLayout(new BoxLayout(row7, BoxLayout.X_AXIS));
row7.add(totalFreq);
row7.add(tf);
JPanel row8=new JPanel();
row8.setLayout(new BoxLayout(row8, BoxLayout.X_AXIS));
row8.add(avgSize);
row8.add(as);
JPanel row9=new JPanel();
row9.setLayout(new BoxLayout(row9, BoxLayout.X_AXIS));
row9.add(avgFreq);
row9.add(af);
JPanel row10=new JPanel();
row10.setLayout(new BoxLayout(row10, BoxLayout.X_AXIS));
row10.add(most);
JPanel row11=new JPanel();
row11.setLayout(new BoxLayout(row11, BoxLayout.Y_AXIS));
row11.add(m1);
row11.add(m2);
row11.add(m3);
JPanel row12=new JPanel();
row12.setLayout(new BoxLayout(row12, BoxLayout.X_AXIS));
row12.add(submit);
row12.add(clear);
row12.add(printInput);
row12.add(printOutput);
Container myContent = getContentPane();
myContent.setLayout (new BoxLayout (myContent, BoxLayout.Y_AXIS));
myContent.add (row1);
myContent.add (row2);
myContent.add (row3);
myContent.add (row4);
myContent.add (row5);
myContent.add (row6);
myContent.add (row7);
myContent.add (row8);
myContent.add (row9);
myContent.add (row10);
myContent.add (row11);
myContent.add (row12);
setContentPane(myContent);
public void actionPerformed(ActionEvent ev)
read(in.getText(), sz.getText(), fq.getText()); //<----where the 'read' function come from??
if(ev.getSource() == submit);
read(in.getText(), sz.getText(), fq.getText()); //<----There is no 'read' function in your code
if(ev.getSource() == clear);
in.setText("");
out.setText("");
sz.setText("");
fq.setText("");
tt.setText("");
ts.setText("");
tf.setText("");
as.setText("");
af.setText("");
m1.setText("");
m2.setText("");
m3.setText("");
if(ev.getSource() == printInput);
if(ev.getSource() == printOutput);
read.asString(); //<---Where does the 'asString' function come from???!?
}