Why are my validations not working from input file? - validation

Question

Full respect for your talents, please ignore how awful my code is. I am no natural and appreciate many of you will find my coding offensive!
I am wanting to create a GUI that 1 -chooses a text file, 2- displays the text to text panel and 3- validates the code ( i have a valid and invalid text file to demonstrate the validations work).
I can get points 1 and 2 to work but none of my validations are erroring when i select an invalid text file.
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.util.Scanner;
import java.awt.Color;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Image;
public class MainClass extends JFrame implements ActionListener {
#SuppressWarnings("deprecation")
public static void main(String[] args) {
// Creates new Window Frame with title and sets app to close on clicking cross
JFrame frame = new JFrame("SE2 - Graphics Example");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Creates JFrame as top level container in hierarchy
Container toplevelContainer = frame.getContentPane();
// Sets Grid Layout
GridLayout layout = new GridLayout(1, 0);
frame.setLayout(layout);
// Splits Panel into 2 halves and sets parameters for text panel and area
String str = "This is the area your imported text will be displayed";
JTextArea TextPanel = new JTextArea(str);
TextPanel.setBackground(Color.YELLOW);
TextPanel.setEditable(false);
TextPanel.setLineWrap(true);
TextPanel.setWrapStyleWord(true);
frame.add(TextPanel);
// calls graphicspanel class
GraphicsPanel grp = new GraphicsPanel();
toplevelContainer.add(grp);
grp.drawLine(Color.BLACK, 100, 100, 200, 100);
grp.drawLine(Color.BLACK, 200, 100, 200, 200);
grp.drawLine(Color.BLACK, 200, 200, 100, 200);
grp.drawLine(Color.BLACK, 100, 200, 100, 100);
// adds graphic panel to frame
frame.pack();
frame.setVisible(true);
// Creates new menubar within frame
JMenuBar menubar = new JMenuBar();
frame.setJMenuBar(menubar);
// Creates new menu with new jmenuitems for File (load,save,exit) with shortcuts
JMenu file = new JMenu("File");
menubar.add(file);
JMenuItem load = new JMenuItem("Load");
load.setIcon(new ImageIcon("Images/Looad.png"));
load.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_L, KeyEvent.SHIFT_MASK));
file.add(load);
// enables user to browse and choose files to load from filepath
load.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
JFileChooser chooser = new JFileChooser();
chooser.showOpenDialog(null);
File f = chooser.getSelectedFile();
String filename = f.getAbsolutePath();
try
{
// reads file and displays in text panel
FileReader reader = new FileReader(filename);
BufferedReader br = new BufferedReader(reader);
TextPanel.read(br, null);
br.close();
TextPanel.requestFocus();
File Fileobject = new File(filename);
#SuppressWarnings("resource")
Scanner fileReader = new Scanner(Fileobject);
fileReader = new Scanner(Fileobject);
while (fileReader.hasNext())
{
String line = fileReader.nextLine();
String[] splitArray = line.split(" ");
String command = splitArray[0];
if (command.contains ("MOVE"))
{
String MOVE = splitArray[0];
String x1 = splitArray[1];
String y1 = splitArray[2];
if (isNumeric(MOVE))
{
JOptionPane.showMessageDialog(null, "Command cannot be a number");
}
if(isLetter(x1))
{
JOptionPane.showMessageDialog(null, "Must be integer value");
}
if(isLetter(y1))
{
JOptionPane.showMessageDialog(null, "Must be integer value");
}
else if (command.contains("LINE"))
{
String LINE = splitArray[0];
String x2 = splitArray[1];
String y2 = splitArray[2];
if (isNumeric(LINE))
{
JOptionPane.showMessageDialog(null, "Command cannot be a number");
}
if(isLetter(x2))
{
JOptionPane.showMessageDialog(null, "Must be integer value");
}
if(isLetter(y2))
{
JOptionPane.showMessageDialog(null, "Must be integer value");
}
else if(command.contains("CIRCLE"))
{
String CIRCLE =splitArray[0];
int r = Integer.parseInt(splitArray[1]);
if(r < 0)
{
JOptionPane.showMessageDialog(null, "Must be positive number");
}
JOptionPane.showMessageDialog(null, "Must be integer value");
}
else if (command.contains("SOLID_CIRCLE"))
{
String SOLID_CIRCLE = splitArray[0];
try {
int r = Integer.parseInt(splitArray[1]);
if(r<0)
{
JOptionPane.showMessageDialog(null, "Must be positive number");
}
}
catch(NumberFormatException e) {
}
JOptionPane.showMessageDialog(null, "Must be integer value");
}
else if (command.contains("CLEAR"))
{
JOptionPane.showMessageDialog(null, "Commands have been cleared");
}
else if (command.contains("COLOUR"))
{
String Colour = splitArray[0];
int red = Integer.parseInt(splitArray[1]);
int green = Integer.parseInt(splitArray[2]);
int blue = Integer.parseInt(splitArray[3]);
if(red>255)
if(red<0)
if (green>255)
if(green<0)
if(blue>255)
if(blue<0)
{
JOptionPane.showMessageDialog(null, "Colour values must range between 0 and 255");
}
else if (command.contains("TEXT"))
{
String text = null;
if(isNumeric(text))
{
JOptionPane.showMessageDialog(null, "Text must not contain numbers");
}
if (!contains(""))
{
JOptionPane.showMessageDialog(null, "Text must contain double quotation marks");
}
}
}
}
}
}}
//confirm checks are complete for user
catch (Exception e) {
JOptionPane.showMessageDialog(null, "Error Check Complete");
}
}
private boolean contains(String string) {
// TODO Auto-generated method stub
return false;
}
private boolean isLetter(String string) {
// TODO Auto-generated method stub
return false;
}
private boolean isNumeric(String command) {
// TODO Auto-generated method stub
return false;
}
});
// adds image icon and shortcut keys to JMenuItems
JMenuItem save = new JMenuItem("Save");
save.setIcon(new ImageIcon("Images/Saveas.png"));
save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, KeyEvent.SHIFT_MASK));
// Attempt at requirement 4 to add functionality to save JMENUITEM
// save.addActionListener(new ActionListener() {
// public void actionPerformed(ActionEvent ae) {
// JFileChooser fc = new JFileChooser();
// fc.showSaveDialog(this);
// encoder.encode(image);
// byte[] jpgData = bos.toByteArray();
// FileOutputStream fos = new FileOutputStream(fc.getSelectedFile()+".jpeg");
// fos.write(jpgData);
// fos.close();
file.add(save);
JMenuItem exit = new JMenuItem("Exit");
exit.setIcon(new ImageIcon("Images/Exiit.png"));
exit.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_E, KeyEvent.SHIFT_MASK));
file.add(exit);
JMenu help = new JMenu("Help");
menubar.add(help);
JMenuItem about = new JMenuItem("About");
about.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, KeyEvent.SHIFT_MASK));
help.add(about);
// Adds Action listener to display dialog box with app description
about.addActionListener(new ActionListener() {
#Override
public void actionPerformed(ActionEvent arg0) {
JOptionPane.showMessageDialog(about,
"This Application allows you to import, save and display graphical content from a file containing a set of instructions.",
"About", JOptionPane.INFORMATION_MESSAGE);
}
});
frame.setVisible(true);
class exitaction implements ActionListener {
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
}
exit.addActionListener(new exitaction());
}
protected static int isEmpty() {
// TODO Auto-generated method stub
return 0;
}
#Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
}
}