import java.awt.BorderLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.BorderFactory;import javax.swing.BoxLayout;import javax.swing.JButton;import javax.swing.JEditorPane;import javax.swing.JPanel;import javax.swing.WindowConstants;import javax.swing.border.BevelBorder;import javax.swing.border.LineBorder;public class MainUI extends javax.swing.JFrame implements ActionListener{	private JPanel jPanel;	private JButton jPolicySimButton;	private JPanel jInfoPanel;	private JButton jQuitButton;	private JButton jValueSimButton;	private JButton jMazeEditorButton;	private JEditorPane jInfoPane;	private JButton jQLSimButton;    private JButton jPSSimButton;	{		//Set Look & Feel		try {		    if(System.getProperty("os.name").indexOf("indows")!=-1)				javax.swing.UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");		} catch(Exception e) {			e.printStackTrace();		}	}		public static void main(String[] args) {		MainUI inst = new MainUI();		inst.setVisible(true);	}		public MainUI() {		super("RL-MDP:Simulation");		initGUI();	}		private void initGUI() {		try {			this.setSize(708, 484);			this.setLocationRelativeTo(null);			this.setUndecorated(true);			//this.setExtendedState(MAXIMIZED_BOTH);			setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);			{				jPanel = new JPanel();				this.getContentPane().add(jPanel, BorderLayout.CENTER);				jPanel.setLayout(null);				jPanel.setBackground(new java.awt.Color(235,241,238));				jPanel.setBorder(BorderFactory.createEtchedBorder(BevelBorder.LOWERED,null,null));				jPanel.setPreferredSize(new java.awt.Dimension(653, 466));                {                    jValueSimButton = new JButton();                    jPanel.add(jValueSimButton);                    jValueSimButton.setText("Value Iteration");                    jValueSimButton.setActionCommand("Value");                    jValueSimButton.setBounds(180, 80, 160, 30);                    jValueSimButton.addActionListener(this);                }				{					jPolicySimButton = new JButton();					jPanel.add(jPolicySimButton);					jPolicySimButton.setText("Policy Iteration");					jPolicySimButton.setBounds(368, 79, 160, 30);					jPolicySimButton.setActionCommand("Policy");					jPolicySimButton.addActionListener(this);				}				{					jQLSimButton = new JButton();					jPanel.add(jQLSimButton);					jQLSimButton.setText("Q Learning");					jQLSimButton.setBounds(180, 134, 160, 30);					jQLSimButton.setActionCommand("QSim");					jQLSimButton.addActionListener(this);				}				{					jPSSimButton = new JButton();					jPanel.add(jPSSimButton);					jPSSimButton.setText("P. Sweeping");					jPSSimButton.setBounds(368, 134, 160, 30);					jPSSimButton.setActionCommand("PSSim");					jPSSimButton.addActionListener(this);				}				{					jMazeEditorButton = new JButton();					jPanel.add(jMazeEditorButton);					jMazeEditorButton.setText("Create Maze");					jMazeEditorButton.setBounds(267, 32, 175, 30);					jMazeEditorButton.setActionCommand("Edit Maze");					jMazeEditorButton.addActionListener(this);				}				{					jQuitButton = new JButton();					jPanel.add(jQuitButton);					jQuitButton.setText("Enough of it !!");					jQuitButton.setBounds(267, 182, 175, 30);					jQuitButton.setActionCommand("Quit");					jQuitButton.addActionListener(this);				}				{					java.net.URL helpURL = MainUI.class.getResource("info.html");										jInfoPanel = new JPanel();					BoxLayout jInfoPanelLayout = new BoxLayout(jInfoPanel, javax.swing.BoxLayout.X_AXIS);					jInfoPanel.setLayout(jInfoPanelLayout);					jPanel.add(jInfoPanel);					jInfoPanel.setBounds(80, 250, 540, 150);					{						jInfoPane = new JEditorPane();						jInfoPanel.add(jInfoPane);						jInfoPane.setPage(helpURL);						jInfoPane.setBorder(new LineBorder(new java.awt.Color(0,0,0), 1, false));						jInfoPane.setBackground(new java.awt.Color(214,214,235));						jInfoPane.setAutoscrolls(false);					}				}			}		} catch (Exception e) {			e.printStackTrace();		}	}		public void actionPerformed(ActionEvent evt)	{		if (evt.getActionCommand().equals("Quit")) {			System.exit(0);		}		else if (evt.getActionCommand().equals("Edit Maze")) {			MazeEditor inst = new MazeEditor();			inst.setVisible(true);		}		else if (evt.getActionCommand().equals("Value")) {			AlgoSimulator inst = new AlgoSimulator(Algorithms.ValueIter);			inst.setVisible(true);		}		else if (evt.getActionCommand().equals("Policy")) {			AlgoSimulator inst = new AlgoSimulator(Algorithms.PolicyIter);			inst.setVisible(true);		}		else if (evt.getActionCommand().equals("QSim")) {			QLSimulator inst = new QLSimulator();			inst.setVisible(true);		}		else if (evt.getActionCommand().equals("PSSim")) {			PSSimulator inst = new PSSimulator();			inst.setVisible(true);		}	}}