Array weitergeben

[ghost]

Ich hab unten stehendes Programm. Wie bring ich die Eingaben ( Username, Password, usw. ) in die andere Klasse?

public class Conn extends JFrame{
	ActionListener AL = new ActionListener(){
		public void actionPerformed(ActionEvent e){
				Connection conn = null;
	try{
	Class.forName("org.gjt.mm.mysql.Driver");
	}
	catch(ClassNotFoundException cnfs)
	{
	System.out.println("Treiber konnte nicht geladen werden");
	}
    try{
   	conn = DriverManager.getConnection("jdbc:mysql://"+ host + ":" + port + "/" + user, password);
	} ...

JLabel lab2 = new JLabel();
//lab2.setLayout(gb);
lab2.setOpaque(true);
lab2.setForeground(Color.black);
lab2.setFont(new Font("Helvetica", Font.PLAIN, 18));
lab2.setText("Username: ");
pan2.add(lab2, new GridBagConstraints(0,0,1,1,1.0,1.0,
GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0), 1, 1));
//pan2.add(lab2);
		
JTextField tfuser = new JTextField();
tfuser.setFont(new Font("Helvetica", Font.BOLD, 18));
String user = tfuser.getText();
pan2.add(tfuser, new GridBagConstraints(1,0,1,1,1.0,1.0,
GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));

 

[foobar]

Du mußt Settermethoden für den Benutzer und das Passwort erstellen.

public class Conn extends JFrame
{

   private void connect()
{
   ActionListener AL = new ActionListener(){
      public void actionPerformed(ActionEvent e){
            Connection conn = null;
   try{
   Class.forName("org.gjt.mm.mysql.Driver");
   }
   catch(ClassNotFoundException cnfs)
   {
   System.out.println("Treiber konnte nicht geladen werden");
   }
    try{
      conn = DriverManager.getConnection("jdbc:mysql://"+ host + ":" + port + "/" + user, password);
   } 
}

public void setUser(String user)
{
  this.user = user;
}

 

[ghost]

Ich hab das mit den Settermethoden versucht jedoch krieg ich immer eine Fehlermeldung ( z.B.: illegal start of Expression, this geht nicht... ). Wie muß ich die Klasse umstrukturieren?

public class Conn extends JFrame{
	
	public Conn(){
	    super("MySQL - Connector");
		
		JPanel pan = new JPanel();
		pan.setLayout(new GridBagLayout());
		pan.setBackground(Color.white);
				
		JLabel lab = new JLabel();
		//lab.setLayout(gb);
		lab.setOpaque(true);
		lab.setBackground(Color.blue);
		lab.setForeground(Color.red);
		lab.setFont(new Font("Helvetica", Font.BOLD, 24));
		lab.setText("MySQL - Connector Version 0.1");
		pan.add(lab, new GridBagConstraints(0,0,1,1,0.0,0.5,
			GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0,0,0,0), 1, 1));
		//pan.add(lab);
		
		JLabel lab5 = new JLabel();
		//lab.setLayout(gb);
		lab5.setOpaque(true);
		lab5.setBackground(Color.blue);
		lab5.setForeground(Color.black);
		lab5.setFont(new Font("Helvetica", Font.PLAIN, 21));
		lab5.setText("Schnittstelle zu MySQl - Datenbanken");
		pan.add(lab5, new GridBagConstraints(0,1,1,0,0.0,0.5,
			GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0,0,0,0),1,1));
			
		
		
		JPanel pan2 = new JPanel();
		pan2.setLayout(new GridBagLayout());
		//pan.setBackground(Color.green);
		
		JLabel lab2 = new JLabel();
		//lab2.setLayout(gb);
		lab2.setOpaque(true);
		lab2.setForeground(Color.black);
		lab2.setFont(new Font("Helvetica", Font.PLAIN, 18));
		lab2.setText("Username: ");
			pan2.add(lab2, new GridBagConstraints(0,0,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0), 1, 1));
		//pan2.add(lab2);
		
		JTextField tfuser = new JTextField();
		tfuser.setFont(new Font("Helvetica", Font.BOLD, 18));
		String user = tfuser.getText();
			pan2.add(tfuser, new GridBagConstraints(1,0,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
		
		JLabel lab3 = new JLabel();
		//lab3.setLayout(gb);
		lab3.setOpaque(true);
		lab3.setForeground(Color.black);
		lab3.setFont(new Font("Helvetica", Font.PLAIN, 18));
		lab3.setText("Passwort: ");
		pan2.add(lab3, new GridBagConstraints(0,1,1,1,1.0,1.0,
			GridBagConstraints.NORTHWEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
		//pan2.add(lab3);
		
		JPasswordField tfpasswd = new JPasswordField();
		tfpasswd.setFont(new Font("Helvetica", Font.BOLD, 18));
		String password = tfpasswd.getText();
			pan2.add(tfpasswd, new GridBagConstraints(1,1,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
		
		JLabel lab4 = new JLabel();
		lab4.setOpaque(true);
		lab4.setText("DB - Host: ");
		lab4.setFont(new Font("Helvetica", Font.PLAIN, 18));
			pan2.add(lab4, new GridBagConstraints(0,2,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0), 1,1));
			
		JTextField tfdbHost = new JTextField();
		tfdbHost.setFont(new Font("Helvetica", Font.BOLD, 18));
		String host = tfdbHost.getText();
			pan2.add(tfdbHost, new GridBagConstraints(1,2,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			
		JLabel lab6 = new JLabel();
		lab6.setOpaque(true);
		lab6.setText("DB - Port: ");
		lab6.setFont(new Font("Helvetica", Font.PLAIN, 18));
			pan2.add(lab6, new GridBagConstraints(0,3,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
		
		JTextField dbPort = new JTextField();
		dbPort.setFont(new Font("Helvetica", Font.BOLD, 18));
		String port = dbPort.getText();
			pan2.add(dbPort, new GridBagConstraints(1,3,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			
		
		JButton but = new JButton();
		but.setText("Verbinden");
		but.setBackground(Color.green);
		but.addActionListener(AL);
			pan2.add(but, new GridBagConstraints(0,4,1,1,1.0,1.0,
			GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			
		JButton but1 = new JButton();
		but1.setText("Verbindung beenden");
		but1.setBackground(Color.red);
		//ActionListener but = new AL();
			pan2.add(but1, new GridBagConstraints(1,4,1,1,1.0,1.0,
			GridBagConstraints.CENTER, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			
		JPanel pan3 = new JPanel();
		pan3.setLayout(new GridBagLayout());
			JTextField meld = new JTextField();
			meld.setFont(new Font("Helvetica", Font.BOLD, 18));
			pan3.add(meld, new GridBagConstraints(0,0,1,1,1.0,1.0,
			GridBagConstraints.WEST, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			
					
			this.getContentPane().setLayout(new GridBagLayout());
			this.getContentPane().add(pan, new GridBagConstraints(0,0,1,1,1.0,1.0, 
				GridBagConstraints.NORTH, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			this.getContentPane().add(pan2, new GridBagConstraints(0,1,1,1,1.0,1.0,
				GridBagConstraints.NORTH, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
			this.getContentPane().add(pan3, new GridBagConstraints(0,2,1,1,1.0,1.0, 
				GridBagConstraints.NORTH, GridBagConstraints.BOTH, new Insets(0,0,0,0),1,1));
				}
				
		
		ActionListener AL = new ActionListener(){
			public void actionPerformed(ActionEvent e){
				Connection conn =  null;
				try{
					Class.forName("org.gjt.mm.mysql.Driver");
				}
				catch(ClassNotFoundException cnfs)
				{
				System.out.println("Treiber konnte nicht geladen werden");
		}
		try{
			conn = DriverManager.getConnection("jdbc:mysql://"+ host + ":" + port + "/" + user, password);}
				catch(SQLException sqle){
					System.out.println("Verbindung fehlgeschlagen: " + sqle.getMessage());}
				
		public void setUser (String user)
		{
			this.user = user;
		}


				};
};
}