Working of FocusGained method

[PreethiGowri]

Can somebody tell me how focusgained method works?
I have a application in which as i enter the text in a textbox it should populate the jTable, My code takes 5 to 10 mins to populate the data, i use java netbeans and microsoft access database.

jTextField1.addFocusListener(this);

    public void focusGained(FocusEvent e) {
        try {
                Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String filename = "C:/Users/Office User/Desktop/testfordb/test.mdb";
String database = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=";
                database+= filename.trim() + ";DriverID=22}";
Connection con = DriverManager.getConnection( database ,"",""); 
Statement st = con.createStatement();
                // search
String query1 = "select * from "+jTextField4.getText()+" where `U NAME` like '"+name.getText()+"%' ";
ResultSet rs1 = st.executeQuery(query1); 
                            jTable1.setModel(DbUtils.resultSetToTableModel(rs1));
                 
        }
catch (ClassNotFoundException | SQLException e) {
 e.printStackTrace();
 System.out.println("Error: " + e);
    }
    }

    public void focusLost(FocusEvent e) {
       // Save the text 
    }

[Rabbit]

Focus happens when you first enter a control when you weren't in it before. If you want something to happen each time a key is pressed, you'll need to use that event.

[PreethiGowri]

If you want something to happen each time a key is pressed, you'll need to use that event.

I did not understand this, Can i get an example please?

[r035198x]

You need a KeyListener to listen for key events: http://docs.oracle.com/javase/tutori...ylistener.html