String Username = jTextFieldUsername.getText();
     String Password = jTextFieldPassword.getText();
    try { Class.forName("com.mysql.jdbc.Driver"); }
    catch(java.lang.ClassNotFoundException e) { System.err.print("ClassNotFoundException: " + e.getMessage()); }
    String passwordDB = "";
try {
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/ipig", "root", "root");
Statement stmt;
stmt = con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);
stmt.executeUpdate("Insert into login(username,password)values('"+Username+"','"+Password+"')" );

stmt.close();
con.close();
new register().setVisible(false);
new iPig2().setVisible(true);

}
catch(SQLException ex) { System.err.println("SQLException: " + ex.getMessage()); }