LoginController.java

package com.example.loanproject;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.fxml.Initializable;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;
import java.io.IOException;
import java.net.URL;
import java.util.Objects;
import java.util.ResourceBundle;
import java.util.logging.Level;
import java.util.logging.Logger;

//import static java.awt.Toolkit.resources;

public class LoginController implements Initializable {
    public Button button_perloan;
    public Button button_homeloan;
    public Button button_eduloan;
    public Button button_Vechloan;
    public Button button_Bussloan;
    @FXML
    private Button button_logout;
    @FXML
    private Button button_contact;
    @FXML
    private Button button_home;
    @FXML
    private Button button_bank;
    @FXML
    private Button button_about;
    @FXML
    private static Label label_welcome;
    @FXML
    private static Label label_info;
    @FXML
    private Label label_advise;

    @Override
    public void initialize(URL url, ResourceBundle resourceBundle) {
        button_logout.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {

                DBUtils.changeScene(event, "sample.fxml", "Log in", null);
            }
        });


        button_contact.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Contact.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Contact Us");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();//to hide old window
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed to get calculator ", e);
                }
            }
        });

        button_bank.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("calculator.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Emi Calculator");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed to get Calculator ", e);
                }
            }
        });
        button_about.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Aboutus.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("About us");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_home.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("logged-in.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Home page");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_homeloan.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Homeloan.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Home loan details");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_perloan.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Personalloan.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Personal loan details");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_eduloan.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Educationloan.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Education loan details");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_Vechloan.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Vehicleloan.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Vehicle loan details");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });
        button_Bussloan.setOnAction(new EventHandler<ActionEvent>() {
            public void handle(ActionEvent event) {
                try {
                    FXMLLoader fxmlLoader = new FXMLLoader();
                    fxmlLoader.setLocation(getClass().getResource("Businessloan.fxml"));
                    Scene scene = new Scene(fxmlLoader.load());
                    Stage stage = new Stage();
                    stage.setTitle("Business loan details");
                    stage.setScene(scene);
                    stage.show();
                    ((Node) (event.getSource())).getScene().getWindow().hide();
                } catch (IOException e) {
                    Logger logger = Logger.getLogger(getClass().getName());
                    logger.log(Level.SEVERE, "Failed", e);
                }
            }
        });


    }

    public static void setUserInformation(String username) {

    }

}