Create method that takes typed time

Question

How can I create a method that takes the time typed in a field?

It will take the contents of the field to save in the database. I use pojo and dao.

I made a very short example, what I need to do is a method that takes this String content and can save as Time or TimeStamp at the bank.

what I tried to do was:

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Time;
import java.text.SimpleDateFormat;
import javax.swing.JButton;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.text.MaskFormatter;

public class Hora extends JFrame {

    public static void main(String[] args) {
        Hora t = new Hora();
        t.setVisible(true);
    }

    private Pojo pojo = new Pojo();

    JFormattedTextField campoHora = new JFormattedTextField();
    JButton pegar = new JButton("Pegar");

    public Hora() {
        setSize(450, 300);
        setDefaultCloseOperation(EXIT_ON_CLOSE);

        try {
            MaskFormatter mf = new MaskFormatter("##:##:##");
            mf.install(campoHora);
        } catch (Exception e) {
            e.printStackTrace();
        }
        JPanel painel = new JPanel();
        painel.add(campoHora);
        campoHora.setPreferredSize(new Dimension(80, 22));

        painel.add(pegar);
        pegar.setPreferredSize(new Dimension(75, 22));
        acao();

        add(painel);
    }

    private void pegaPojo() {
        pojo.setHora(campoHora.getValorTime());
    }

    private void acao() {
        pegar.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                //campoHora.getValorTime();
            }
        });
    }

    private Time getValorTime() {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
            return sdf.parse(getText());
        } catch (Exception e) {
            JOptionPane.showMessageDialog(null, "Não foi possível obter a hora!");
            e.printStackTrace();
            return null;
        }
    }
}

class Pojo {

    private Time hora;

    public Time getHora() {
        return hora;
    }

    public void setHora(Time hora) {
        this.hora = hora;
    }
}

Answer 1

I made few changes to the code and worked smoothly, picking the time of the field in the click:

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.SimpleDateFormat;
import javax.swing.JButton;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.text.MaskFormatter;

public class Hora extends JFrame {

    public static void main(String[] args) {

        SwingUtilities.invokeLater(() -> {
            Hora t = new Hora();
            t.setVisible(true);
        });
    }

    JFormattedTextField campoHora = new JFormattedTextField();
    JButton pegar = new JButton("Pegar");

    public Hora() {
        setSize(450, 300);
        setDefaultCloseOperation(EXIT_ON_CLOSE);

        try {
            MaskFormatter mf = new MaskFormatter("##:##:##");
            mf.install(campoHora);

        } catch (Exception e) {
            e.printStackTrace();
        }
        JPanel painel = new JPanel();
        painel.add(campoHora);
        campoHora.setPreferredSize(new Dimension(80, 22));

        painel.add(pegar);
        pegar.setPreferredSize(new Dimension(75, 22));
        acao();

        add(painel);
    }

    private void acao() {
        pegar.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
                    System.out.println(new java.sql.Timestamp(sdf.parse(campoHora.getText()).getTime()));
                } catch (Exception e) {
                    JOptionPane.showMessageDialog(null, "Não foi possível obter a hora!");
                    campoHora.setText("");
                    e.printStackTrace();
                }
            }
        });
    }
}

That way, he turns the guy Date for the format Timestamp, which can be saved in a similar field in your bank.

But I would use Jspinners, because then you can better control what is informed, without needing to stay dealing with whether the time is valid or not. If you are interested, here is a example of use of it with only hours, minutes and seconds.