GUI Refinements – Today

My final refinement (for the moment) is that, I want today’s date to be the default date. To do this I need to import two libararies:

import java.text.SimpleDateFormat;  
import java.util.Date;  

I then need to get the current date:

Date today = new Date();

In order to get each part of the date (day, month, year), i will simply use the SimpleDateFormat library, and create three formatters:

SimpleDateFormat currentDay = new SimpleDateFormat("dd");  
SimpleDateFormat currentMonth = new SimpleDateFormat("MM");
SimpleDateFormat currentYear = new SimpleDateFormat("yyyy");

Setting each value is simple, in the original code I set the default year to “0000”. To use change it to the current year I simply change:

private JTextField textFieldYear = new JTextField("0000");

to

private JTextField textFieldYear = new JTextField(currentYear.format(today), 4);

comboBoxDay.setSelectedIndex(0);
comboBoxMonth.setSelectedIndex(0);

to

comboBoxDay.setSelectedIndex(Integer.parseInt(currentDay.format(today)));
comboBoxMonth.setSelectedIndex(Integer.parseInt(currentMonth.format(today)));

Now i could stop here but i need to also change the default year in the focusLost method:

public void focusLost(FocusEvent e) {
        if (textFieldYear.getText().equals("")){
            textFieldYear.setText(currentYear.format(today));
        }
}

At this point my Zeller program is complete.