Show Time in JSpinner Component
In this section, you will learn about the creation of a JSpinner Component
with time. Here, you will see
time is increased or decreased with the help of JSpinner button. This program
increases or decreases the time and change hour from 1 to 12. Following image
shows you a JSpinner component with time:
If you
want to increase or decrease the minute then you have to put the cursor in the
minute section of the JSpinner. Following are some methods and APIs:
Date():
This is the constructor of Date class. Date
class is used by importing from java.util.*; package of java. This class
is used to represent date and time according to
Greenwich Mean Time (GMT)
by default.
SpinnerDateModel():
It is a constructor of SpinnerDateModel
class. It creates a SpinnerDateModel and takes date and Calendar.HOUR_OF_DAY
from a calendar.
Calendar.HOUR_OF_DAY
This is the Calendar class field which
returns the hour of the specified time.
JSpinner.DateEditor(spinner, "hh:mm"):
This is the constructor of JSpinner.DateEditor
class. It is used to formatting the date given in the JSpinner component. This
constructor takes two argument in which, first is the JSpinner specification and
second one is the format in "hh:mm" means first come hour and then the
minute.
setEditor():
This is the method of the JSpinner class
i.e. used to change that component which is helpful to show the current value of
the SpinnerModel.
Here is the code of program:
import javax.swing.*;
import java.awt.*;
import java.util.*;
public class ShowTimeJSpinner{
public static void main(String[] args) {
ShowTimeJSpinner h = new ShowTimeJSpinner();
}
public ShowTimeJSpinner(){
JFrame frame = new JFrame("Creating JSpinner Component with time");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Date date = new Date();
SpinnerDateModel sm = new SpinnerDateModel(date, null, null, Calendar.HOUR_OF_DAY);
JSpinner spinner = new JSpinner(sm);
JSpinner.DateEditor de = new JSpinner.DateEditor(spinner, "hh:mm");
spinner.setEditor(de);
frame.add(spinner,BorderLayout.NORTH);
frame.setSize(100,100);
frame.setVisible(true);
}
}
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