package base;
 
import gui.Gui;
 
import javax.swing.SwingUtilities;
 
public class Main {
 
	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable(){
			public void run(){
				new Gui();
			}
		});
	}
}
 

package gui;
 
import java.awt.Component;
import java.awt.Container;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Time;
 
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
 
import base.CheckTime;
 
public class Gui extends JFrame implements ActionListener{
	private int width = 370,height = 150;
	private String windowTitle = "ShutdownProgramer";
	private String textButtonProgram = "Program shutdown";
	private String textButtonCancel = "Cancel shutdown";
	private int maxHour = 24,maxMin = 60,maxSec = 60;
	private JComboBox<Integer> hour = new JComboBox<Integer>();
	private JComboBox<Integer> min = new JComboBox<Integer>();
	private JComboBox<Integer> sec = new JComboBox<Integer>();
	private JButton programShutdown = new JButton(textButtonProgram);
	private JButton cancelShutdown = new JButton(textButtonCancel);
	private boolean isStarted = false;
	public Gui(){
		setSize(width,height);
		setTitle(windowTitle);
		setLocationRelativeTo(null);
		setResizable(false);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setLayout(new GridBagLayout());
		configureJComboBoxes();
		configureJButton();
		setVisible(true);
	}
 
	public void addComponentGBL(Container container, Component component, int gridx, int gridy, int gridwidth, int gridheight, int anchor, int fill, int inset1, int inset2, int inset3, int inset4) {
		Insets insets = new Insets(inset1, inset2, inset3, inset4);
		GridBagConstraints gbc = new GridBagConstraints(gridx, gridy, gridwidth, gridheight, 1.0, 1.0, anchor, fill, insets, 0, 0);
	    container.add(component, gbc);
	  }
 
	public void configureJComboBoxes(){
		for(int i = 0; i < maxHour; i++)
			hour.addItem(i);
		for(int i = 0; i < maxMin; i++)
			min.addItem(i);
		for(int i = 0; i < maxSec; i++)
			sec.addItem(i);
 
		addComponentGBL(this,hour,0,0,1,0,GridBagConstraints.CENTER, GridBagConstraints.CENTER, 0, 90, 40, 0);
		addComponentGBL(this,min,1,0,1,0,GridBagConstraints.CENTER, GridBagConstraints.CENTER, 0, 0, 40, 0);
		addComponentGBL(this,sec,2,0,1,0,GridBagConstraints.CENTER, GridBagConstraints.CENTER, 0, 0, 40, 90);
	}
 
	public void configureJButton(){
		addComponentGBL(this,programShutdown,0,0,0,0,GridBagConstraints.CENTER, GridBagConstraints.CENTER, 40, 0, 0, 150);
		addComponentGBL(this,cancelShutdown,0,0,0,0,GridBagConstraints.CENTER, GridBagConstraints.CENTER, 40, 150, 0, 0);
		programShutdown.addActionListener(this);
		cancelShutdown.addActionListener(this);
	}
 
    public void actionPerformed(ActionEvent evt) {
    CheckTime time = new CheckTime(hour.getSelectedIndex(), min.getSelectedIndex(), sec.getSelectedIndex());
    if(evt.getSource() == programShutdown && isStarted == false){
    System.out.println("iniciado!");
    time.execute();
    isStarted = true;
    } else if(evt.getSource() == cancelShutdown && isStarted == true){
    System.out.println("cancelado!");
    time.stopThread();
    isStarted = false;
    }
 
    }
 
}
 

package base;
 
import java.util.Calendar;
 
import javax.swing.SwingWorker;
 
public class CheckTime extends SwingWorker<Object, Object> {
 
		private int copyHour;
		private int copyMin;
		private int copySec;
		private boolean running;
 
	public CheckTime(int hour, int min, int sec) {
		copyHour = hour;
		copyMin = min;
		copySec = sec;
	}
 
	protected Object doInBackground() throws Exception {
		Calendar calendario;
 
		int thisHour;
		int thisMin;
		int thisSec;
 
		this.running = true;
 
		System.out.println("iniciado!");
 
		do {
			calendario = Calendar.getInstance();
			thisHour = calendario.get(Calendar.HOUR_OF_DAY);
			thisMin = calendario.get(Calendar.MINUTE);
			thisSec = calendario.get(Calendar.SECOND);
 
			System.out.println("funcionando: " + thisHour + ":" + thisMin + ":" + thisSec);
 
			if (copyHour == thisHour && copyMin == thisMin && copySec == thisSec) {
			this.running = false;
			}
 
			try {
			Thread.sleep(1000);
			} catch (InterruptedException e) {
			System.out.println("Thread sleep de ChekcHour a fallado");
			}
		} while (this.running);
 
			System.out.println("APAGATE!");
			return null;
	}
 
	public void stopThread() {
		this.running = false;
	}
}