每分钟检查用户输入的时间

Question

我正在构建一个闹钟，我无法设置闹钟，以便可以提前设置该功能只有在我设置当前时间的闹钟时才能正常工作。我尝试过使用Thread.sleep并且已经同样的结果，所以任何帮助将不胜感激，我的理解主要是基本的，所以我道歉，如果我错过了一些简单的事情。

import javax.swing.*;
import java.awt.*;
import java.io.IOException;
import java.util.Calendar;
import java.util.Scanner;

import net.aksingh.owmjapis.core.OWM;
import net.aksingh.owmjapis.api.APIException;
import net.aksingh.owmjapis.model.CurrentWeather;
import org.jfugue.player.Player;


public class Main {


private static int hour;
private static int minute;
private static int minutetext;
private static int hourtext;



public static void main(String[] args) throws APIException {


    JFrame f = new JFrame();
    f.setSize(320,480);
    OWM owm = new OWM("");
    CurrentWeather cwd = owm.currentWeatherByCityName("");
    int tempcorrect = 273;
    Double temp =cwd.getMainData().getTemp();
    double tempreal = (int) (temp-tempcorrect);



    JPanel mp = new JPanel();
    JPanel tp = new JPanel();
    JPanel bp = new JPanel();


    JButton b1 = new JButton("Set Alarm");
    JButton b2 = new JButton("Stop");
    JLabel l1 = new JLabel("Temperature in " + cwd.getCityName() + " is " + tempreal + " C" );
    JLabel rl = new JLabel("There is a " + cwd.getMainData().getHumidity() + "% chance of rain" );

    bp.add(b1);
    bp.add(b2);
    mp.add(l1);
    mp.add(rl);

    bp.setBorder(BorderFactory.createLineBorder(Color.BLACK));

    mp.add(tp, BorderLayout.NORTH);
    mp.add(bp, BorderLayout.SOUTH);

    DigitalClock myClock = new DigitalClock();
    tp.add(myClock);

    f.add(mp);
    f.setVisible(true);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    b1.addActionListener(e -> {
        JDialog jd = new JDialog();
        JPanel j1 = new JPanel();
        jd.setSize(320,240);
        j1.setSize(180,200);
        j1.setAlignmentY(100);
        FlowLayout f1 = new FlowLayout();
        jd.setLayout(f1);
        jd.add(j1);

        JLabel l2 = new JLabel("Alarm Time (24hrs)");
        JTextField t1 = new JTextField();
        t1.setToolTipText("Hour");
        JTextField t2 = new JTextField();
        t2.setToolTipText("Minutes");


        t1.setColumns(2);
        t2.setColumns(2);

        JButton b21 = new JButton("Set Alarm");
        t1.setLocation(80,300);


        j1.add(l2);


        j1.add(t1);
        j1.add(t2);

        j1.add(b21);

        b21.addActionListener(e1 -> {
            Player player = new Player();
            hourtext= Integer.parseInt(t1.getText());
            minutetext=Integer.parseInt(t2.getText());


            //int v =1;
                if ((hourtext == hour) && (minutetext == minute)) {
                    System.out.println(hour + " : " + minute);
                    player.play("A A A A A A ");
                } else {
                    System.out.println("alarm not active");

                }
        });


        jd.setVisible(true);

    });

}


public static class DigitalClock extends JPanel {

    public static String stringTime;




    public void setStringTime(String xyz) {
        this.stringTime = xyz;
    }

    public int findMinimumBetweenTwoNumbers(int a, int b) {
        return (a <= b) ? a : b;
    }

    DigitalClock() {

        Timer t1 = new Timer(1000, e -> repaint());
        t1.start();
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        Calendar now = Calendar.getInstance();
        hour = now.get(Calendar.HOUR_OF_DAY);
        minute = now.get(Calendar.MINUTE);
        int second = now.get(Calendar.SECOND);

        String correctionHour = (hour < 10) ? "0" : "";
        String correctionMinute = (minute < 10) ? "0" : "";
        String correctionSecond = (second < 10) ? "0" : "";
        setStringTime(correctionHour + hour + ":" + correctionMinute+ minute + ":" + correctionSecond + second);
        g.setColor(Color.BLACK);
        int length = findMinimumBetweenTwoNumbers(this.getWidth(),this.getHeight());
        Font myFont = new Font("SansSerif", Font.PLAIN, length / 5);
        g.setFont(myFont);
        g.drawString(stringTime, length /6, length/2);
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(200, 200);
    }

}

}

Answer 1

我不知道你应该做什么。

您是否要在程序中更改当前飞行时间和分钟值的时间？

如果是的话，

这是我的DigitalClock类的方式。

static class DigitalClock extends JPanel {
    private static final long serialVersionUID = 1L;
    public static String stringTime;

    private static String correctionHour, correctionMinute, correctionSecond;
    private static int second;
    private static Calendar now;

    DigitalClock()
    {
        Timer t1 = new Timer(1000, e -> repaint());

        t1.start();

        now = Calendar.getInstance();
    }

    public static void setStringTime() {
        //stringTime = xyz;
        now = Calendar.getInstance();

        if(hour != 0)
            now.set(Calendar.HOUR_OF_DAY, hour);
        if(minute != 0)
            now.set(Calendar.MINUTE, minute);

        hour = now.get(Calendar.HOUR_OF_DAY);
        minute = now.get(Calendar.MINUTE);
        second = now.get(Calendar.SECOND);

        correctionHour = (hour < 10) ? "0" : "";
        correctionMinute = (minute < 10) ? "0" : "";
        correctionSecond = (second < 10) ? "0" : "";

        stringTime = correctionHour + hour + ":" + correctionMinute+ minute + ":" + correctionSecond + second;
    }

    public static void setStringTime(int _hour, int _minute) {
        hour = _hour;
        minute = _minute;
    }

    public int findMinimumBetweenTwoNumbers(int a, int b) {
        return (a <= b) ? a : b;
    }

    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g);

        setStringTime();
        //setStringTime(correctionHour + hour + ":" + correctionMinute+ minute + ":" + correctionSecond + second);
        g.setColor(Color.BLACK);
        int length = findMinimumBetweenTwoNumbers(this.getWidth(),this.getHeight());
        Font myFont = new Font("SansSerif", Font.PLAIN, length / 5);
        g.setFont(myFont);
        g.drawString(stringTime, length /6, length/2);
    }

    @Override
    public Dimension getPreferredSize() {
        return new Dimension(200, 200);
    }

}

我有两个方法使用不同的参数，setStringTime通过方法重载。

我认为当小时和分钟的值等于零时，没有发生用户操作。

if(hour != 0)
    now.set(Calendar.HOUR_OF_DAY, hour);
if(minute != 0)
    now.set(Calendar.MINUTE, minute);

您只需在b21按钮的ActionListener中设置小时和分钟，如下所示，

b21.addActionListener(e1 -> {
    DigitalClock.setStringTime(hourtext, minutetext);
});

整个代码：

package justtest;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.io.IOException;
import java.util.Calendar;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.Timer;

import org.json.JSONException;

import net.aksingh.owmjapis.CurrentWeather;
import net.aksingh.owmjapis.OpenWeatherMap;

public class WeatherView {
    public static void main(String[] args) throws Exception{
        SwingUtilities.invokeLater(new Runnable(){

            @Override
            public void run() {
                JFrame f = new JFrame();
                f.setSize(320, 480);
                try {
                    new Main(f, "Korea");
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }});

    }

}

class Main {

    private static int hour;
    private static int minute;
    private static int minutetext;
    private static int hourtext;

    //OWM owm = new OWM("");
    private OpenWeatherMap owm = new OpenWeatherMap("your registration code here!!");
    private CurrentWeather cwd;

    public double getMaxTemperatureInCelsius()
    {

        double farenheitTemperature = cwd.getMainInstance().getMaxTemperature();//Farenheit
        return (farenheitTemperature  -  32.0) *5.0/9.0;
    }

    private void setCurrentWeather(String cityName) {
        try {
            cwd = owm.currentWeatherByCityName(cityName);
        } catch (JSONException | IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public Main(final JFrame f, final String cityName) throws Exception{
        setCurrentWeather(cityName);

        int tempcorrect = 273;
        double temp = getMaxTemperatureInCelsius();
        double tempreal = (int) (temp - tempcorrect);

        JPanel mp = new JPanel();
        JPanel tp = new JPanel();
        JPanel bp = new JPanel();

        JButton b1 = new JButton("Set Alarm");
        JButton b2 = new JButton("Stop");
        JLabel l1 = new JLabel("Temperature in " + cwd.getCityName() + " is " + tempreal + " C");
        JLabel rl = new JLabel("There is a " + cwd.getMainInstance().getHumidity() + "% chance of rain");

        bp.add(b1);
        bp.add(b2);
        mp.add(l1);
        mp.add(rl);

        bp.setBorder(BorderFactory.createLineBorder(Color.BLACK));

        mp.add(tp, BorderLayout.NORTH);
        mp.add(bp, BorderLayout.SOUTH);

        DigitalClock myClock = new DigitalClock();
        tp.add(myClock);

        f.add(mp);
        f.setVisible(true);
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        b1.addActionListener(e -> {
            JDialog jd = new JDialog();
            JPanel j1 = new JPanel();
            jd.setSize(320, 240);
            j1.setSize(180, 200);
            j1.setAlignmentY(100);
            FlowLayout f1 = new FlowLayout();
            jd.setLayout(f1);
            jd.add(j1);

            JLabel l2 = new JLabel("Alarm Time (24hrs)");
            JTextField t1 = new JTextField();
            t1.setToolTipText("Hour");
            JTextField t2 = new JTextField();
            t2.setToolTipText("Minutes");

            t1.setColumns(2);
            t2.setColumns(2);

            JButton b21 = new JButton("Set Alarm");
            t1.setLocation(80, 300);

            j1.add(l2);

            j1.add(t1);
            j1.add(t2);

            j1.add(b21);

            b21.addActionListener(e1 -> {
                //Player player = new Player();
                hourtext = Integer.parseInt(t1.getText());
                minutetext = Integer.parseInt(t2.getText());

                // int v =1;
                if ((hourtext == hour) && (minutetext == minute)) {
                    System.out.println(hour + " : " + minute);
                    //player.play("A A A A A A ");
                    DigitalClock.setStringTime(hourtext, minutetext);
                } else {
                    System.out.println("alarm not active");

                }

                DigitalClock.setStringTime(hourtext, minutetext);
            });

            jd.setVisible(true);

        });

    }


    static class DigitalClock extends JPanel {
        private static final long serialVersionUID = 1L;
        public static String stringTime;

        private static String correctionHour, correctionMinute, correctionSecond;
        private static int second;
        private static Calendar now;

        DigitalClock()
        {
            Timer t1 = new Timer(1000, e -> repaint());

            t1.start();

            now = Calendar.getInstance();
        }

        public static void setStringTime() {
            //stringTime = xyz;
            now = Calendar.getInstance();

            if(hour != 0)
                now.set(Calendar.HOUR_OF_DAY, hour);
            if(minute != 0)
                now.set(Calendar.MINUTE, minute);

            hour = now.get(Calendar.HOUR_OF_DAY);
            minute = now.get(Calendar.MINUTE);
            second = now.get(Calendar.SECOND);

            correctionHour = (hour < 10) ? "0" : "";
            correctionMinute = (minute < 10) ? "0" : "";
            correctionSecond = (second < 10) ? "0" : "";

            stringTime = correctionHour + hour + ":" + correctionMinute+ minute + ":" + correctionSecond + second;
        }

        public static void setStringTime(int _hour, int _minute) {
            hour = _hour;
            minute = _minute;
        }

        public int findMinimumBetweenTwoNumbers(int a, int b) {
            return (a <= b) ? a : b;
        }

        @Override
        public void paintComponent(Graphics g) {
            super.paintComponent(g);

            setStringTime();
            //setStringTime(correctionHour + hour + ":" + correctionMinute+ minute + ":" + correctionSecond + second);
            g.setColor(Color.BLACK);
            int length = findMinimumBetweenTwoNumbers(this.getWidth(),this.getHeight());
            Font myFont = new Font("SansSerif", Font.PLAIN, length / 5);
            g.setFont(myFont);
            g.drawString(stringTime, length /6, length/2);
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 200);
        }

    }
}

我希望这可以提供帮助。