Button help

[308holes]

Im stuck in java on buttons can someone make me a script that has 2 buttons that when you click the first button it diplays the time in a label and for the other one when you press it it display the date ?? in a second label?

[daveyboy]

This should do what you want.........

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Calendar;

public class Buttons extends JFrame
{
    JLabel dateTimeJLabel = new JLabel("");
    JButton dateJButton = new JButton("Show Date");
    JButton timeJButton = new JButton("Show Time");

    public Buttons()
    {
        dateJButton.addActionListener(new Listener());
        timeJButton.addActionListener(new Listener());
        JPanel mainJP = new JPanel(new GridLayout(2,1));
        getContentPane().add(mainJP);
        mainJP.add(dateTimeJLabel); 
        JPanel buttonJP = new JPanel(new GridLayout(1,2));
        buttonJP.add(dateJButton); 
        buttonJP.add(timeJButton);
        mainJP.add(buttonJP);

    }
    public class Listener implements ActionListener
    {
        public void actionPerformed(ActionEvent e)
        {
            String command = e.getActionCommand();
            if (command.equals("Show Date"))
            {
                Calendar cal = Calendar.getInstance();
                String theDate = "" + cal.get(Calendar.DAY_OF_MONTH);
                theDate += "/" + (cal.get(Calendar.MONTH) + 1);
                theDate += "/" + cal.get(Calendar.YEAR);
                dateTimeJLabel.setText(theDate); 
            }
            if (command.equals("Show Time"))
            {
                Calendar cal = Calendar.getInstance();
                String theDate = "" + cal.get(Calendar.HOUR);
                theDate += ":" + (cal.get(Calendar.MINUTE));
                theDate += ":" + cal.get(Calendar.SECOND);
                dateTimeJLabel.setText(theDate); 
            }
        }
    }

    public static void main(String [] args)
    {
        Buttons b = new Buttons();
        b.setVisible(true);
        b.setBounds(50,50,200,200);
    }
}

[daveyboy]

For 2 buttons just change the mainJP.add to add a GridLayout then add another JLabel within there

then within the ActionListener just change the JLabel that the Time gets set to.....

[308holes]

Ok thanks that helped me a lot i was stuck on how the button would know what action to preform but you just fixed that thanks!!

[daveyboy]

Just in case anyone does want some code for file output:

import java.io.*;

public class FileSavingDemo implements Serializable
{
    File myFile = new File("sd.rnd");
    SerializableDemo sd;

    public void init()
    {
        if (myFile.exists()) //the file has been created, therefore can be used
        {
            try
            {
                FileInputStream in = new FileInputStream(myFile);
                ObjectInputStream p;
                try
                {
                    p = new ObjectInputStream(in);
                    Object s;
                    try
                    {
                        s = p.readObject();
                    }
                    catch(ClassNotFoundException e)
                    {
                        s = "";
                    } 
                }
                catch(StreamCorruptedException e)
                {
                    sd = new SerializableDemo(new java.util.Date().toString());
                    System.out.println("Corrupted File, created to be written: " + sd.getText());                    
                }
 
                if (s instanceof SerializableDemo)
                { 
                    sd = (SerializableDemo)s;
                    System.out.println("Read from file: " + sd.getText());
                }
                else
                {
                   sd = new SerializableDemo(new java.util.Date().toString());
                }
            }
            catch(IOException e)
            {
                e.printStackTrace();
                System.out.println("Error on IO, created to be written: " + sd.getText());
                sd = new SerializableDemo(new java.util.Date().toString());
            }
        }  
        else
        {
           sd = new SerializableDemo(new java.util.Date().toString());
           System.out.println("No file detected, created to be written: " + sd.getText());
        } 
    }

    public void save()
    {
        try
        {
            FileOutputStream out = new FileOutputStream(myFile);
            ObjectOutputStream p = new ObjectOutputStream(out);
            sd = new SerializableDemo(new java.util.Date().toString());
            System.out.println("Written to file: " + sd.getText());
            p.writeObject(sd);
            p.flush();
            out.close();
        }
        catch(IOException e){}
    }

    public class SerializableDemo implements Serializable
    {
        String text;

        public SerializableDemo(String theText)
        {
            text = theText;
        }

        public void setText(String theText)
        {
            text = theText;
        }

        public String getText()
        {
            return text;
        }
    }

    public static void main(String [] args)
    {
        FileSavingDemo fd = new FileSavingDemo();
        fd.init();
        fd.save();
    }
}

If anyone needs any more help let me know............

[Pix]

[308holes]

Thanks