package three.day.frame;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;


import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;




public class JOptionPaneDemo02 implements ActionListener
{
JFrame f = null;
JLabel lb = null;
public JOptionPaneDemo02()
{
f = new JFrame("OptionPane Demo");
Container cp = f.getContentPane();
JPanel pa = new JPanel();
pa.setLayout(new GridLayout(2,1));
JButton bt = new JButton("Show Text Input");
bt.addActionListener(this);
pa.add(bt);
bt = new JButton("Show ComboBox Input");
bt.addActionListener(this);
pa.add(bt);
lb = new JLabel(" ",JLabel.CENTER);
cp.add(lb,BorderLayout.NORTH);
cp.add(pa,BorderLayout.CENTER);
f.pack();
f.setVisible(true);
f.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
}
public static void main(String[] args)
{
new JOptionPaneDemo02();
}


@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
String cmd = e.getActionCommand();
String title = "Input Dialog";
String message = "你最熟悉哪一門程式語言？";
int type = JOptionPane.QUESTION_MESSAGE;
String[] values = {"VB","C++","JAVA","ASP","PHP"};
String result="";
if(cmd.equals("Show Text Input"))
{
result = JOptionPane.showInputDialog(f,message,title,type);
}
if(cmd.equals("Show ComboBox Input"))
{
result = (String)JOptionPane.showInputDialog(f,message,title,type,null,values,values[0]);
}
if(null==result)
{
lb.setText("你取消了對話方塊");
}
else if(""==result)
{
lb.setText("你沒輸入呢");
}
else
{
lb.setText("你輸入："+result);
}
}


}