//: c13:TextArea.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Using the JTextArea control.
// <applet code=TextArea width=475 height=425>
// </applet>
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import com.bruceeckel.swing.*;
import com.bruceeckel.util.*;
public class TextArea extends JApplet {
JButton
b = new JButton("Add Data"),
c = new JButton("Clear Data");
JTextArea t = new JTextArea(20, 40);
Map m = new HashMap();
public void init() {
// Use up all the data:
Collections2.fill(m,
Collections2.geography,
CountryCapitals.pairs.length);
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e){
for(Iterator it= m.entrySet().iterator();
it.hasNext();){
Map.Entry me = (Map.Entry)(it.next());
t.append(me.getKey() + ": "
+ me.getValue() + "\n");
}
}
});
c.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e){
t.setText("");
}
});
Container cp = getContentPane();
cp.setLayout(new FlowLayout());
cp.add(new JScrollPane(t));
cp.add(b);
cp.add(c);
}
public static void main(String[] args) {
Console.run(new TextArea(), 475, 425);
}
} ///:~