OnJava8-Examples/ui/TextArea.java
2015-11-03 12:00:44 -08:00

32 lines
859 B
Java

// ui/TextArea.java
// Using the JTextArea control.
import javax.swing.*;
import java.awt.*;
import java.util.*;
import com.mindviewinc.util.*;
import static com.mindviewinc.util.SwingConsole.*;
public class TextArea extends JFrame {
private JButton
b = new JButton("Add Data"),
c = new JButton("Clear Data");
private JTextArea t = new JTextArea(20, 40);
private Map<String,String> m = new HashMap<>();
public TextArea() {
// Use up all the data:
m.putAll(Countries.capitals());
b.addActionListener(e -> {
for(Map.Entry me : m.entrySet())
t.append(me.getKey() + ": "+ me.getValue()+"\n");
});
c.addActionListener(e -> t.setText(""));
setLayout(new FlowLayout());
add(new JScrollPane(t));
add(b);
add(c);
}
public static void main(String[] args) {
run(new TextArea(), 475, 425);
}
}