//TextInput.java
import java.awt.*; 
import javax.swing.*;

class TextInput { 
  public static void main(String[] args) { 
    JFrame frame = new JFrame("TextInput"); 
    Container pane = frame.getContentPane();
    JTextField input = new 
       JTextField("Edit this text then hit <return>");
    Echo listener = new Echo();
    input.addActionListener(listener); 
    pane.add(input); 
    frame.pack();
    frame.show();
  }
}