textview.java

我这次还是java的代码

/**
 * 
 */
package hnu.software.pfdai;

import java.awt.GridLayout;
import java.util.Observable;
import java.util.Observer;

import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;

/**
 * @author daipengfei
 * 
 */
public class TextView extends JPanel implements Observer {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private JLabel tipLabel;

	private JTextField countIn;

	private ButtonGroup group;

	private JRadioButton noChangeRB;

	private JRadioButton randomRB;

	private JRadioButton changeRB;

	/**
	 * Constructs a new JPanel that is initially invisible.
	 * 
	 */
	public TextView() {
		// input view
		tipLabel = new JLabel("please input your play times:");
		countIn = new JTextField(10);

		// initial the radioButton
		noChangeRB = new JRadioButton("No change", false);
		randomRB = new JRadioButton("Random choice", false);
		changeRB = new JRadioButton("Choose another door", false);
		// initial the radioButton group
		group = new ButtonGroup();
		group.add(noChangeRB);
		group.add(randomRB);
		group.add(changeRB);

		this.setLayout(new GridLayout(5, 1));
		// add component to panel
		add(tipLabel);

		JPanel panel = new JPanel();
		JLabel label1 = new JLabel(" ");
		JLabel label2 = new JLabel(" ");
		// add the input for countIn
		panel.add(label1);
		panel.add(countIn);
		panel.add(label2);
		add(panel);

		// add radioButton but visible is false
		add(noChangeRB);
		add(randomRB);
		add(changeRB);
		noChangeRB.setVisible(false);
		randomRB.setVisible(false);
		changeRB.setVisible(false);

	}

	/**
	 * main test
	 * 
	 * @param args
	 */
	public static void main(String[] args) {
		JFrame myFrame = new JFrame();
		myFrame.add(new TextView());
		myFrame.setSize(400, 300);
		myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		myFrame.setVisible(true);
	}

	/**
	 * This method is called whenever the observed object is changed. An
	 * application calls an <tt>Observable</tt> object's
	 * <code>notifyObservers</code> method to have all the object's observers
	 * notified of the change.
	 * 
	 * @param o
	 *            the observable object.
	 * @param arg
	 *            an argument passed to the <code>notifyObservers</code>
	 *            method.
	 */
	public void update(Observable o, Object arg) {
		Model model = (Model) o;
		if (model.getTimes() == 0) {
			// hide radioButton
			noChangeRB.setVisible(false);
			randomRB.setVisible(false);
			changeRB.setVisible(false);
			// appear the input
			tipLabel.setText("please input your play times:");
			countIn.setVisible(true);
			countIn.setText("");
		} else {
			// show the radioButton
			noChangeRB.setVisible(true);
			randomRB.setVisible(true);
			changeRB.setVisible(true);
			countIn.setVisible(false);
			tipLabel.setText("your choice is " + model.getChoice()
					+ " one goat is in " + model.getTipChoice());
		}

	}

	/**
	 * add Listener
	 * 
	 * @param controller
	 */
	public void addActionListener(Controller controller) {
		countIn.addActionListener(controller);
		noChangeRB.addActionListener(controller);
		randomRB.addActionListener(controller);
		changeRB.addActionListener(controller);
	}

}