//******************************************************************************
// feigen.java:	Applet
//
//******************************************************************************
import java.applet.*;
import java.awt.*;

//==============================================================================
// Main Class for applet feigen
//
//==============================================================================
public class feigen extends Applet
{
	private Label m_funclab = new Label("f(x)=k*x(1-x)");
	private Label m_xvalue = new Label("x = 0.200");
	private Label m_kvalue = new Label("k = 2.000");	
	private TextField m_xset = new TextField(4);
	private TextField m_kset = new TextField(4);
	private Button m_change = new Button("Change");
	private Button m_iterate = new Button("Next");
	double x=0.2;
	double k=2;

	// feigen Class Constructor
	//--------------------------------------------------------------------------
	public feigen()
	{
		// TODO: Add constructor code here
	}

	// APPLET INFO SUPPORT:
	//		The getAppletInfo() method returns a string describing the applet's
	// author, copyright date, or miscellaneous information.
    //--------------------------------------------------------------------------
	public String getAppletInfo()
	{
		return "Name: feigen\r\n" +
		       "Author: Krishnan Eswaran\r\n" +
		       "Created with Microsoft Visual J++ Version 1.1";
	}


	// The init() method is called by the AWT when an applet is first loaded or
	// reloaded.  Override this method to perform whatever initialization your
	// applet needs, such as initializing data structures, loading images or
	// fonts, creating frame windows, setting the layout manager, or adding UI
	// components.
    //--------------------------------------------------------------------------
	public void init()
	{
        // If you use a ResourceWizard-generated "control creator" class to
        // arrange controls in your applet, you may want to call its
        // CreateControls() method from within this method. Remove the following
        // call to resize() before adding the call to CreateControls();
        // CreateControls() does its own resizing.
        //----------------------------------------------------------------------
    	resize(320, 240);

		// TODO: Place additional initialization code here
		add(m_funclab);
		add(m_xvalue);
		add(m_xset);
		add(m_kvalue);	
		add(m_kset);
		add(m_change);
		add(m_iterate);
		m_xset.setText("0.20");
		m_kset.setText("2.0");
	}

	// Place additional applet clean up code here.  destroy() is called when
	// when you applet is terminating and being unloaded.
	//-------------------------------------------------------------------------
	public void destroy()
	{
		// TODO: Place applet cleanup code here
	}

	// feigen Paint Handler
	//--------------------------------------------------------------------------
	public void paint(Graphics g)
	{
		//g.drawString("Created with Microsoft Visual J++ Version 1.1", 10, 20);
	}

	public boolean action(Event event, Object obj) {
		Object oTarget = event.target;
		if (oTarget instanceof Button) {
			Button buttonTarget = (Button)oTarget;
			String sButtonString = buttonTarget.getLabel();
			if (sButtonString.compareTo("Change") == 0) {
				String s1 = m_xset.getText();
				String s2 = m_kset.getText();
				x = (Double.valueOf(s1)).doubleValue();
				k = (Double.valueOf(s2)).doubleValue();
				m_xvalue.setText("x = " + s1);
				m_kvalue.setText("k = " + s2);
				return true;

			}
			if (sButtonString.compareTo("Next") == 0) {
				x = k*x*(1-x);
				m_xvalue.setText("x = " + String.valueOf(x));
				return true;
			}
		}
		return false;
	}

	//		The start() method is called when the page containing the applet
	// first appears on the screen. The AppletWizard's initial implementation
	// of this method starts execution of the applet's thread.
	//--------------------------------------------------------------------------
	public void start()
	{
		// TODO: Place additional applet start code here
	}
	
	//		The stop() method is called when the page containing the applet is
	// no longer on the screen. The AppletWizard's initial implementation of
	// this method stops execution of the applet's thread.
	//--------------------------------------------------------------------------
	public void stop()
	{
	}




	// TODO: Place additional applet code here

}