import java.applet.*;
import java.awt.*;

public class flow extends Applet


{
 Frame window = new Frame("This is the Frame's Title Bar!");
 Button btn = new Button("Destroy the Frame");

 public void init()
  {

   add(new Label("The Frame created by this applet has a Border layout."));
   add(new Label("Resize the Frame to see how the components"));
   add(new Label("automatically adjust. Click on an option below and"));
   add(new Label("the layout of the Frame will change."));
   add(new Label("You must use the applet's button to delete the Frame."));
   CheckboxGroup align = new CheckboxGroup();
   add(new Checkbox("Flow Center Arrangement",align,false));
   add(new Checkbox("Flow Right Arrangement",align,false));
   add(new Checkbox("Flow Left Arrangement",align,false));
   add(new Checkbox("Grid (or GridBag) Arrangement",align,false));
   add(new Checkbox("Card (Hyper Card) Arrangement",align,false));
   add(new Label("Hit this button to"));
   add(btn);
   add(new Label("."));
   window.setLayout(new BorderLayout(10,5));
   window.add("North",new Button("One"));
   window.add("South",new Button("Two"));
   window.add("East",new Button("Three"));
   window.add("West",new Button("Four"));
   window.add("Center",new Button("Five"));
   window.resize(300,200);
   window.show();
  }

 public boolean action(Event evt, Object whatAction)
  {
   
    if((evt.target instanceof Checkbox))
	{
	  Checkbox currentCheckbox = (Checkbox)evt.target;
	  boolean checkboxState = currentCheckbox.getState();
	  if (currentCheckbox.getLabel() == "Flow Center Arrangement")
		if (checkboxState)
		{
	          window.hide();
	          window.dispose();
     		  window.setLayout(new FlowLayout(FlowLayout.CENTER,2,2));
		  window.resize(300,200);
		  window.show();
		}
	 if (currentCheckbox.getLabel() == "Flow Right Arrangement")
		if (checkboxState)
		{
	          window.hide();
	          window.dispose();
     		  window.setLayout(new FlowLayout(FlowLayout.RIGHT,2,2));
		  window.resize(300,200);
		  window.show();
		}
	 if (currentCheckbox.getLabel() == "Flow Left Arrangement")
		if (checkboxState)
		{
	          window.hide();
	          window.dispose();
     		  window.setLayout(new FlowLayout(FlowLayout.LEFT,2,2));
		  window.resize(300,200);
		  window.show();
		}
	 if (currentCheckbox.getLabel() == "Grid (or GridBag) Arrangement")
		if (checkboxState)
		{
	          window.hide();
	          window.dispose();
     		  window.setLayout(new GridLayout(2,3,5,10));
		  window.resize(300,200);
		  window.show();
		}
	 if (currentCheckbox.getLabel() == "Card (Hyper Card) Arrangement")
		if (checkboxState)
		{
	          window.hide();
	          window.dispose();
     		  window.setLayout(new CardLayout());
		  window.resize(300,200);
		  window.show();
		}
	return true;
      }
    if((evt.target instanceof Button))
     { 
	String buttonLabel = (String) whatAction;
	if (buttonLabel == "Destroy the Frame")
	 {
          window.hide();
          window.dispose();
	  return true;
	 }
     }
    return false;
  }
public Insets insets()
  {
   return new Insets(10,20,30,40);
  }
}