import java.applet.*;
import java.awt.*;
import java.text.DecimalFormat;
/*-------------------------------------------------------------------*
 * NTU Student: Java With Engineering Applications, Spring 1999
 * Assignment # 3 - Java How To Program 2nd edition, Deitel & Deitel
 * Problem 7.26 on page 403 - Implement Abstract Shape Class
 *
 * Michael Kusmierz
 * Xerox Corporation
 * Rev 1.0	Mar 2, 1999 
 *
 * This code represents a students work in progress 
 * and is not to be used beyond that purpose.
 *-------------------------------------------------------------------*/ 

public class Driver2 extends Applet {
	Font font = new Font("Dialog", Font.BOLD, 12);
	String str = "Welcome to Problem 7.26 Implementing a Shape Hierarchy";
	int xPos = 5;
	private TextArea ivjTextArea1 = null;
	//-- two D shapes
	private Circle testCircle;
	private Square testSquare;
	private Triangle testTriangle;
	//-- three D shapes
	private Sphere testSphere;
	private Cube testCube;
	private Cylinder testCylinder;
/**
 * Returns information about this applet.
 * @return a string of information about this applet
 */
public String getAppletInfo() {
	return "Driver2\n" + 
		"Deitel&Deitel Problem 7.26:\n" + 
		" Using an interface to an Abstract Hierarchy of Shapes\n" + 
		"";
}
/**
 * Return the TextArea1 property value.
 * @return java.awt.TextArea
 */
/* WARNING: THIS METHOD WILL BE REGENERATED. */
private TextArea getTextArea1() {
	if (ivjTextArea1 == null) {
		try {
			ivjTextArea1 = new java.awt.TextArea();
			ivjTextArea1.setName("TextArea1");
			ivjTextArea1.setBounds(11, 70, 407, 238);
			// user code begin {1}
			// user code end
		} catch (java.lang.Throwable ivjExc) {
			// user code begin {2}
			// user code end
			handleException(ivjExc);
		}
	};
	return ivjTextArea1;
}
/**
 * Called whenever the part throws an exception.
 * @param exception java.lang.Throwable
 */
private void handleException(Throwable exception) {

	/* Uncomment the following lines to print uncaught exceptions to stdout */
	// System.out.println("--------- UNCAUGHT EXCEPTION ---------");
	// exception.printStackTrace(System.out);
}
/**
 * Initializes the applet.
 * 
 * @see #start
 * @see #stop
 * @see #destroy
 */
public void init() {
	super.init();
	try {
		setName("Driver2");
		setLayout(null);
		setSize(440, 320);
		add(getTextArea1(), getTextArea1().getName());
		// user code begin {1}

		//--- Create instances of Two D shapes and give dimensions
		testCircle = new Circle(5);
		testSquare = new Square(6);
		testTriangle = new Triangle(6,6);
		
		//--- Create instances of Three D shapes and give dimensions
		testSphere = new Sphere(5);
		testCube = new Cube(6);
		testCylinder = new Cylinder(5,2);

		//--- print results dimensions as well as area and volume		
		printResults();
		
		// user code end
	} catch (java.lang.Throwable ivjExc) {
		// user code begin {2}
		// user code end
		handleException(ivjExc);
	}
}
/**
 * main entrypoint - starts the part when it is run as an application
 * @param args java.lang.String[]
 */
public static void main(java.lang.String[] args) {
	try {
		Frame frame;
		try {
			Class aFrameClass = Class.forName("com.ibm.uvm.abt.edit.TestFrame");
			frame = (Frame)aFrameClass.newInstance();
		} catch (java.lang.Throwable ivjExc) {
			frame = new Frame();
		}
		Driver2 aDriver2;
		Class iiCls = Class.forName("Driver2");
		ClassLoader iiClsLoader = iiCls.getClassLoader();
		aDriver2 = (Driver2)java.beans.Beans.instantiate(iiClsLoader,"Driver2");
		frame.add("Center", aDriver2);
		frame.setSize(aDriver2.getSize());
		frame.setVisible(true);
	} catch (Throwable exception) {
		System.err.println("Exception occurred in main() of java.applet.Applet");
		exception.printStackTrace(System.out);
	}
}
/**
 * Draws the text on the drawing area.
 * @param g the specified Graphics window
 */
public void paint(Graphics g) {
	g.setFont(font);
	g.setColor(Color.black);
	g.drawString(str, xPos, 50);
}

/***************************************************************************
 * This method prints to two screens:
 * The System out screen contains the original Type and original dimensions
 * The Applets text area contains the above plus calculated volume and area.
 */
private void printResults() {
	DecimalFormat precision2 = new DecimalFormat( "#0.00" );
	ivjTextArea1.append(testCircle.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testCircle.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testCircle.volume()) + "\n");
	ivjTextArea1.append("\n");
	testCircle.print();
	
	ivjTextArea1.append(testSquare.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testSquare.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testSquare.volume()) + "\n");
	ivjTextArea1.append("\n");
	testSquare.print();
	
	ivjTextArea1.append(testTriangle.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testTriangle.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testTriangle.volume()) + "\n");
	ivjTextArea1.append("\n");
	testTriangle.print();
  
	ivjTextArea1.append(testSphere.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testSphere.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testSphere.volume()) + "\n");
	ivjTextArea1.append("\n");
	testSphere.print();
	
	ivjTextArea1.append(testCube.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testCube.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testCube.volume()) + "\n");
	ivjTextArea1.append("\n");
	testCube.print();
	
	ivjTextArea1.append(testCylinder.toString());
	ivjTextArea1.append("Area = \t" + precision2.format(testCylinder.area()) + "\n");
	ivjTextArea1.append("Volume = \t" + precision2.format(testCylinder.volume()) + "\n");
	ivjTextArea1.append("\n");
	testCylinder.print();
  
	      

}
}