Lab Description:
This lab is similar to the previous lab 4, where a hierarchy is formed where “MobileDevice” is the superclass, “Tablet” and “SmartPhone” are subclasses of “MobileDevice”, and then “iPad” branches off from the subclass of “Tablet” and finally “Android” branches off the subclass “SmartPhone”. Abstract classes are introduced in this lab which, provide a superclass from which other classes can inherit and thus share a common design. Concrete classes are also implemented for all the classes that inherited “MobileDevice”, these classes provide implementations of every method they declare (including those inherited). An array is also implemented the size is specified by the for loop in the application portion.

Code:

package Lab5;

public class DeviceApp {
	/**

	 * @param args

	 */

	public static void main (String[] args) {

		// TODO Auto-generated method stub

		//Array locations being assigned

		MobileDevice[] mobileDevices = new MobileDevice[6];

		mobileDevices[0]	=	new Tablet();

		mobileDevices[1]	=	new iPad();

		mobileDevices[2]	=	new KindleFire();

		mobileDevices[3]	=	new SmartPhone();

		mobileDevices[4]	=	new Android();

		mobileDevices[5]	=	new WindowsPhone();
		//Array size is 6 since arrays start at 0

		for (int i = 0; i < 6; i++) {
			System.out.println("This device is: " + mobileDevices[i].getDeviceType());
		}
	}
}
******************************************************************************************************
package Lab5;

public abstract class MobileDevice {

	private String deviceType = "Mobile Device";

	public abstract void setDeviceType();

	public String getDeviceType() {
		// TODO Auto-generated method stub
		return deviceType;
	}
	@Override
	public String toString() {
		return deviceType;
	}
}
*******************************************************************************************************
package Lab5;

public class Tablet extends MobileDevice {

	private String deviceType;

	public Tablet(){
		deviceType= "Tablet";
	}

	@Override
	public String getDeviceType() {
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "Tablet";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}
********************************************************************************************************
package Lab5;

public class iPad extends Tablet{

	private String deviceType;

	public iPad() {
		deviceType = "iPad";

	}

	@Override
	public String getDeviceType() {
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "iPad";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}
*************************************************************************************************************
package Lab5;

public class KindleFire extends Tablet{

	private String deviceType ;

	public KindleFire(){
		deviceType= "KindleFire";
	}

	@Override
	public String getDeviceType() {
		deviceType = "KindleFire";
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "KindleFire";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}
***************************************************************************************************************
package Lab5;

public class SmartPhone extends MobileDevice{

	private String deviceType ;

	public SmartPhone(){
		deviceType= "SmartPhone";
	}

	@Override
	public String getDeviceType() {
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "SmartPhone";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}
******************************************************************************************************************
package Lab5;

public class Android extends SmartPhone {

	private String deviceType ;

	public Android(){
		deviceType= "Android";
	}

	@Override
	public String getDeviceType() {
		deviceType = "Android";
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "Android";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}
*********************************************************************************************************************
package Lab5;

public class WindowsPhone extends SmartPhone {

	private String deviceType ;

	public WindowsPhone(){
		deviceType= "WindowsPhone";
	}

	@Override
	public String getDeviceType() {
		deviceType = "WindowsPhone";
		return deviceType;
	}

	@Override
	public void setDeviceType() {
		// TODO Auto-generated method stub
		deviceType = "WindowsPhone";
	}

	@Override
	public String toString() {
		return deviceType;
	}
}






































Screenshots: