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Lab7- Abstract Classes and Interfaces/src/unl/cse/company/CompanyList.java

+package unl.cse.company;
+
+import java.util.ArrayList;
+
+public class CompanyList<T> {
+
+	public CompanyList() {
+		tarray = new ArrayList<T>();
+	}
+
+	private ArrayList<T> tarray;
+
+	public void addToArray(T t) {
+		tarray.add(t);
+	}
+
+	//TODO: Add a toString method for employees for displaying (optional) 
+	public void print() {
+		System.out.println(tarray.toString());
+	}
+
+}

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/CompanyPortfolio.java

+package unl.cse.company;
+
+public interface CompanyPortfolio {
+	public void computeProductivity();
+}

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/Employee.java

+package unl.cse.company;
+
+public abstract class Employee  implements Serializable,CompanyPortfolio{
+	
+	int id;
+	String firstName;
+	String lastName;
+	String title;
+	
+	/* TODO - Do you need any more fields here ? (e.g netPay, grossPay etc)
+	 *  	    
+	 */
+
+	/* TODO Add other methods (e.g getName(), computeSalary()) 
+	 * 		Which of them do you think should be abstract ?
+	 */
+	
+	/* TODO What other subclasses do you need ? (e.g Hourly, Temporary etc)
+	 * 		What methods can be implemented there ?  (e.g hourlyPay/overtimePay?, getpay? getName? etc) 
+	 * 		Which of them can be abstract here ?*/
+
+	public Employee(String firstName, String lastName) {
+		this.firstName = firstName;
+		this.lastName = lastName;
+	}
+	public int getId() {
+		return id;
+	}
+	public void setId(int id) {
+		this.id = id;
+	}
+	public String getFirstName() {
+		return firstName;
+	}
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+	public String getLastName() {
+		return lastName;
+	}
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+	public String getTitle() {
+		return title;
+	}
+	public void setTitle(String title) {
+		this.title = title;
+	}
+	
+
+}

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/GenericsDemo.java

+package unl.cse.company;
+
+public class GenericsDemo {
+
+	public static void main(String args[]) {
+
+		// TODO: Make 2 different types of employees (change as appropriate to your design)
+		Employee e1 = new Permanent("",""); 
+		Permanent e2 = new Permanent("","");
+		//Temporary e3 = new Temporary("E","F");
+		
+		// TODO: Add them to non-generic company c1 and generic company c2.
+
+		CompanyList c1 = new CompanyList();
+		//c1.addToArray(e1);
+		c1.print();
+
+		CompanyList<Permanent> c2 = new CompanyList<Permanent>();
+		c2.print();
+
+		// TODO: Create a product and try adding to c1 and c2
+
+	}
+
+}

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/PayrollDemo.java

+package unl.cse.company;
+
+
+public class PayrollDemo {
+
+	public static void main(String[] args) {
+	
+		//TODO - Create two different employees of each type , update their details 
+		// and print their names and salaries(change as appropriate to your design)
+		Employee employee1 = new Temporary("John","Smith"); 
+		Employee employee2 = new Permanent("Richard","Feymann");
+ 
+
+		printSalary(employee1);
+		printSalary(employee2);
+				
+	}
+
+	public static void printSalary(Employee e) {
+		System.out.println("Salary of " + e.getName() + " is: "
+				+ e.getPay());
+	}
+
+}
\ No newline at end of file

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/PortfolioDemo.java

+package unl.cse.company;
+
+import java.io.File;
+import java.io.IOException;
+
+public class PortfolioDemo {
+
+	public static void main(String[] args) {
+
+	//TODO: Create employees and products with details, export to JSON 
+	// and compute their productivity (change as appropriate to your design)
+	Serializable serializableEmployee = new Temporary("Smith","John"); 
+	Serializable serializableProduct = new Product();
+
+
+	try {
+    	serializableEmployee.serializeToJSON(serializableEmployee, new File("data/Employee.json"));
+    	serializableProduct.serializeToJSON(serializableProduct, new File("data/Product.json"));
+	} catch (IOException e) {
+		e.printStackTrace();
+	}
+	
+	CompanyPortfolio customerPortfolio = (CompanyPortfolio) serializableEmployee;
+	CompanyPortfolio productPortfolio = (CompanyPortfolio) serializableProduct;
+	customerPortfolio.computeProductivity();
+	productPortfolio.computeProductivity();
+	
+}
+}

Lab7- Abstract Classes and Interfaces/src/unl/cse/company/Serializable.java

+package unl.cse.company;
+
+import java.io.File;
+import java.io.IOException;
+
+public interface Serializable {
+	
+	public void serializeToJSON(Serializable jsonSerializable, File file) throws IOException;
+
+}