Directory rename

5 files changed, 167 insertions, 0 deletions

diff --git a/oop/05-polymorphism/.gitignore b/oop/05-polymorphism/.gitignore
new file mode 100644
index 0000000..6b468b6
--- /dev/null
+++ b/oop/05-polymorphism/.gitignore
@@ -0,0 +1 @@
+*.class
diff --git a/oop/05-polymorphism/Customer.java b/oop/05-polymorphism/Customer.java
new file mode 100644
index 0000000..56b0f7b
--- /dev/null
+++ b/oop/05-polymorphism/Customer.java
@@ -0,0 +1,60 @@
+public class Customer {
+	private int customerNumber;
+	private String name;
+	private String address;
+	private String phone;
+	private String mobile;
+
+	public Customer() {
+	}
+
+	public Customer(int customerNumber, String name, String address,
+			String phone, String mobile) {
+		this.customerNumber = customerNumber;
+		this.name = name;
+		this.address = address;
+		this.phone = phone;
+		this.mobile = mobile;
+	}
+
+	public int getCustomerNumber() {
+		return customerNumber;
+	}
+
+	public void setCustomerNumber(int customerNumber) {
+		this.customerNumber = customerNumber;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public String getAddress() {
+		return address;
+	}
+
+	public void setAddress(String address) {
+		this.address = address;
+	}
+
+	public String getPhone() {
+		return phone;
+	}
+
+	public void setPhone(String phone) {
+		this.phone = phone;
+	}
+
+	public String getMobile() {
+		return mobile;
+	}
+
+	public void setMobile(String mobile) {
+		this.mobile = mobile;
+	}
+
+}
diff --git a/oop/05-polymorphism/CustomerApp.java b/oop/05-polymorphism/CustomerApp.java
new file mode 100644
index 0000000..79e1c31
--- /dev/null
+++ b/oop/05-polymorphism/CustomerApp.java
@@ -0,0 +1,46 @@
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+
+public class CustomerApp {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		List list = new LinkedList();
+		
+		Customer c = new Customer(1, "Kamal", "Nugegoda", "123456", "654321");
+		list.add(c);
+
+		c = new Customer(2, "Nimal", "Colombo", "2234343", "2343433");
+		list.add(c);
+
+		c = new PremiumCustomer(1, "Sunil", "Kohuwala", "23443434", "9888234",
+				"a", "Give him whatever he ask");
+		list.add(c);
+		
+		list.add(new Date());
+		
+		Iterator itr = list.iterator();
+		
+		CustomerDetailsFormatter formatter = new CustomerDetailsFormatter();
+		
+		while (itr.hasNext()) {
+			Customer customer = (Customer) itr.next(); // Convert "java.lang.Object" to "Customer"
+			String formattedString = formatter.getFormattedDescription(customer);
+			System.out.println(formattedString);
+		}
+
+		/*
+		Account a1 = new SavingsAccount(); // Coercion (implicit conversion) 
+		a1.accountClassMethod();
+		
+		Account a1 = someMethod();
+		SavingsAccount sa = (SavingsAccount) a1; // Down casting
+		sa.savingsAccountClassMethod();
+		*/
+	}
+}
diff --git a/oop/05-polymorphism/CustomerDetailsFormatter.java b/oop/05-polymorphism/CustomerDetailsFormatter.java
new file mode 100644
index 0000000..d2640e0
--- /dev/null
+++ b/oop/05-polymorphism/CustomerDetailsFormatter.java
@@ -0,0 +1,17 @@
+public class CustomerDetailsFormatter {
+	
+	/**
+	 * Format the customer object according to some needs
+	 * @param c
+	 * @return
+	 */
+	public String getFormattedDescription(Customer c) {
+		String buffer = "Customer description: \n";
+		buffer += " Number: " + c.getCustomerNumber();
+		buffer += " Name: " + c.getName();
+		buffer += " Address: " + c.getAddress();
+		buffer += "\n";
+
+		return buffer;
+	}
+}
diff --git a/oop/05-polymorphism/PremiumCustomer.java b/oop/05-polymorphism/PremiumCustomer.java
new file mode 100644
index 0000000..a098af5
--- /dev/null
+++ b/oop/05-polymorphism/PremiumCustomer.java
@@ -0,0 +1,43 @@
+public class PremiumCustomer extends Customer {
+	
+	private String category;
+	private String desction;
+	
+	
+	public PremiumCustomer() {
+	}
+	
+	public PremiumCustomer(int customerNumber, String name, String address,
+			String phone, String mobile) {
+		super(customerNumber, name, address, phone, mobile);
+	}
+
+	
+	public PremiumCustomer(int customerNumber, String name, String address,
+			String phone, String mobile, String category, String desction) {
+		super(customerNumber, name, address, phone, mobile);
+		this.category = category;
+		this.desction = desction;
+	}
+
+	public PremiumCustomer(String category, String desction) {
+		super();
+		this.category = category;
+		this.desction = desction;
+	}
+
+	public String getCategory() {
+		return category;
+	}
+	public void setCategory(String category) {
+		this.category = category;
+	}
+	public String getDesction() {
+		return desction;
+	}
+	public void setDesction(String desction) {
+		this.desction = desction;
+	}
+
+	
+}