Cab CustomerService program

Author: VikramGujar

src/com/lab/jan_01/ArrayListSerialization.java

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+package com.lab.jan_01;
+
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.Serializable;
+import java.util.ArrayList;
+
+record Employee(Integer employeeId, String employeeName) implements Serializable 
+{	
+}
+
+
+public class ArrayListSerialization 
+{	
+	public static void main(String[] args) throws IOException 
+	{
+		ArrayList<Employee> listOfEmployees = new ArrayList<>();
+		listOfEmployees.add(new Employee(111, "A"));
+		listOfEmployees.add(new Employee(222, "B"));
+		listOfEmployees.add(new Employee(333, "C"));
+		listOfEmployees.add(new Employee(444, "D"));
+		listOfEmployees.add(new Employee(555, "E"));
+		
+		String filePath = "C:\\Users\\vikra\\OneDrive\\Desktop\\Lap-Programs\\Java_Problem_solving\\src\\com\\lab\\jan_01";
+		//Serialization
+		var fos = new FileOutputStream(filePath);
+		var oos = new ObjectOutputStream(fos);
+		
+		try(fos; oos)
+		{
+			oos.writeObject(listOfEmployees);
+			System.out.println("Object data stored successfully");
+		}
+		catch(Exception e)
+		{
+			e.printStackTrace();
+		}
+		
+		//De-Serialization
+		
+		var fin = new FileInputStream(filePath);
+		var ois = new ObjectInputStream(fin);
+		
+		try(fin; ois)
+		{
+			
+			ArrayList<Employee> empList = (ArrayList<Employee>) ois.readObject();
+			empList.forEach(System.out::println);
+			
+		}
+		catch(Exception e)
+		{
+			e.printStackTrace();
+		}
+		
+		
+	}
+
+}

src/com/lab/jan_03/CabCustomer.java

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+package com.lab.jan_03;
+
+public class CabCustomer 
+{
+
+	 private int custId; 
+	 private String customerName;
+	 private String pickupLocation;
+	 private String dropLocation;
+	 private int distance;
+	 private String phone;
+	
+	 
+	 public CabCustomer() {
+		super();
+		
+	}
+
+
+	public CabCustomer(int custId, String customerName, String pickupLocation, String dropLocation, int distance,
+			String phone) {
+		super();
+		this.custId = custId;
+		this.customerName = customerName;
+		this.pickupLocation = pickupLocation;
+		this.dropLocation = dropLocation;
+		this.distance = distance;
+		this.phone = phone;
+	}
+
+
+	public int getCustId() {
+		return custId;
+	}
+
+
+	public void setCustId(int custId) {
+		this.custId = custId;
+	}
+
+
+	public String getCustomerName() {
+		return customerName;
+	}
+
+
+	public void setCustomerName(String customerName) {
+		this.customerName = customerName;
+	}
+
+
+	public String getPickupLocation() {
+		return pickupLocation;
+	}
+
+
+	public void setPickupLocation(String pickupLocation) {
+		this.pickupLocation = pickupLocation;
+	}
+
+
+	public String getDropLocation() {
+		return dropLocation;
+	}
+
+
+	public void setDropLocation(String dropLocation) {
+		this.dropLocation = dropLocation;
+	}
+
+
+	public int getDistance() {
+		return distance;
+	}
+
+
+	public void setDistance(int distance) {
+		this.distance = distance;
+	}
+
+
+	public String getPhone() {
+		return phone;
+	}
+
+
+	public void setPhone(String phone) {
+		this.phone = phone;
+	}
+	 
+	 
+	 
+	 
+}
+/*
+Three classes are given to you, 
+CabCustomer
+CabCustomerService
+CabCustomerServiceTester
+
+
+Define the following in the class CabCustomer 
+private : custId int, customerName String, pickupLocation String,dropLocation String, distance int,phone String
+          Generate Getter/Setter for the all fields.
+          Implement the No Argument constructor.
+          Implement/Generate the parameterized constructor in the order as defined above, i.e.,  custId,Name,Pickup,Drop,Distance,Phone
+
+Define the following in the  class CabCustomerService and write logics in the following methods:
+private : Generic ArrayList to represent list of CabCustomers.
+public : addCabCustomer() : Add the customer object parameter to the ArrayList
+			    isFirstCustomer(): Check whether the customer object parameter is already existing in arrayList. 
+			    				
+Note : If phone number of a customer matches with any of the phone numbers of the array list, then consider it as a existing customer, otherwise consider the customer as new customer. 
+				 
+       calculateBill() should calculate and return the customer bill based on following rules
+       1) if the customer is new return 0;
+       2) if the customer's travel distance is below or equal    
+          to 4 kms then return 80 (Rs).
+       3) if the customer travel distance is above 4 kms calculate bill 80 + 6 per each km.
+		 Ex: Any distance for new customer return 0;
+		     distance 4 return 80
+                     distance 6 return 80 + 6 * 6;
+printBill() which should return the bill of the customer object parameter in the following format:
+
+            output : JOHN Please pay your bill of Rs.0.0
+	             SMITH Please pay your bill of Rs.180.0
+
+	Note : 
+	   Assume one customer books only one cab at a time.
+	   No charge for customer booking the cab for the first time.
+	   Customer's phone number is key to test a new customer or old customer.
+	   Distance should be treated as kilometers 				 
+				 
+A CabCustomerServiceTester is given with main() where you can create various objects and test them.
+*/

src/com/lab/jan_03/CabCustomerService.java

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+package com.lab.jan_03;
+
+import java.util.ArrayList;
+
+public class CabCustomerService 
+{
+
+	private  ArrayList<CabCustomer> CabCustomers;
+	
+	public CabCustomerService() {
+		super();
+		CabCustomers = new  ArrayList<CabCustomer>();
+	}
+
+
+
+	public void addCabCustomer(CabCustomer cbc)
+	{
+		CabCustomers.add(cbc);
+	}
+	
+	public boolean isFirstCustomer(CabCustomer cbc)
+	{
+		int count=0;
+		for(CabCustomer cc : CabCustomers)
+		{
+			if(cc.getPhone().equals(cbc.getPhone()))
+				count++;
+		}
+			return count==1;
+	}
+	
+	public double calculateBill(CabCustomer cbc)
+	{
+		if(isFirstCustomer(cbc)==true)
+			return 0.0;
+		if(cbc.getDistance()<4)
+			return 80;
+		if(cbc.getDistance()>4)
+			return 80 + (cbc.getDistance()-4)*6;
+		return 0.0;
+	}
+	
+	public void printBill(CabCustomer cbc)
+	{
+		System.out.println(cbc.getCustomerName()+" Please pay your bill of Rs."+calculateBill(cbc));
+	}
+}
+/*
+
+Define the following in the  
+class CabCustomerService and write logics in the following methods:
+private : Generic ArrayList to represent list of CabCustomers.
+public : addCabCustomer() : Add the customer object parameter to the ArrayList
+isFirstCustomer(): Check whether the customer object parameter is already existing in arrayList. 
+ 
+ 
+Note : If phone number of a customer matches with any of the phone 
+numbers of the array list, then consider it as a existing customer, 
+otherwise consider the customer as new customer. 
+
+calculateBill() should calculate and return the customer 
+bill based on following rules
+1) if the customer is new return 0;
+2) if the customer's travel distance is below or equal    
+to 4 kms then return 80 (Rs).
+3) if the customer travel distance is above 4 kms calculate bill 80 + 6 per each km.
+
+
+Ex: Any distance for new customer return 0;
+distance 4 return 80
+distance 6 return 80 + 6 * 6;
+printBill() which should return the bill of 
+the customer object parameter in the following format:
+
+output : JOHN Please pay your bill of Rs.0.0
+SMITH Please pay your bill of Rs.180.0
+
+Note : 
+Assume one customer books only one cab at a time.
+No charge for customer booking the cab for the first time.
+Customer's phone number is key to test a new customer or old customer.
+Distance should be treated as kilometers 				 
+
+ 
+ */

src/com/lab/jan_03/CabCustomerServiceMain.java

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+package com.lab.jan_03;
+
+public class CabCustomerServiceMain 
+{
+
+	public static void main(String[] args) 
+	{
+		CabCustomer cbc1 = new CabCustomer(111, "Vijay", "Ameerpet", "Begampet", 3, "98745 32728");
+		CabCustomer cbc2 = new CabCustomer(111, "Harun", "Ameerpet", "Aurangabad", 578, "81745 32428");
+
+		CabCustomerService cbcs = new CabCustomerService();
+		cbcs.addCabCustomer(cbc1);
+		cbcs.addCabCustomer(cbc2);
+		cbcs.printBill(cbc1);
+		cbcs.printBill(cbc2);
+		
+		System.out.println();
+		CabCustomer cbc3 = new CabCustomer(111, "Harun", "Ameerpet", "Aurangabad", 10, "81745 32428");
+		cbcs.addCabCustomer(cbc3);
+		cbcs.printBill(cbc3);
+		
+	}
+
+}
+/*
+
+Note : If phone number of a customer matches with any of the phone 
+numbers of the array list, then consider it as a existing customer, 
+otherwise consider the customer as new customer. 
+
+calculateBill() should calculate and return the customer 
+bill based on following rules
+1) if the customer is new return 0;
+2) if the customer's travel distance is below or equal    
+to 4 kms then return 80 (Rs).
+3) if the customer travel distance is above 4 kms calculate bill 80 + 6 per each km.
+Ex: Any distance for new customer return 0;
+distance 4 return 80
+distance 6 return 80 + 6 * 6;
+printBill() which should return the bill of the customer object parameter in the following format:
+
+output : JOHN Please pay your bill of Rs.0.0
+SMITH Please pay your bill of Rs.180.0
+
+Note : 
+Assume one customer books only one cab at a time.
+No charge for customer booking the cab for the first time.
+Customer's phone number is key to test a new customer or old customer.
+Distance should be treated as kilometers 				 
+
+A CabCustomerServiceTester is given with main() where you can create various objects and test them.
+*/