Design and Analysis of Algorithm Lab 2 | Read Now

Design and Analysis of Algorithm Lab 2

2A] Design a superclass called staff with details as StaffId, Name, Phone, Salary. Extend this class by writing three sub-classes namely Teaching(domain, publications), Technical(skills), and Contract(period). Write a Java Program to read and display at least 3 staff objects of all the 3 categories.

2B] Write a Java class called the customer to store their name and date_of_birth. The date_of_birth format should be dd/mm/yyyy. Write methods to read customer data as <name, dd/mm/yyyy> and display as <name, dd, mm, yyyy> using StringTokenizer class considering the delimiter character as ” / “.

2A] – Program code

class Staff
{
	private int StaffId;
	private String Name;
	private String Phone;
	private long Salary;
	
	public Staff(int staffId,String name,String phone,long salary)
	{
		StaffId = staffId;
		Name = name;
		Phone = phone;
		Salary = salary;
	}
	public void Display()
	{
		System.out.print("\t"+StaffId+"\t"+Name+"\t\t"+Phone+"\t\t"+Salary);
	}
}

class Teaching extends Staff
{
	private String Domain;
	private int Publications;
	
	public Teaching(int staffId, String name, String phone,long salary, String domain, int publications)
	{
		super(staffId, name, phone, salary);
		Domain = domain;
		Publications = publications;
	}
	public void Display()
	{
		super.Display();
		System.out.print("\t\t"+Domain+"\t\t"+Publications+"\t\t"+"--"+"\t"+"--");
	}
}

class Technical extends Staff
{
	private String Skills;
	public Technical(int staffId, String name, String phone,long salary, String skills)
	{
		super(staffId, name, phone, salary);
		Skills = skills;
	}
	public void Display()
	{
		super.Display();
		System.out.print("\t\t--"+"\t\t"+"--"+"\t"+Skills+"\t"+"--");
	}
}

class Contract extends Staff
{
	private int Period;
	public Contract(int staffId, String name, String phone,	long salary, int period)
	{
		super(staffId, name, phone, salary);
		this.Period = period;
	}
	public void Display()
	{
		super.Display();
		System.out.print("\t\t--"+"\t\t"+"--"+"\t\t"+"--"+"\t"+Period);
	}
}

public class lab2a
{
	public static void main(String[] args)
	{
	Staff staff[]=new Staff[3];
	staff[0]=new Teaching(0001,"Narendr","271173",90000,"CSE",3);
	staff[1]=new Technical(0002,"Ara","271172",2000,"Server Admin");
	staff[2]=new Contract(0003,"Rahul","271174",9000,3);
	System.out.println("Staff ID\tName\t\tPhone\t\tSalary\t\tDomain\tPublication\tSkills\t\tPeriod");
	for(int i=0;i<3;i++)
	{
		staff[i].Display();
		System.out.println();
	}
	}
}

Output

2B] Program code

import java.util.Scanner;
import java.util.StringTokenizer;
class Customer
{
	private String name;
	private String date_of_birth;
	public Customer(String name, String date_of_birth)
	{
		super();
		this.name = name;
		this.date_of_birth = date_of_birth;
	}
	public Customer ()
	{
	}
	
	public void readData(String name, String date_of_birth)
	{
		this.name = name;
		this.date_of_birth = date_of_birth;
	}
	public void displayData()
	{
		StringTokenizer st=new StringTokenizer(this.date_of_birth,"/");
		System.out.print(this.name+",");
		while(st.hasMoreTokens())
		{
			System.out.print(st.nextToken()+",");
		}
	}
}

public class lab2b
{
	public static void main(String[] args)
	{
		Scanner in=new Scanner(System.in);
		System.out.println("Enter Name :-");
		String name=in.nextLine();
		System.out.println("Enter Date of birth:-");
		String date=in.next();
		Customer customer=new Customer();
		customer.readData(name, date);
		customer.displayData();
	}
}

Output