oo-programming-java-ex-ans.md

1. Person.java

   public class Person {
       private String name;
       private int age;
   
       public Person(String name, int age) {
           this.name = name;
           this.age = age;
       }
   
       public String getName() {
           return name;
       }
   
       public void setName(String name) {
           this.name = name;
       }
   
       public int getAge() {
           return age;
       }
   
       public void setAge(int age) {
           this.age = age;
       }
   }

2. Circle.java

   public class Circle {
       private double radius;
       private double area;
   
       public Circle(double radius) {
           this.radius = radius;
           this.area = Math.PI * radius * radius;
       }
   
       public double getRadius() {
           return radius;
       }
   
       public void setRadius(double radius) {
           this.radius = radius;
           this.area = Math.PI * radius * radius;
       }
   
       public double getArea() {
           return area;
       }
   }

3. Student.java

   public class Student {
       private int id;
       private String name;
       private double score;
   
       public Student(int id, String name, double score) {
           this.id = id;
           this.name = name;
           this.score = score;
       }
   
       public int getId() {
           return id;
       }
   
       public void setId(int id) {
           this.id = id;
       }
   
       public String getName() {
           return name;
       }
   
       public void setName(String name) {
           this.name = name;
       }
   
       public double getScore() {
           return score;
       }
   
       public void setScore(double score) {
           this.score = score;
       }
   }

4. BankAccount.java

   public class BankAccount {
       private int accountNumber;
       private String name;
       private double balance;
   
       public BankAccount(int accountNumber, String name, double balance) {
           this.accountNumber = accountNumber;
           this.name = name;
           this.balance = balance;
       }
   
       public int getAccountNumber() {
           return accountNumber;
       }
   
       public void setAccountNumber(int accountNumber) {
           this.accountNumber = accountNumber;
       }
   
       public String getName() {
           return name;
       }
   
       public void setName(String name) {
           this.name = name;
       }
   
       public double getBalance() {
           return balance;
       }
   
       public void setBalance(double balance) {
           this.balance = balance;
       }
   }

5. Rectangle.java

   public class Rectangle {
       private double length;
       private double width;
   
       public Rectangle(double length, double width) {
           this.length = length;
           this.width = width;
       }
   
       public double getLength() {
           return length;
       }
   
       public void setLength(double length) {
           this.length = length;
       }
   
       public double getWidth() {
           return width;
       }
   
       public void setWidth(double width) {
           this.width = width;
       }
   }

6. Movie.java

   public class Movie {
       private String name;
       private String director;
       private String[] actors;
   
       public Movie(String name, String director, String[] actors) {
           this.name = name;
           this.director = director;
           this.actors = actors;
       }
   
       public String getName() {
           return name;
       }
   
       public void setName(String name) {
           this.name = name;
       }
   
       public String getDirector() {
           return director;
       }
   
       public void setDirector(String director) {
           this.director = director;
       }
   
       public String[] getActors() {
           return actors;
       }
   
       public void setActors(String[] actors) {
           this.actors = actors;
       }
   }

7. Book.java

   public class Book {
       private String title;
       private String author;
       private String publisher;
   
       public Book(String title, String author, String publisher) {
           this.title = title;
           this.author = author;
           this.publisher = publisher;
       }
   
       public String getTitle() {
           return title;
       }
   
       public void setTitle(String title) {
           this.title = title;
       }
   
       public String getAuthor() {
           return author;
       }
   
       public void setAuthor(String author) {
           this.author = author;
       }
   
       public String getPublisher() {
           return publisher;
       }
   
       public void setPublisher(String publisher) {
           this.publisher = publisher;
       }
   }

8. Computer.java

   public class Computer {
       private String brand;
       private String model;
       private double screenSize;
   
       public Computer(String brand, String model, double screenSize) {
           this.brand = brand;
           this.model = model;
           this.screenSize = screenSize;
       }
   
       public String getBrand() {
           return brand;
       }
   
       public void setBrand(String brand) {
           this.brand = brand;
       }
   
       public String getModel() {
           return model;
       }
   
       public void setModel(String model) {
           this.model = model;
       }
   
       public double getScreenSize() {
           return screenSize;
       }
   
       public void setScreenSize(double screenSize) {
           this.screenSize = screenSize;
       }
   }

9. Car.java

   public class Car {
       private String brand;
       private String model;
       private String color;
   
       public Car(String brand, String model, String color) {
           this.brand = brand;
           this.model = model;
           this.color = color;
       }
   
       public String getBrand() {
           return brand;
       }
   
       public void setBrand(String brand) {
           this.brand = brand;
       }
   
       public String getModel() {
           return model;
       }
   
       public void setModel(String model) {
           this.model = model;
       }
   
       public String getColor() {
           return color;
       }
   
       public void setColor(String color) {
           this.color = color;
       }
   }

10. Person.java

    public class Person {
        private String name;
        private String address;
        private String phoneNumber;
    
        public Person(String name, String address, String phoneNumber) {
            this.name = name;
            this.address = address;
            this.phoneNumber = phoneNumber;
        }
    
        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 getPhoneNumber() {
            return phoneNumber;
        }
    
        public void setPhoneNumber(String phoneNumber) {
            this.phoneNumber = phoneNumber;
        }
    }