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- 1- Write a Java class that models a Vehicle. There are three types of vehicles (Sedan, SUV, Truck). Every vehicle object should also contain an instance variable that can be used to store the time at which the vehicle has entered the car parking building (Hint: use the java.util.Date class to represent the time). In addition to the constructors, you should provide the following methods: public double getDuration(Date exitTime) this method will return the duration (in minutes) from the time the vehicle entered the parking until the given exitTime. public String getType() this method will return either Sedan or SUV or Truck based on the vehicle type. public void setType(String type) this method will set the type of the vehicle to either Sedan or SUV or Truck. public void setEntryTime(Date entryTime) this method will set the time at which the vehicle has entered the parking.The class Animal has a constructor that takes one int argument. Which of the following is a valid statement that declares and creates an instance of an Animal in a program? Animal elephant = new Animal(10); Animal elephant = new(10); Animal elephant = new Elephant(10); Animal elephant = newAnimal(10); Assuming that x, y, and z are integer variables, which of the following expressions are equivalent to each other I. ( x == y && x != z ) || (x != y & & X == z ) II. ( x y || x == z ) && ( x != y %3D33= || x != z ) III. ( x == y ) ( x == z ) == O1, II, and III O Il and III onlyCode In Java NetBeans Q: Create an Inventory system program which has the following classes: A) . A Date class that includes three instance variables, a month, a day, and an year. Provide a constructor that initializes the three instance variables, validating the values. Provide a toString method that displays the day, month, year separated by the forward slash(/).
- Q 2: Team.java You are writing a program to keep track of a team sport. Write a class, Team.java, that has the following: * two private instance variables: a String named color and an int named score. * a default constructor with no parameters that initializes color to "Red" and score to zero. * a constructor that takes two parameters (one for each instance variable) and sets the values of the instance variables. * a public getter and setter method for each instance variable. * a toString method that returns the color and score in the following format: "Red Team with 0 points."Design a class named Rectangle to represent a rectangle. The class must have the following: • double data fields named width and height. The default values are 1 for both width and height A no-argument constructor that creates a default bag. A constructor that creates a rectangle with the specified width and height A getParameter() method to return the perimeter. • A getArear() method to return the area of the Rectangle. Create two Rectangle objects. One with width 4.0 and height 10.0. The other object has width 6.3 and height 10.5.Internally your program should have two Java classes: ValidatorNumeric (superclass) ValidatorString (subclass) The subclass ValidatorString extends ValidatorNumeric class, forming a hierarchy of two classes. Add a separate main class with the main() method to test all public methods in both ValidatorNumeric and ValidatorString classes. The main() method should create the necessary objects and run the user interaction as shown above. The ValidatorNumeric class is responsible for capturing user prompt and a range of valid numeric inputs. Its methods display the prompt and accept input from the user. It should provide the following public interface: // Default constructor ValidatorNumeric() // Specific constructor taking params as follows: ValidatorNumeric( String prompt, int min, int max ) // Another specific constructor taking params as follows: ValidatorNumeric( String prompt, double min, double max ) // Method that shows user prompt and gets an int from the user: public…
- Assume the following Window class has been defined: public class Window { private int width; private int height; private int xPos; private int yPos; // The rest of the class is not shown… } Define an equals method for the Window class. Two Window objects will be considered equal if their width fields are equal, their height fields are equal, their xPos fields are equal, and their yPos fields are equal.Java program: Write a class called YourFirstNameLine that represents a line segment between two Points. Your Line objects should have the following method: public YourFirstNameLine (Point p1, Point P2): construct a new Line that contains the given two Points public Point getStartPoint(): return this Line’s first endpoint public Point getEndPoint(): return this Line’s second endpoint public String toString(): return a String representation of this Line, such as “[(2,3), (4,7)]" public double getSlope(): return the slope of this Line. The slope of a line between points (x1, y1) and (x2, y2) is equal to (y2-y1)/(x2-x1). If x2 equals x1, the denominator is zero and the slope is undefined, so you may return a zero in this case public void draw (Graphics g): draw a line in a DrawingPanel Write a client class called YourFirstNameLineTest with main method to test your Line class. In the main method, you need create a line object with the last four numbers of your Panther ID. For…QUESTION 4 For the question below. use the following class definition: import java.text.Decimalformat: public clann Goalie private String name: private int jerseyiunber: private double savePercentage: private int saves: public Goalie (String newitame, int newJerseythumber, double newsaveFercentage, int newsaves) name - newdlane: terseytunber - newJerseyurber: savepercentage = newsaveercentage: aavea - newsavea; public String tostring) DecimalFormat df - new DecimalFormat ("+0.00"): return name + "\a" + jerseyllurter + "\n" + df.fornat (savePercentage) + "\n". aaves Another method that might be desired is one that updates the Goalie's Name. This method will receive a new Goalie's Name and set it to the Goalie's current name. Which of the following methods would accomplish this? O A public 1tring updatesoalieName) return name; O B. public void updateGoalieName i) name; public updatedoalieName (int newdoalieltame ) name = newGoalieName; O publie void update GoalieName (String…
- PLEASE TYPE ONLY*** JAVA PROGRAMMING Program #2: Write a class called YourFirstNameLine that represents a line segment between two Points. Your Line objects should have the following methods: public YourFirstNameLine (Point p1, Point P2): construct a new Line that contains the given two Points public Point getStartPoint(): return this Line’s first endpoint public Point getEndPoint(): return this Line’s second endpoint public String toString(): return a String representation of this Line, such as “[(2,3), (4,7)]” public double getSlope(): return the slope of this Line. The slope of a line between points (x1, y1) and (x2, y2) is equal to (y2-y1)/(x2-x1). If x2 equals x1, the denominator is zero and the slope is undefined, so you may return a zero in this case public void draw (Graphics g): draw a line in a DrawingPanel. Write a client class called YourFirstNameLineTest with main method to test your Line class. In the main method, you need create a line object with the last four…FOR JAVA Create a class named Product that has ID, price and stock as fields. This class must have two constructors; one constructor must take all its fields as parameters, second constructor must take ID and price as parameters and set stock to 0. Also implement the following methods: • String toString(): Returns a brief summary about the object. • void sell(int): Takes a parameter that represents the amount to sell. Checks if stocks are sufficient. If so, it updates the stock and prints the total price. Else it prints a warning to user. Create 3 instances of Product class and test your methods.public class Cat { private int age; public Cat (int a) { age = а; } public int getAge() { return a; } } Which of the following best explains why the getAge method will NOT work as intended? The instance variable age should be returned instead of a, which is local to the constructor. The variable age is not declared inside the getAge method. The getAge method should be declared as private. The getAge method should have at least one parameter.