a.)Write a Java statement that increments the value of count by 1. b.) Write a Java statement that outputs the value of count. C.) Write the 6 definition of constructors and the methods of the class MyClass as described in its definition.
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a.)Write a Java statement that increments the value of count by 1.
b.) Write a Java statement that outputs the value of count.
C.) Write the 6 definition of constructors and the methods of the class MyClass as described in its definition.
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- 2. Consider the following class definitions: public class BClass } private int x; public void set(int a) } X a; { public void print() } System.out.print(x); { { public class DClass extends BClass } private int y; public void set(int a, int b) } //Postcondition: x =a; y=Db; { public void print( ) {.…} a. Write the definition of the print method of DClass that overrides it. b. Write the definition of the method set of the class DClass.public class Father { public String name; public int age; // customer name Father(){ name=”Hassan”; age=50;} public void display(){ System.out.println(“Name:”+name); System.out.println(“Age:”+age); } } 1. Based on Figure 3, create a class named Child that inherits the Father class. Declare an instance name location (String) for class Child. 2. Define a constructor in class Child and give an appropriate initial values for the instance (name, age, location). 3. Define a method display () in class Child, execute the display ( ) method in superclass using the keyword super. Method display ( ) in class Child should print the information of name, age and location 4. Create other class named Main for the main method and create 2 objects for the 2 classes (Father and Child). Then execute the display ( ) method for Father and Child. Example of the output as in Figure 4: Father's info: Name: Josh Age: 50 Child's info: Name: Christy Age: 20 Location:…Consider the following class: public class theClass { private double value; private string str; public static int count; public theClass () { } public theClass (double d, int, x, String s) { } public void print() { } public static void incrementCount() { } } a) How many members do class theClass have? b) Compare the purpose of the two constructors. c) Use the reference this to write the definition of a method print( )to output the value of the instance data members separated by commas. d) Write a statement to create an object myClass of the class theClass and initialise the instance variables to 5, 10.75 and the string Class. e) Write a definition (heading) for a copy constructor for the class.
- Design/code/test a Java program containing an abstract the class absWelcome. This class should contain: 1. A public abstract void method (you name it) that is empty 2. A public regular method (you name it) that prints "Welcome to " Next, create a subclass clsHello that extends absWelcome. This class should contain: • A public regular method (you name it) that prints "Java Programming" Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new object reference to: 1. Output "Welcome to " from the abstract class 2. Output "Java Programming" from the subclass Your output should resemble that shown below >sh -c javac -classpath -type f-name '*.java') java -classpath :targe Welcome to Java Programmingpublic class date { private int day; // from 1 to 31 private int month; // from 1 to 12 private int year; // from 2000 upwards public void advance (); // move to next day }; Implement a constructor that initializes new objects of date class to be set to the 1st of January 2000. Implement setters for day, month, and year. Implement the advance method, which moves to the next day, ensuring that all data members are updated appropriately.Determine if this statement is true or false Take the following method, which is defined in some class: class SomeClass: SomeBaseClass{ private int override MyMethod() { //do something.... } } This is an example of run time polymorphism, as MyMethod is being redefined in the child class by the override keyword.
- For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)Assume the Book class is defined as follows: public class Book{ enum Type type {FICTION,NON_FICTION}; public int isbn; public Type type; Book(int isbn, Type type){ this.isbn = isbn; this.type = type; }} Define filterBooksOfGivenType method that shall return ArrayList of Book of the type specified in parameter.Define a class Student to create Student Objects. The class defines two variables for its objects: name (String ) and average (double). The class provides a constructor with arguments and includes the following object methods to do the following: - public void print() : prints the Student data - public void setAverage(double newAvergae): sets the student average with a new value. Define a class StudentTest In the main method, create three student objects (Ali, Rami, Khalid) with initial average 60 for each one. - Call the setAverage method on each created student to change their average with a randomly value (hint: use Math.random( ) method to generate average value in range [0..100]). - Print the name of the student who's the maximum average. hint: you should compare between the Student objects according to their average.
- The picture is code tester public class WordVowels { // Step 2: Declare an instance variable to store the text // Step 3: Write the following constructor including // possible Javadoc tags /** * Constructs a Word object by initializing the * instance variable to the passed in parameter. * */ // Step 4: Write method getVowels() including // possible Javadoc tags /** * Gets all vowels of the stored text and returns * "" if the stored test does not have any vowels. * */ // Step 5: Write method vowelsFirst() including // possible Javadoc tags /** * Gets a string containing all vowels of the stored text * followed by all other chars of the stored text. * */ // Step 6: Write method longestVowelGroup() including // possible Javadoc tags /** * Gets the longest vowel group and returns "" * if the stored text does not have any vowels. * */…2. Consider the following class definitions: public class BClass private int x; public void set(int a) { x = a; } public void print() System.out.print(x); } public class DClass extends BClass { private int y; public void set(int a, int b) //Postcondition: x =a; y=b; } public void print( ) {..} a. Write the definition of the print method of DClass that overrides it. b. Write the definition of the method set of the class DClass. ||/** NoParking models a No Parking sign */ public class NoParking { //-----------Start below here. To do: approximate lines of code = 15 // 1. Write the class so that it works as expected with the unit tester. private String startTime; private String endTime; /** Constructs a NoParking object with a default time */ public NoParking(){ startTime = "0:00"; endTime = "23:59"; } /** Sets the start time @param the start time */ public void setStartTime(String start){ startTime = start; } /** Sets the end time @param the end time */ public void setEndTime(String end){ endTime = end; } /** Reverses the times */ /** Returns the string for no parking @return the string for no parking */ } //-----------------End here. Please do not remove this…