حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
 

M255: Object-Oriented programming with Java











1- How many concrete classes are there? List them




2- How many interface are there? List them
3- What are the attributes and the protocol of Employee






4- What are the attributes and the protocol of FullTimeEmployee?






5- What are the attributes and the protocol of PartTimeEmployee?






6- What is the relationship between Employee and PartTimeEmployee?




What is the keyword is used to represent this kind of relationship?


7-What is the relationship between PartTimeEmployee and Perfectly?






What is the keyword is used to represent this kind of relationship?


8-Does toString method in FullTimeEmployee overload or override the toString() method in Employee?




9- Write the header of the abstract class Employee




10- Write the header of the class PartTimeEmployee


11- Write the header of the class FullTimeEmployee
12- Write the header and the body of Perfectly






Question 2 [25 marks]
The following table represents a part of a marketing list showing various employees’ names with their points.


Name Grade
“ali” 182
“ahmed” 270
“khaled” 195
“faisal” 188






This table is to be implemented and managed by an instance of a class called Marketing.


(a) Write a class header of the class Marketing and write a single attribute: index that will reference a collection suitable for holding the data in table1. [2 marks]








(b) Write a zero argument constructor for Marketing that initializes index to an instance of a suitable empty collection class. [2 marks]






















(c) Write a public instance method called add() for the Marketing class that takes no arguments and returns no value. This method should simply fill the index with the data as in the table, it should ask the user to add employees until he entered Zero as the name of the employee [5 marks]








(d) Write a public instance method for the Marketing class called: getPoints (String name). This method returns the points of the specific name that are found in the collection [5 marks]








(e) Write a public instance method for the Marketing class called printList(). This method prints the index entries. Use for-each statement. [3 marks]






(f) Write a public instance method for the Marketing class called average(). This method returns average of grades of the index entries. [5 marks]




(g) Write Java statements to do the followings: [3 marks]
• Declare and create an object called myMarket of Marketing class


• Use myMarket object to call add() method and fill the collection


• Printout average of m255 object.




• Printout the points of “faisal”










Question 3 [20 marks]
1. Write a Java code to do the followings:
2. Declare and create an integer Set called number.


3. Insert 10 values in the set






4. Printout the size of the set
5. Find average of numbers and print it




6. Find max of the numbers and print it


7. Print elements of the set using foreach


8. Test if 10 is an element of the set
9. Printout the first and the last number in the set
Aquestion 4 [15 marks]
1. Declare and create a list names.
2. Print the size of the list.
3. Adding the following element into names: "ahmed", "khaled", and "ali"
4. Print names elements using for each statement
5. Print names elements using one statement:
6. Add another element "ahmed" in position 1
7. Find the index of "ahmed "
8. Remove "ali" from names.
9. Sort names
10. Print names in reverse order.
11. Print the names in random way

حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]
حل واجب M255 قبل التسليم 00966544321455 بدون تكرار 0544321455 [email protected]