M255: -Oriented programming with
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’ s with their points.
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 of the employee [5 marks]
(d) Write a public instance method for the Marketing class called: getPoints (String ). This method returns the points of the specific 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 statements to do the followings: [3 marks]
• Declare and create an called myMarket of Marketing class
Marketing myMarket = new Marketing ();
• Use myMarket to call add() method and fill the collection
• Printout average of m255 .
• Printout the points of “faisal”
Question 3 [20 marks]
1. Write a 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
question 4 [15 marks]
1. Declare and create a list s.
2. Print the size of the list.
3. Adding the following element into s: "ahmed", "khaled", and "ali"
4. Print s elements using for each statement
5. Print s elements using one statement:
6. Add another element "ahmed" in position 1
7. Find the index of "ahmed "
8. Remove "ali" from s.
9. Sort s
10. Print s in reverse order.
11. Print the s in random way
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
حل واجب M255 حصريا 0544321455 - 00966544321455 - [email protected]
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