السلام علبكم ريد مساعد في حل مسئلتين صعبني شوي بليز ...

 

1. Write Java code for the following scenario:

a. Create class to represent a Student details StudentID, StudentName, ModuleName, and StudentMarks. Choose appropriate data type for each attribute.

b. Implement a constructor to initialize all the member variables from given parameters.

c. Methods:  void Display() to display the all the details of the Student.

 void UpdateMarks(double MK) to update StudentMarks of the student.

d. Write a custom exception for the following situations while updating marks

 When Student marks are updated with a value less than or equal to zero a custom exception must be raised with the following message “Student Marks cannot be zero/ less than zero”.

 When Student marks are updated with a value greater than hundred a custom exception must be raised with the following message “Student Marks cannot be greater than hundred”.

e. invoke both custom exceptions in UpdateMarks methodf. Implement a class MainClass hosting Main

 

 Create object of Student class. Call all the methods in such a way that all custom exceptions are raised.

 

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2. Write Java code for the following scenario: a. Create class to represent a LibraryMember details MemberID, MemberName, Department, and TotalBooks.

Choose appropriate data type for each attribute.

b. Implement a constructor to initialize all the member variables from given parameters.

c. Methods:  void Display() to display the all the details of the Student.

d. Write a custom exception for the following situations while issue and returning of books

 When Member is issued books TotalBooks attribute is updated by adding number of books issued to TotalBooks. After addition if TotalBooks is 6 or more a custom exception must be raised with the following message “Member cannot be issued more than five books”.

 When Member is returns a book TotalBooks attribute is updated by subtracting the number of books from the TotalBooks. If after subtracting TotalBooks reduces to Zero a custom exception must be raised with the following message “Member has returned all the books”.

e. Assume the following methods for the above exceptions.

 void issue(int NoofBooks).

 void Return(int NoofBooks).

f. Implement a class MainClass hosting Main(): 

 Create object of Student class. Call all the methods in such a way that all custom exceptions are raised.

هذا الكود يحقق ما سألت عنه في السؤال الأول بكل فروعه ووضعت تعليق توضيحي في بداية كل method

import javax.swing.JOptionPane;

public class Student extends Exception
{
   /* a. Create class to represent a Student details StudentID, 
    * StudentName, ModuleName, and StudentMarks 
    * Choose appropriate data type for each attribute.*/ 
    int studentID;
    String studentName;
    Double studentMarks;
    String moduleName;
      
 /* b. Implement a constructor to initialize all the member variables from given parameters.*/
  public Student(int studentID,String studentName,Double studentMarks,String moduleName) 
    {
        this.studentID=studentID;
        this.studentName=studentName;
        this.studentMarks=studentMarks;
        this.moduleName=moduleName;
   }

  /* c. Methods: void Display() to display the all the details of the Student*/  
    public void displayDetails()
    {
     System.out.println("The Student Id is " + studentID);
     System.out.println("The Student Name is " + studentName);
     System.out.println("The Student markrs is " + studentMarks);
     System.out.println("The Student Module is " + moduleName);
   } 
    private Student() { }
    public Student(String message) 
    {
      super(message);
    } 
   /* void UpdateMarks(double MK) to update StudentMarks of the student.
    d. Write a custom exception for the following situations while updating marks
     When Student marks are updated with a value less than or equal to zero 
    a custom exception must be raised with
     the following message “Student Marks cannot be zero/ less than zero”.
     When Student marks are updated with a value greater than hundred a 
    custom exception must be raised with 
     the following message “Student Marks cannot be greater than hundred”.*/  
  
  
   public void updateMarks(double MK)  
   {
      Student student = new Student();
      student.exceptionLessupdateMarks(MK);
      student.exceptionGreatUpdateMarks(MK);
   }
  /*Custom Exception For Mark Less Than Zero*/
  public void exceptionLessupdateMarks(double MK)   
    {   
         try
         {
             if(MK<=0)
             {
                  throw new Student();
             }
         }
         catch(Student ex)
         {
              System.out.println("Student Marks cannot be zero/ less than zero");
         }
     }
  
    /*Custom Exception For Mark Greater Than hundred*/
    public void exceptionGreatUpdateMarks(double MK)   
      {   
           try
           {
               if(MK>100)
               {
                    throw new Student();
               }
           }
           catch(Student ex)
           {
                System.out.println("Student Marks cannot be greater than hundred");
           }
       }
    
  /*
  e. invoke both custom exceptions in UpdateMarks methodf. Implement a class MainClass hosting Main
     Create object of Student class. Call all the methods in such a way that all custom exceptions are raised.
 */
    public static void main(String[] args) 
   {
     String studentID = JOptionPane.showInputDialog("Please Enter Student ID");
     String studentName = JOptionPane.showInputDialog("Please Enter Student Name ");
     String studentMarks = JOptionPane.showInputDialog("Please Enter Student Marks ");
     String moduleName = JOptionPane.showInputDialog("Please Enter Student Module");
     Student student = new Student(Integer.parseInt(studentID),studentName,Double.parseDouble(studentMarks),moduleName);
     student.displayDetails();
     String studentMarksUpdate = JOptionPane.showInputDialog("Updat Student Mark");
     student.updateMarks(Double.parseDouble(studentMarksUpdate));
    }
           
}

السؤال الثاني حاول أن تستفد من حل السؤال الأول وقم بحله فهو مشابه تقريباً

وبالتوفيق 

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