How to delete a node in a linked list?

Question

This is what I have so far, but it\'s not working in the test file. Basically skips to the else if(cnode == preposition)

void LinkedList::Delete(Nod         


        

Answer 1

Here are the full code

    class SportShoe  {
    private:
        struct nodeSport {
            int ShoeID;
            char BrandShoe[SIZE]; 
            char TypeShoe[SIZE];
            char ColourShoe[SIZE];
            int SizeShoe;
            float PriceShoe; 
            nodeSport *last;
            };
            nodeSport *first = NULL; 

    public:
        int MenuSportShoe();
        void AddSportShoe();
        void DisplaySportShoe();
        void DeleteSportShoe();
        static void ExitSportShoe();
    };

   int SportShoe::MenuSportShoe() {
     int OptionSportShoe = 0;

    cout << endl;
    cout << "Please select from the menu:" << endl;
    cout << ":: 1 :: Add item to shoe list" << endl;
    cout << ":: 2 :: Display shoes list" << endl;
    cout << ":: 3 :: Delete item from the list" << endl;
    cout << ":: 4 :: Back" << endl;
    cout << "=>> ";
    cin >> OptionSportShoe;

    while (OptionSportShoe == 1){
        AddSportShoe();
    }

    while (OptionSportShoe == 2){
        DisplaySportShoe();
      }

    while (OptionSportShoe == 3){
        DeleteSportShoe();
    }

    while (OptionSportShoe == 4){
        ExitSportShoe();
    }

    return 0;
  }

void SportShoe::AddSportShoe() {    
    nodeSport *tempShoe1, *tempShoe2; 

    tempShoe1 = new nodeSport;
    cout << "Please enter the Shoe ID : (eg. 43210) " << endl;
    cout << "=>> ";
    cin >> tempShoe1->ShoeID;

    cout << "Please enter the Shoe Brand: (eg. Adidas) " << endl;
    cout << "=>> ";
    cin.sync();
    cin.getline(tempShoe1->BrandShoe,SIZE);

    cout << "Please enter the Shoe Type : (eg. Running) " << endl;
    cout << "=>> ";
    cin.sync();
    cin.getline(tempShoe1->TypeShoe,SIZE);

    cout << "What is the Shoe Colour : (eg. Grey) " << endl;
    cout << "=>> ";
    cin.sync();
    cin.getline(tempShoe1->ColourShoe,SIZE);

    cout << "Please enter Shoe Size : (eg. 9) " << endl;
    cout << "=>> ";
    cin >> tempShoe1->SizeShoe; 

    cout << "Please enter the price of the Shoe : (eg. RM123.45) " << endl;
    cout << "=>> RM ";
    cin >> tempShoe1->PriceShoe;


    tempShoe1->last = NULL;  


    if (first == NULL)  
        first = tempShoe1;
    else  
    {
        tempShoe2 = first; 
        while (tempShoe2->last != NULL) 
            tempShoe2 = tempShoe2->last;

        tempShoe2->last = tempShoe1;
    }

    system("PAUSE");
    MenuSportShoe();
  }

void SportShoe::DisplaySportShoe() {
    nodeSport *tempShoe1;
    tempShoe1 = first;

    while(tempShoe1){
        cout << "ID : " << tempShoe1->ShoeID << endl;
        cout << "Brand : " << tempShoe1->BrandShoe << endl;
        cout << "Type : " << tempShoe1->TypeShoe << endl;
        cout << "Colour : " << tempShoe1->ColourShoe << endl;
        cout << "Size : " << tempShoe1->SizeShoe << endl;
        cout << "Price : " << tempShoe1->PriceShoe << endl;
        cout << endl;
        tempShoe1 = tempShoe1->last;
    }

    system("PAUSE");
    MenuSportShoe();
  }

 void SportShoe::DeleteSportShoe(){
    nodeSport *tempShoe1, *tempShoe2; 
    int DataShoe;
    tempShoe2 = tempShoe1 = first;

    if(tempShoe1 == NULL)
    {
        cout << "\nList is empty!" << endl;
        system("PAUSE");
        MenuSportShoe();
    }

    while(tempShoe1 != NULL)
    {
        cout << "\nEnter the Shoes ID to be deleted: (eg. 123) ";
        cin >> DataShoe;

        tempShoe2 = tempShoe1;
        tempShoe1 = tempShoe1->last;

        if(DataShoe == tempShoe1-> ShoeID){ 
            if(tempShoe1 == first)  {
                first = first->last;
                cout << "\nData deleted ";
            }

            else{
                tempShoe2->last = tempShoe1->last;
                if(tempShoe1->last == NULL){
                    tempShoe2 = tempShoe2;
                }
                cout << "\nData deleted ";
            }

            delete(tempShoe1);

            system("PAUSE");
            MenuSportShoe();
        }

        else{
            cout << "\nRecord not Found!!!" << endl;
            system("PAUSE");
            MenuSportShoe();
        }
    }
  }

  void SportShoe::ExitSportShoe(){
    int sepatu;

    cout << endl;
    cout << "Please choose the option below."<> ";
    cin >> sepatu;

    while(sepatu == 1){
        SportShoe listShoe;
        listShoe.MenuSportShoe();
    }

    while(sepatu == 2){
        HighHeel listShoe;
        listShoe.MenuHighHeel();
    }

    while(sepatu == 3){
        cout << "Thank you. Till we meet again."<< endl;
        exit(1);
    }

  }

  main() {

    cout << "Hello! Welcome to MySepatu Online Shop administrator."<< endl;
    cout << endl;

    SportShoe::ExitSportShoe();
    HighHeel::ExitHighHeel();

    return 0;
  }