7. Refer to the following class diagram in Figure 9.6: [Rujuk kepada kelas rajah yang berikut:]...

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7. Refer to the following class diagram in Figure 9.6: [Rujuk kepada kelas rajah yang berikut:] i. ii. Implement the classes. Assuming that Food is an abstract class and Convertible is an interface. [Laksanakan kelas-kelas tersebut. Dianggap kelas Food ialah kelas abstrak dan Convertible ialah sebuah interface.] The Convertible interface converts the following: a. weight in pound to gram, i.e. poundToGram = 435.59 b. US currency to Malaysian Ringgit, i.e. UStoMalaysian = 3.45 [Interface Convertible menukarkan yang berikut: a. berat daripada pound ke gram, iaitu, poundToGram = 435.59 b. matawang US ke Ringgit Malaysia, iaitu UStoMalaysia = 3.45] iii. The Food class contains abstract method (named display Info()) whose purpose is to display a brief information about a food, such as: [Kelas Food mengandungi metod abstrak (bernama display Info()) yang bertujuan untuk memaparkan maklumat ringkas sesuatu makanan seperti:] iv. Food description: Celery Weight in pound: 1 pound Weight in gram : 453.6 grams Price: US3.00 Price converted to Malaysian M RM10.35 Food description: Rambutan in syrup Canned Food Type: fruit Expired date: 12/12/12 267 Scanned with CamScanner LAB 9: POLYMORPHISM -DYNAMIC BINDING & ABSTRACT & INTERFACE Price: US5.00 Price converted to Malaysian = RM17.25 Write the application program to test the classes named FoodApp. The program must apply a polymorphism concept and the sample output of the application is as shown in part (iii) above. [Tulis aturcara aplikasi bernama FoodApp untuk menguji kelas-kelas di atas. Aturcara tersebut perlu menggunakan konsep polymorphism dan contoh output untuk aplikasi tersebut seperti yang ditunjukkan di dalam bahagian (iii) di atas.] weight int Vegetable * Vegetable (String, double, int) calcWeight InGram(): double <<Interface>> Convertible poundToGram- 435.59 UStoMalaysian 3.45 <<abstract >> Food description : String price: double + Food (); + Food (String, double) get Description (): String + get Price (): double + calcPriceInRinggit (): double abstract displayInfo(): String FoodApp Canned Food type String expiredDate: String + Canned Food (String, double, String, String) static main(String[1) Figure 9.6 7. Refer to the following class diagram in Figure 9.6: [Rujuk kepada kelas rajah yang berikut:] i. ii. Implement the classes. Assuming that Food is an abstract class and Convertible is an interface. [Laksanakan kelas-kelas tersebut. Dianggap kelas Food ialah kelas abstrak dan Convertible ialah sebuah interface.] The Convertible interface converts the following: a. weight in pound to gram, i.e. poundToGram = 435.59 b. US currency to Malaysian Ringgit, i.e. UStoMalaysian = 3.45 [Interface Convertible menukarkan yang berikut: a. berat daripada pound ke gram, iaitu, poundToGram = 435.59 b. matawang US ke Ringgit Malaysia, iaitu UStoMalaysia = 3.45] iii. The Food class contains abstract method (named display Info()) whose purpose is to display a brief information about a food, such as: [Kelas Food mengandungi metod abstrak (bernama display Info()) yang bertujuan untuk memaparkan maklumat ringkas sesuatu makanan seperti:] iv. Food description: Celery Weight in pound: 1 pound Weight in gram : 453.6 grams Price: US3.00 Price converted to Malaysian M RM10.35 Food description: Rambutan in syrup Canned Food Type: fruit Expired date: 12/12/12 267 Scanned with CamScanner LAB 9: POLYMORPHISM -DYNAMIC BINDING & ABSTRACT & INTERFACE Price: US5.00 Price converted to Malaysian = RM17.25 Write the application program to test the classes named FoodApp. The program must apply a polymorphism concept and the sample output of the application is as shown in part (iii) above. [Tulis aturcara aplikasi bernama FoodApp untuk menguji kelas-kelas di atas. Aturcara tersebut perlu menggunakan konsep polymorphism dan contoh output untuk aplikasi tersebut seperti yang ditunjukkan di dalam bahagian (iii) di atas.] weight int Vegetable * Vegetable (String, double, int) calcWeight InGram(): double <<Interface>> Convertible poundToGram- 435.59 UStoMalaysian 3.45 <<abstract >> Food description : String price: double + Food (); + Food (String, double) get Description (): String + get Price (): double + calcPriceInRinggit (): double abstract displayInfo(): String FoodApp Canned Food type String expiredDate: String + Canned Food (String, double, String, String) static main(String[1) Figure 9.6

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Code Convertiblejava create an interface named Convertible public interface Convertible public double poundToGram 43559 public double UStoMalaysian 345 Foodjava create a class named Food that implemen... View the full answer