Question: 10 B4. Based on class design guidelines, answer the following questions: a. Explain the recommendations regarding Constructors. [3 marks] b. Explain how to prevent the

 10 B4. Based on class design guidelines, answer the following questions:

10 B4. Based on class design guidelines, answer the following questions: a. Explain the recommendations regarding Constructors. [3 marks] b. Explain how to prevent the user from creating object of a class. [2 marks] c. Explain, when methods and variables of a class should be declared as instance or static. [5 marks)

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