Virtual Labs

Implement association relationship between classes using C++/Java

1. If there exits the class Student, then what does the following programming statement imply? Student s[] = new Student[5];

a: 5 students objects instantiated with garbage value. Explanation

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b: 5 student objects instantiated with default values. Explanation

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c: 5 Student object references with null value. Explanation

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d: student object array not created. Explanation

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2. Identify the valid statements about the 'this' operator:

a: this is passed as parameter from non-static method to static method. Explanation

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b: this is passed as parameter from static method to non-static method. Explanation

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c: this helps in constructor call. Explanation

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d: this helps in accessing local variables. Explanation

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3. In object-oriented programming, an association relationship is a relationship between two classes that describes a connection or interaction between the objects represented by those classes. Which of the following statements is true about association relationships?

a: An association relationship is always a one-to-one relationship. Explanation

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b: An association relationship is always a many-to-many relationship. Explanation

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c: An association relationship can be a one-to-one, one-to-many, or many-to-many relationship. Explanation

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d: An association relationship can only be a one-to-many relationship. Explanation

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4. What are the two parts of a class?

a: State and behavior Explanation

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b: Methods and static variables Explanation

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c: Main and methods Explanation

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d: None of the above Explanation

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5. What is the primary purpose of a concrete class in Java?

a: To define a blueprint for other classes without providing full implementation. Explanation

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b: To serve as a base class for polymorphism. Explanation

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c: To create actual objects with specific behaviors and properties. Explanation

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d: To enforce a contract for implementing classes. Explanation

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