Which of the following statements about inheritance and polymorphism is true in Java?Question 2Answera.Inheritance and polymorphism are independent concepts and do not impact each other.b.Inheritance is a prerequisite for polymorphism.c.Polymorphism can only be achieved through method overloading.d.Inheritance and polymorphism cannot be used together in the same program.
Question
Which of the following statements about inheritance and polymorphism is true in Java?Question 2Answera.Inheritance and polymorphism are independent concepts and do not impact each other.b.Inheritance is a prerequisite for polymorphism.c.Polymorphism can only be achieved through method overloading.d.Inheritance and polymorphism cannot be used together in the same program.
Solution
Para responder a esta pregunta, vamos a analizar cada una de las opciones:
a. Inheritance and polymorphism are independent concepts and do not impact each other.
- Esta afirmación es incorrecta. La herencia y el polimorfismo están estrechamente relacionados. La herencia permite que una clase derive de otra, y el polimorfismo permite que una clase hija sea tratada como una instancia de su clase padre.
b. Inheritance is a prerequisite for polymorphism.
- Esta afirmación es correcta. El polimorfismo en Java se basa en la herencia. Para que una clase pueda ser polimórfica, debe heredar de otra clase o implementar una interfaz.
c. Polymorphism can only be achieved through method overloading.
- Esta afirmación es incorrecta. El polimorfismo en Java se logra principalmente a través de la herencia y la implementación de interfaces, no solo mediante la sobrecarga de métodos. La sobrecarga de métodos es una forma de polimorfismo, pero no es la única.
d. Inheritance and polymorphism cannot be used together in the same program.
- Esta afirmación es incorrecta. De hecho, la herencia y el polimorfismo se utilizan juntos frecuentemente en la programación orientada a objetos para crear sistemas flexibles y reutilizables.
Por lo tanto, la respuesta correcta es: b. Inheritance is a prerequisite for polymorphism.
Similar Questions
Which of the following statements about polymorphism in Java is true?Question 8Answera.Polymorphism allows an object to take on multiple forms at runtime.b.Polymorphism is achieved through method overriding.c.Polymorphism can only be applied to interfaces, not classes.d.Polymorphism is limited to compile-time behavior only.
Which of the following statements accurately summarizes the benefits of polymorphism in Java programming?Question 3Answera.Polymorphism improves code readability and enhances code reusability.b.Polymorphism restricts the flexibility of code execution.c.Polymorphism increases code duplication and hampers code maintenance.d.Polymorphism reduces the scalability of software systems.
e correct answerUsing which of the following, multiple inheritance in Java can be implemented?
In Java, what is the benefit of using inheritance?Question 4Answera.It allows for code reuse and promotes a hierarchical structure.b.It eliminates the need for polymorphism.c.It makes code more complex and harder to maintain.d.It reduces the performance of the program.
answerWhat is inheritance in Java?OptionsThe ability to create multiple instances of a classThe ability of a class to inherit fields and methods from its subclassThe ability to create new classes from existing classesThe ability of a subclass to inherit the fields and methods of its superclass
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