Interface: Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes. An interface needs to the follow certain conditions such as: • One cannot instantiate an interface. • Interfaces do not contain any constructors. • All methods present in the interface are abstracts. • An interface does not contain any instance field. • An interface cannot be extended by a class.

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Answer 1

Question

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

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Answer 2

Question

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Expert Solution & Answer

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Answer 4

Question

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Expert Solution & Answer

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Answer 5

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Answer 6

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Answer 7

Chapter 8.4, Problem 26STQ

Program Plan Intro

Interface:

Interface is a reference type in Java, which contains a collection of abstract methods. It is very similar to class, but it cannot be instantiated, rather it is implemented by other classes.

An interface needs to the follow certain conditions such as:

• One cannot instantiate an interface.

• Interfaces do not contain any constructors.

• All methods present in the interface are abstracts.

• An interface does not contain any instance field.

• An interface cannot be extended by a class.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 8.1 - Prob. 1STQ Ch. 8.1 - Suppose the class SportsCar is a derived class of...Ch. 8.1 - Suppose the class SportsCar is a derived class of...Ch. 8.1 - Can a derived class directly access by name a...Ch. 8.1 - Can a derived class directly invoke a private...Ch. 8.1 - Prob. 6STQ Ch. 8.1 - Suppose s is an object of the class Student. Base...Ch. 8.2 - Give a complete definition of a class called...Ch. 8.2 - Add a constructor to the class Student that sets...Ch. 8.2 - Rewrite the definition of the method writeoutput...

Solution Summary: The author explains that an interface is a reference type in Java, which contains abstract methods. It cannot be instantiated, rather it is implemented by other classes.

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