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Ilya [14]
3 years ago
6

. Why should we favor programming to interfaces over implementations?

Computers and Technology
1 answer:
xenn [34]3 years ago
4 0

Answer:

Interfaces are way to use full abstraction.That;s why it is preffered over implementations.

Interfaces are just like class.But the methods declared inside an abstract class are by default abstract and the variables are by default static,final.Which is not the case with classes in classes the variables can be static or non- static ,fincal or non-final and methods can be abstract or non-abstract.

Java classes does not support multiple inheritance but interfaces support multiple inheritance.So whenever we want to implement multiple inheritance in Java we use interfaces.

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3 years ago
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Write the code in python to ask the user to input two integers. Your program will then print the greatest common divisor of the
Hunter-Best [27]

import math

num1 = int(input("Enter a number: "))

num2 = int(input("Enter a number: "))

print(math.gcd(num1, num2))

The gcd() - greatest common divisor function, which is part of the math module works perfectly in this situation.

3 0
2 years ago
Analyze the following code.
vazorg [7]

Answer:

The correct answer for the given question is "The program has a runtime NullPointerException because test is null while executing test.x"

Explanation:

In this code their is run time exception will occur in Main method i.e "java.lang.NullPointerException "because the object of the Test class i.e test will initialized by "null" .So on executing the statement test.x  it gives an Runtime Exception.The "NullPointerException" can occur if we assign the object to the "null" value that why it produce an java.lang.NullPointerException

8 0
3 years ago
You have a website that sells widgets, and you have a category page specifically for blue widgets. After some extensive outreach
REY [17]

Answer:

It will increase your ranking on the homepage.

Explanation:

Widgets are easy to use software applications made up of one or more components.

Widgets will provide you with a quick access to information or data and there won't be any need to open the app that manages that information.

That is to say, without requiring you to open the app that manages a certain data or information you want to access, Widgets opens it for you.

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7 0
3 years ago
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kompoz [17]

Answer:

The answer is "Option (i)".

Explanation:

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8 0
3 years ago
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