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What is an interface and why are they useful?

An interface in the Object Oriented Programming (OOP) sense is very similar to a class definition - it is the definition of the various functions and procedures provided by the class (in this case interfa...

Answered by Kajetan C. • Computing tutor

8397 Views

What is the use of a web-server on the internet?

A webserver is a computer that has been set up to listen for incoming requests from a client, find appropriate data for that request and return a response to that client. This is similar to a 'chatbot' on...

Answered by Jack P. • Computing tutor

2553 Views

How would 12 be represented in binary?

Decimal (the system you use everyday) is a base-10 number system, meaning it only uses 10 digits: 0-9. - Binary is a base-2 number system, meaning ...

Answered by Aiden D. • Computing tutor

2317 Views

Given a graph with n nodes and m edges, every edge has a passing cost that can be negative, find the minimum distance between node 1 and every other node

We will use the Bellman-Ford algorithm to compute the minimum distance between that start node and every other one, by passing through each edge for a maximum of n times and "relaxing the edge",...

Answered by Victor S. • Computing tutor

4232 Views

How can the idea of precondtioning as part of 'Thinking Ahead' benefit a programmer when writing code?

'Thinking Ahead' is one of 5 main aspects of Computational Thinking. It is the planning of inputs, ouputs and preconditions that the program will adhear to. By 'Thinking Ahead' programmers can discover ho...

Answered by Nathan H. • Computing tutor

9868 Views