Answer:
It is general knowledge
Explanation:
What you covered is general knowledge and the entrance to computer science.
Answer:
The answer is "Block scope".
Explanation:
In the programming, the scope is a code, in which it provides the variable ability to exist and not be retrieved beyond variable. In this, the variables could be defined in 3 locations, that can be described as follows:
- Inside a method or the block, which is also known as a local variable.
- Outside of the method scope, which is also known as a global variable.
- Defining parameters for functions known as formal parameters.
Answer:
when user wants duplicate copy of the object
Explanation:
Encapsulation are one of the key foundations of object-oriented programming (OOP). It involves the bundling of data or information with the methods and various techniques which operate on that data.
It can be used in hiding the true values or state of a structured data object that is in a class, preventing unauthorized parties' direct access to them.
The circumstances that can be allowed in returning a reference to the existing Engine is when user wants duplicate copy of the object.
Answer: Through the use of close-ended questions, for example a question with a YES/NO answer.
Explanation:
Close ended questions are questions in which a participant has already been provided with options to a question, and so the participants must choose from the options and cannot give an answer outside the options given.
Using this kind of question to modify the database schema would be helpful.
Therefore, in order to affirm that the volunteers are not allergic to dogs or cats, the close ended question "are you allergic to dogs or cats" can be used. The volunteers would be provided with a yes or no answer which they must choose from.
This would help in modifying the database schema while affirming whether the volunteers are allergic to dogs or cats.
