Answer:
Correct answer is:
communicate the purpose of the code that follows it.
Explanation:
Let have a look at each option
comment should give the reader the background of the programmer.
Comments are unable to do so.
Be written on every line
No, it is not need as comment are useful only to explain difficult or complex part of code.
communicate the purpose of the code that follows it.
yes, this option is true, as comments will give hints to programmer about the piece of code.
give information about how many hours it took to write the code
No, comments can answer it,
Climate seems like the correct answer
Answer:
It represents a threat of instrument change.
Explanation:
Internal validity is a method to determine if research has been performed properly. It is based on the number of confounding variables present in the experiment. If an experiment is carried out and confounding variables are avoided, the internal validity is high, and viceversa. In an ideal context, the experiment's internal validity will be high, which will mean its results will be trustworthy.
The students, by making use of a computer software, lowered the validity of the test performed by the teacher.
Answer:(c) abstract class A { abstract void unfinished(); }
Explanation:
A legal abstract class must have the keyword abstract before the class and an abstract class has abstract functions with the keyword abstract written and a void as the return type.
