Answer:
Please check explanation.
Explanation:
1. What is Object Oriented Programming language?
We have functional programming language, imperative programming language and object oriented programming language. In object oriented approach emphasis is on object and its behavior. Things need to be done, and it is not required to know how it is done, which is functional programming.Preference is given to Data over behavior. It also supports polymorphism, data abstraction, encapsulation and inheritance, and various other OOPS concepts like cohesion and coupling, aggregation and generalization etc.
2. What is cross platform?
It implies that a code or software can run same way with all features on variety of operatings like OS X, Linux, Unix, Windows etc. In mobile application development it can be like iOS and Android.
3.What is free and open source language?
Python is certainly, as it is free to use even commercially as well as the source code and various interpreters are available free of cost. Various IDE are also available free of cost.
4. What are the keywords and identifier?
Keywords are reserved words in a programming language which carries a certain important meaning and functioning. Identifiers on the other hands are the special names given to functions, variables etc.
5. Different types of string?
Generally there are two types of strings, the fixed length strings, and variable length strings.
6. Expression and statement.
The expressions gets evaluated to a value like an arithmetic expression. The statements are made out of the variables, operators etc and does some action, or command.
7. Data type and built in Data type
Data types implies type of variables, constants, identifies, and final value of expressions. They are strings, integers, floats, double, Boolean, bytes etc. We also categorize data types as explicit and implicit data types. And the built in data types are predefined, and as mentioned above like integer, char, strings, double etc. We also have user defined data types.
8. Built in function?
Never get confused with method and functions. Methods are used in classes, and in fact functions in object oriented programming language, and are the procedures like functions. Whereas the functions are a block of code that performs certain task, and they can be placed anywhere in the program as well as can be called any number of times, and also are written only once. The built in functions are like keywords which are predefined like max(), min(), various math functions, print function, range functions etc.
9. Different types of Else clause.
There is else if clause and else clause. However, Else clause in Python has different meaning, and it marks the beginning of the code block.
else if is written like:
If q>qw:
print(q)
else if q>10:
print(qw)
else:
print(q)
However else clause in Python is used with for loop as well. When break statement inside the for loop is not encountered, we used flag in c++. c# etc. And that was a little impure, as we injected flag over there, and we can use any name for flag which can create confusion at times. However, remember by purity we actually mean, an integer mean integer. However, var can store integer, as well as char and any data type in c# and hence it is an impure language. However, here in Python we have else instead of flag.
a=23
like
For i in range(3,20):
If i=a:
print("a is found")
break
else:
print("a is not found")
Rest, and in fact all answers are in attachment. Please find all there.
