PYTHON CONCEPTS

Important Python Mcqs

To concatenate two strings to a third, what statements are applicable?

a) s3 = s1 . s2

b) s3 = s1.add(s2)

c) s3 = s1.__add__(s2)

d) s3 = s1 * s2

Answer:

c) s3 = s1.__add__(s2)

Explanation:

The __add__() method in Python specifies what happens when you call + on two objects. When you call obj1 + obj2, you are essentially calling obj1. __add__(obj2). So option c is correct.

Which keyword is used to import a package from the Java API library?

a) lib b) package c) getlib d) import Answer d) import

Which of the following statements is incorrect with respect to overriding?

a. When overriding a method, the names and type signatures of the override method must be the same as the virtual method that is being

Which of the following is an implicit object?

a. Vector b. ln c. Response d. Request Answer: d. Request Explanation: The JSP request is an implicit object of type HttpServletRequest. It can be used

What is the output of the below Java program with constructors?

a) Count=0 b) Count=10 c) Compile error d) None of the above Answer c) Compile error