1
Java method overloading implements the OOPS concept ___.
Correct Answer
Polymorphism
☑ MCQ PRACTICE
Java Programming Part 2
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Java Programming - Part-2
2
___ is the superclass to all Java classes either user-defined or built-in.
Correct Answer
Object
3
Java language doesn't supports ___ type of inheritance.
Correct Answer
Multiple Inheritance
4
If you use "import packagename.* ", which of the following will be accessible.
Correct Answer
All the classes and interfaces of this package
5
Which access modifier data members will be accessible Inside the package only.
Correct Answer
default
6
Which access modifier data members will be accessible Inside the package and outside the package through sub classes.
Correct Answer
protected
7
Which access modifier data members will be accessible Inside the class only.
Correct Answer
private
8
Which of the method is not supported by scanner class?
Correct Answer
readLine()
9
What is the correct syntax to create to an object for Console class?
Correct Answer
Console c = System.console();
10
Constructor is a special type of method which is used to ______________________?
Correct Answer
All the above
11
Which of the following is not a standard rule to define constructor?
Correct Answer
Constructor must have explict return type
12
The wrapping up of data and functions into a single unit is called
Correct Answer
Encapsulation
13
In object-oriented programming, new classes can be defined by extending existing classes. This is an example of:
Correct Answer
Inheritance
14
What is the maximum number of ELSE-IF statements that can present in between starting IF and ending ELSE statements?
Correct Answer
None
15
The super keyword is used to ____________________.
Correct Answer
access the variables and methods in parent class
16
Which of the following statement is invalid about final keyword?
Correct Answer
The final keyword can be appiled on methods to disallow method overloading
17
The compile time polymorphism performed by _______________________?
Correct Answer
method overloading
18
If a class have multiple methods with same name but different parameters is known as _________________?
Correct Answer
method overloading
19
If a child class has the same method as declared in the parent class is known as _________________?
Correct Answer
method overriding
20
Which of the following is not a rule for method overriding?
Correct Answer
Class name and method name must be same.
21
For a Multi Level Inheritance which of the following is correct?
Correct Answer
Class-C inherits from Class-A and Class-B inherits from Class-C
22
To stop or block inheriting a given class, the ___ keyword is used before the class.
Correct Answer
final
23
An Overridden method is the method of ____ class and the overriding method is the method of ___ class.
Correct Answer
super, sub
24
___________ binding will be performed at runtime when we override the methods.
Correct Answer
Dynamic
25
An abstract class can have __________________________?
Correct Answer
Abstract and non abstract methods.