Constructors
Quiz by shamal hirekurbure
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- Q1
In Java, a constructor with no parameters or arguments is called ................ constructor.
User-defined constructor
Default constructor
Static constructor
Custom constructor
10s - Q2
Which is odd in given options
ASCII
none of the mentioned
ISO-LATIN-1
UNICODE
10s - Q3
Default constructor requires how many parameters ?
0
3
2
1
10s - Q4
Which function can be used to call default constructor in java ?
sub()
super()
this()
that()
10s - Q5
Which principal in Object-Oriented Programming is followed during Java constructor overloading
None of the above
Encapsulation
Polymorphism
Inheritance
10s - Q6
Which is odd in given options
Dynamic
Object-oriented
Use of pointers
Architectural neutral
10s - Q7
What is the output if this() and super() is used in the method ?
Compile time error
Runs successfully
Run time error
Throws exception
10s - Q8
"This" keyword is used to
Calling another constructor
None of the above
Passing itself to another method
Passing itself to a method of the same class
10s - Q9
A constructor is initialized when
There is a reference variable in class
All the above
There is an object of another class, and the other class doesn`t have a default constructor
There is a constant variable in class
10s - Q10
In derived class can constructor be overloaded ?
Yes always
No
Both a and b
Yes if derived class has no constructor
10s - Q11
The explicit keyword takes exactly how many arguments
0
2
1
3
10s - Q12
What is false about constructor
"this" and "super" can be used in a constructor
Java does not provide default constructor
Constructor cannot be synchronized in Java
Constructor can have a return type
10s - Q13
What is true about copy constructor
Used when function returns an object
It can be defined with zero arguments
Used when an object is passed by value to a function
The argument object is passed by reference
10s - Q14
Abstract class cannot have a constructor
True
None of these
False
Both a and b
10s - Q15
Which is odd in given options
Main
Object
strictfp
System
10s