A:-An abstract class is a class which cannot be instantiated
B:-Creation of an object is not possible with abstract class but it can be inherited
C:-An abstract class can contain only Abstract method
D:-None of these
Correct Answer:- Option-D
Question53:-Which is the necessary condition for virtual function to achieve late binding?
A:-virtual function is to be accessed with direct name
B:-Virtual functions is to be accessed using base class object only
C:-Virtual function is to be accessed using pointer or reference
D:-Virtual function is to be accessed using derived class object only
Correct Answer:- Option-C
Question54:-Operator overloading ‏گا‎
‎A:-Making c++ operator works with objects
B:-Giving new meaning to existing operator
C:-Adding operation to the existing operators
D:-All the above
Correct Answer:- Option-C
Question55:-What are all the operators that cannot be overloaded?
A:-Scope Resolution (::}
B:-Member Selection (.}
C:-New operator (ലജ)
D:-Both 1 and 2
Correct Answer:- Option-D
Question56:-Which two of the following methods are defined in class Thread?
A:-Start and wait
B:-Start and run
C:-Wait and notify
D:-Start Only
Correct Answer:- Option-B
Question57:-Which of these class object cannot be used to form a dynamic वाचे in JAVA?
A:-AmayList
B:-Map
C:-Vector
D:-ArrayList and Vector
Correct Answer:- Option-B
Question58:-Predict the output of the following code

public class Check

{

public static void main(String args[]}
{

String s1 = “test";

String 52 = new String(s1);
System.out.printin(s1==s2);
}

}
കട
B:-false
C:-0
D:-test
Correct Answer:- Option-B
Question59:-In java applet programs, the applet life cycle functions are called in which order?
A:-start(), init(}, paint(}, destroy(}, stop(}
)» run(), start(), stop(), destroy(}
C:-init(), start(), paint(}, stop(}, destroy(}
D:-start(}, run(}, paint(}, destroy(), stop(}
Correct Answer:- Option-C
Question60:-The three notion of java virtual machine are
A:-class, object, variable
B:-specification, implementation, instance
C:-primitive, referential, user defined