C# Questions & Answers on Introduction of Overloaded Operators for Freshers
https://www.computersprofessor.com/2018/07/c-questions-answers-on-introduction-of.html
1. Which of the following keyword is used to overload user defined types by defining static member functions?
a) op
b) opoverload
c) operator
d) operatoroverload
Answer: c
2. Which of following statements are correct in nature?
a) The conditional logical operators cannot be overloaded
b) The array indexing operator can be overloaded
c) A public or nested public preference type does not overload the equality operator
d) None of the mentioned
Answer: a
3. Arrange the following overloaded operators in increasing order of precedence?
%, <<, &, /, +
a) ‘%’ < ‘<<‘ < ‘+’ < ‘-‘ < ‘&’ < ‘/’
b) ‘<<‘ < ‘&’ < ‘%’ < ‘-‘ < ‘/’ < ‘+’
c) ‘&’ < ‘-‘ <‘%’ < ‘<<‘ < ‘/’ < ‘+’
d) ‘/’ < ‘-‘ < ‘%’ < ‘+’ < ‘<<‘ < ‘&’
Answer: b
4. Operators that can be overloaded are?
a) ||
b) ‘+=’
c) +
d) [].
Answer: c
5. Which statements are correct about operator overloading?
a) Mathematical or physical modeling where we use classes to represent objects such as vectors,matrices,complex-numbers etc
b) Graphical programs where coordinate related objects are used to represent positions on the screen
c) Financial programs where a class represents an amount of money
d) All of the mentioned
Answer: d
6. Correct way to define operator method or to perform operator overloading is?
a) public static op(arglist)
{}b) public static retval op(arglist)
{}c) public static retval operator op(arglist)
{}d) All of the mentioned
Answer: c
7. Correct method to define + operator is?
a) public sample operator +(int a, int b)
b) public abstract operator +(int a, int b)
c) public static sample operator +(int a, int b)
d) public abstract sample operator +(int a, int b)
Answer: c
8. Choose the correct statement among the below mentioned statements:
a) Forgetting to declare an operator method as public
b) Forgetting to declare an operator method as static
c) Forgetting to return a bool type value while overloading a relational operator
d) All of the mentioned
Answer: d
9. What is vector in operator overloading?
a) class
b) method()
c) data type
d) none of the mentioned
Answer: c
Explanation: It is a data type of class . It is defined as : public static Vector operator + (Vector a, Vector b).
10. Choose the wrong statement from the given set of statements?
a) All operators in C#.NET cannot be overloaded
b) We can use the new modifier to modify a nested type if the nested type is hiding another type
c) Operator overloading permits the use of symbols to represent computations for a type
d) In case of operator overloading all parameters must be of different type than the class or struct that declares the operators
Answer: d
