Question

What is the output of the expression 60%3, which makes use of the modulo operator? Answer: Answer

Answer 1

As there are no numbers to the questions, I have given numbers to the questions.

1 sol)

The output of 60%3 is 0(zero).

% is the modulo operator, which gives remainder as output

3 divides into 60 perfectly, so it gives 0.

2 sol)

Ans : b) Overflow

when no space available while inserting data, that situation is called as a overflow.

3)

Output of the program :

Marks of Student 1: 5.0

This program simply prints the value in variable mark, whch is assigned by Student1.biology(which is 5.0).

4 sol)

With the help of Arrow(-->) operator we can access the memebers using object pointer

The alternative way to access the member "walk" for the pointer to object 'cat' is

cat-->walk.

5 sol)

Ans : a = 3, b = 2, c = 3

Explanation :

int a[]={2, 3, 4 ,6}

int a = 3; // a contains 3

int c = --a // here first, a will be decremented by 1 then it will be stored in c, so, a=2, c=2

int b = a++ // first, a will be assigned to b then a will be incremented by 1, so, b=2, a =3

cout<<arr[c++]<<endl; //while printing value c again will be incremented by 1, so, c=3

Final values of a, b, c are

a=3, b=2, c=3

6 sol)

Ans : c) x is a pointer to a string, y is a string

String *x, y;

above declaration clearly says x is a pointer to string variable and y is a normal string variable, so answer is (c).