Question

Some pointer arithmetic is allowed. Which of the following arithmetic operators is allowed? (can have multiple answers)

a) pointer + integer

b) pointer - pointer

c) pointer - integer

d) integer + pointer

e) integer * pointer

Which statement correctly defines a vector object for holding Dealer objects?

a.Dealer vector v;

b.Dealer<vector> v;

c.vector<Dealer> v;

d.vector v<Dealer>;

One of the following statements dynamically allocates an array of floats having size SIZE.

a.float array;

b.float *array[SIZE];

c.float array = new float[SIZE];

d.float *array = new float[SIZE];

Which of the following statements declare two-dimensional array?

a.int a[];

b.int a[5][6];

c.int a[][];

d.int a[][4];

e.None of the above

Answer 1

The below operations are allowed, pointer only support + and - and not *
a) pointer + integer
b) pointer - pointer
c) pointer - integer
d) integer + pointer

c.vector<Dealer> v; is the correct way to define vector to store Dealer objects

d.float *array = new float[SIZE]; is the correct way;

b.int a[5][6]; is the correct statement; we need to mention the size of first and second dimensions is square brackets