Different ways to initialize variables

Question

There are different ways to initialize a variable in c++. int z(3) is same as int z=3. Is

int z;
z(3);

same as

int z;
z=3;

?

Answer 1

You can use:

int z;
z = 3;

Or just:

int z = 3;

Or:

int z(3);

Or:

int z = int(3);