Can you declare a variable without initializing it ?

Question

Is it possible to say int a;

Answer 1

It's just a simple example he can declare the variable then get an input from user and give that value to the variable he declared

Answer 2

If you mean declare the variable e.g int a;
Then you initialize it a = 9; yes you can do it

Answer 3

Yes. E.g. in C/C++/Java:
int a;
is valid.

Answer 4

That is exactly what I was thinking. Declare a variable and then accept input