variables

Question

when you write

int a = 100;
a = 50;
cout << a;

the answer is 50
so.. why you should still type 100 on (int a=)

Answer 1

you could initialize the number to the variable when you declare your variable or later depending on the program

Answer 2

to add.... if you cout<<a without loading it with a=50, it will display 100...this code is showing like chris said, that you can temporarily change whats inside "a" if you need to later, or leave it with the current value

Answer 3

You can also write it as

int a;
a=50;
cout<<a;

It is not necessary to declare at the time of declaration.

Answer 4

You can just type "int a;". No necessary to initialize it with a value in this case.

Answer 5

thanks all