A variable is not initialized

Question

What does it mean and what I have to correct in program ❓❓

Answer 1

Assuming you're doing object oriented compiled programming (java, c++, etc..)

Well they're two kind of data types in programming. There's the primitive ones and the objects.

If we declare a primitive type variable (like int, boolean, ...) without giving it a value, It will have a default value (0, false, ...)

On the contrary, more complicated data types (objects) will not have a default value but a null value (value = null), and the comoilator warns you about it

To correct it, simply give it a value when you declare it.

Answer 2

Please link the code in the post😶

It means that you tried to access a variable and the system couldnt find it

For example (Python example)

print(m)
m = "hello"

It will raise an error because m didn't "exist" yet

Answer 3

it means you should initialize the variable before using it

eg- int a; // this is declaration
a=20; // this is initialization

or int a=20;

Answer 4

ThewyShift sorry but you are wrong.
Only Instance variable and Static variable gets a default value if not initialized.

You need to initialize local variable before using it.

Answer 5

kiRA

Mmh gotta do some testing but that might indeed be true !
Thanks for the correction