"Cannot find symbol variable" in Android SDK

Question

During compiling my new Android application Android Studio exit whit this error: "Cannot find symbol variable percscon".

My code is

if(ulterioretext.equals("")) {
            ....
        } else {

            String uno =  (String) "1";
            float numbersconto = Float.valueOf(ulterioretext);

            if(numbersconto <= 9){
                String percscont = (String) uno + ".0" + ulterioretext;
            } else {
                String percscont = (String) uno + "." + ulterioretext;
            }

            float percscontfloat = Float.valueOf(percscont); <- The error is here

            ....
        }

If i put the "String percscont = (String) uno + ".0" + ulterioretext;" outside the if everything works fine, but if It is inside the "if" The compiler did not find the percscont variable. Why?

Thanks

Answer 1

Cannot find symbol variable '''percscon'''.

And you have used variable

 float percscontfloat = Float.valueOf(percscont); 

It must be typo. No doubt

so as you have declared variable which has scope inside if and else block.

 if(numbersconto <= 9){
                String percscont = (String) uno + ".0" + ulterioretext;
            } else {
                String percscont = (String) uno + "." + ulterioretext;
            }

Outside this variable is not accessible.

So declare it outside or start of method or block and make it accessible after if-else.

Answer 2

I solved the problem myself.

I had to initialize the variable outside the if and now works fine!

Thanks

Answer 3

If you declaring percscont variable in if scope then you cannot access it from outside, if you want to access outside from if then declare in an upper scope.