Question

I hope this question is not too basic for someone to help me out on.

I have a variable who’s value I define in one method that I would like to use and manipulate in another. Is this possible?

I hope the simple expample code attached will help.
I want the value for ‘c’ to be 3, but it is only 2.

int a = 0;

-(void)method1  {
int a = 1;
NSLog(@"method 1--> a = %d", a);
}


-(void)method2  {
int b = 2;
NSLog(@"method 2--> b = %d", b);
int c = a + b;
NSLog(@"method 2--> c = %d", c);    
}

Answer 1

int a = 1 in method1 declares new local variable distinct from ‘a’ declared globally. If you want global ‘a’ to be used here – omit ‘int’ here.This will turn declaration of local variable ‘a’ with initialization into assignment to the globally declared ‘a’.