void function_ab(){
if ( a == true){
final Class_A obj = new Class_A("a"); //This is an example scenario, so I couldn't create a setter to pass in "a" instead of passing it into Contructor.
}else{
final Class_A obj = new Class_A("B");
}
// the code below will access obj object in Inner class.
}
I need to access obj after the declaration, but since they are declared in 'if' block, I will not be able to access it after that. I can't do such thing like this also:
void function_ab(){
final Class_A obj = null;
if ( a == true){
obj = new Class_A("a"); //final variable cannot be changed.
}else{
obj = new Class_A("B");
}
// the code below will access obj object in Inner class.
}
The code above is not valid. So is the only way to get it works is to declare the obj variable as class variable? I try to avoid declaring like that because it only be used in that function only.
Please tell me if there is better way in solving this.
Instead of using:
final Class_A obj = null;
You should be able to use
final Class_A obj;
This will allow you to initialize obj within an if statement- for more information, check out this description of blank finals from Wikipedia, a source that we may all trust with our lives.