[HD Pg 215, Sec. 8.5.5 - final-variables-revisited]
Posted: Mon May 13, 2019 1:11 pm
Since an instance variable can be used by other classes only after an object of this class is created, it follows that a instance final
variable can be initialized at the time of declaration, in any of the instance initializers, or in all of the constructors.
I don't think it needs to be initialized in all constructors?
In the last constructor there is just a call to the other constructor but no initialization in it.
variable can be initialized at the time of declaration, in any of the instance initializers, or in all of the constructors.
I don't think it needs to be initialized in all constructors?
In the last constructor there is just a call to the other constructor but no initialization in it.
Code: Select all
public class TestClass{
final int value; //not initializing here
{
//not initializing value here either
}
TestClass(){
value = 10;
}
TestClass(int x){
value = x;
}
TestClass(int a, int b){
this();
}
}