Topic: 1z0-819 topic 1 question 206
Given:
What is the result?
A.
Oracle
B.
An exception is thrown at run time.
C.
Java
D.
Compilation error
Re: 1z0-819 topic 1 question 206
tested
Re: 1z0-819 topic 1 question 206
variables in lambdas must be a final or effectively final. If s is modified then code not compile
Re: 1z0-819 topic 1 question 206
right answer is D
Local variables decalred in the enclosing method, including its formal parameters, can be accessed in a lambda expression provided and they are effectively final
This one :
String s = "Oracle";
Runnable r = () -> {
System.out.println(s);
};
//s = "Java";
Thread t = new Thread(r);
t.start()
will be ok
Re: 1z0-819 topic 1 question 206
that is ok, variables in lambdas must be a final or effectively final. If s is modified then code not compile