Exam 1z0-808 topic 1 question 190 discussion

public static void main(String[] args) { char colorCode = 'y'; switch (colorCode) { case 'r': int color = 100; break; case 'b': color = 10; break; case 'y': color = 1; break; } System.out.println(color); }

The correct answer is the letter A, it is the typical case of differentiating between local variable and instance variable, as the local variable "color" was instantiated inside the switch, the code inside the switch compiles normally, but when exiting siwtch and trying printing the variable inside the class cannot because there is no variable created with that name, as "color" is a local variable, its instantiation is only valid locally inside the switch and not outside it.