单项选择题
public class Starter extends Thread {
private int x= 2;
public static void main(String[] args) throws Exception {
new Starter().makeItSo();
}
public Starter() {
x=5;
start();
}
public void makeItSo() throws Exception {
join();
x=x- 1;
System.out.println(x);
}
public void run() { x *= 2; }
}
What is the output if the main() method is rum?()
A. 4
B. 5
C. 8
D. 9
E. Compilation fails.
F. An exception is thrown at runtime.
G. It is impossible to determine for certain.