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單項選擇題

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.

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