- 搜標(biāo)題
- 搜題干
- 搜選項
單項選擇題
public class TestSeven extends Thread {
private static int x；
public synchronized void doThings（） {
int current = x；
current++；
x = current；
}
public void run（） {
doThings（）；
}
}
Which is true？（）
A. Compilation fails.
B. An exception is thrown at runtime.
C. Synchronizing the run（） method would make the class thread-safe.
D. The data in variable “x” are protected from concurrent access problems.
E. Declaring the doThings（） method as static would make the class thread-safe.
F. Wrapping the statements within doThings（） in a synchronized（new Object（）） {} block would make the class thread-safe.
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