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class Order的答案

class Order implements Runnable { 
public void run() { 
try { Thread.sleep(2000); } catch (Exception e) { } 
System.out.print("in "); 
} 
public static void main(String [] args) { 
Thread t = new Thread(new Order()); 
t.start(); 
System.out.print("pre "); 
try { t.join(); } catch (Exception e) { } 
System.out.print("post "); 
} } 
可产生哪两项结果?()

多选题
2023-03-06 11:23
A、in pre
B、pre in
C、in pre post
D、pre in post
查看答案

正确答案
C | D

试题解析

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class Order implements Runnable { 
public void run() { 
try { Thread.sleep(2000); } catch (Exception e) { } 
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} 
public static void main(String [] args) { 
Thread t = new Thread(new Order()); 
t.start(); 
System.out.print("pre "); 
try { t.join(); } catch (Exception e) { } 
System.out.print("post "); 
} } 
可产生哪两项结果?()

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