Examlab(SCJP 6 Practice exam 3) Thread Question

[Moses Marfo]

Can someone please explain why the answer is "DAEBC"?
What if the thread scheduler decides to start the new thread after the synchronized block in main?

Is the reason for the answer being "DAEBC" the same as this example

   public class Syn extends Thread{

     static void doSleep(long t){
          try{
               Thread.sleep(t);
          }catch(Exception e){}
     }

     public void run(){
          synchronized(System.in){
               synchronized(this){
                    System.out.print("A");
                    doSleep(500);

                    try{wait();}catch(Exception e){}
		
                    System.out.print("B");
               }
               doSleep(500);
               System.out.print("C");
          }
     }

     public static void main(String args[]){
          Syn s1=new Syn();
          System.out.print("D");
          doSleep(500);
          s1.start();
          doSleep(2000);

          synchronized(s1){
               s1.notifyAll();
               doSleep(2000);
               System.out.print("E");
          }
     }
}

A Prints "DABCE"
B Prints "DABCE"
C Prints "DAEBC"
D. Prints "DABCE" or "DABEC"
E. Prints "DAE"
F. Result is upredictable
G. IllegalThreadStateException is thrown
H IllegalMonitorStateException is thrown
I Compile time error

Ans. C 

[Devaka Cooray]

previously discussed.

[Moses Marfo]

Devaka Cooray wrote:previously discussed.

thanks Devaka