格林模拟试题一（上）(7)

 uestion 22)

which statement is true of the following code?

public class agg{
agg a = new agg();
}
dsross ds1 = new dsross("one");
}
class dsross extends thread{
dsross(string s){
}
notwait();
}
while(true){
system.out.println("waiting");
}catch(interruptedexception ie){}
notifyall();
}

}

1) it will cause a compile time error
3) compilation and output of "waiting" followed by "finished"

question 23)

class base{
}

public class scope extends base{
}
}

1) void amethod(int i) throws exception {} 
3) void amethod(long i){}