【多选题】
Which three statements are true？（）<br /> <img src="https://nimg.ppkao.com/2018-08/zhoulian/2018080113560347333.jpg?sign=a2515e1f47e5981d449eb97809906a0a&t=62d08092" />
A、Compilation fails.
B、The code compiles and the output is 2.
C、If lines 16， 17 and 18 were removed， compilation would fail.
D、If lines 24， 25 and 26 were removed， compilation would fail.
E、If lines 16， 17 and 18 were removed， the code would compile and the output would be 2.
F、If lines 24， 25 and 26 were removed， the code would compile and the output would be 1.
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