Unlike the practice in China, if you're at na hotel restaurant in the United States, except a 15-20 percent service charge or add the ____ amount yourself.
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The change in smoking habits ___ a change in the incidents of lung cancer. The more people smoke, the more chances of occurrance for lung cancer.
下面选项中哪一行代码能正确赋值( ):
A. final int num1 = 10;
B. static int num2 = 20;
C. abstract int num3 = 30;
D. private int num4 = 40;
下面选项中,哪个关键字可以修饰局部变量( ):
A. abstract
B. final
C. static
D. private
final修饰的局部变量只能被赋值____(大写)次。
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