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1.{}换;
2.sorry, I don't know
3.抽象 均为 public final static;
4. 参数为final不可变;
5.addOne方法是非static方法;
6.sorry, I can't find it.
7.sorry, I can't find it.
8.doSomething方法是非static方法;
9.类名和文件名要一至;
10.pX方法是非static方法;
11.Ball ball = new Ball("PingPang" ;
知道那里错了,但10不是很明白 |
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