上面是李丰伯2018年发表的论文照片，下面是孙玉兵2016年发表的论文照片，两者一模一样。采访对象提供图
How can I call a class in Java, when the name of the class won\'t be known at compile time (such as if it were a plugin). For example, from a GUI, a开发者_运维问答 user selects a plugin (a Java class)
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