Description: 2, statement completion of testing polymorphisms TestStudent type of test: (1) a statement in the main method of Student class array (including the five elements). (2) to generate the object into an array of five, three of which the object of type Student, a category StudentXW object, the object of a category StudentBZ. (3) methods testScore () sent to each element of the array, the output results and analysis of the specific implementation of a class in which the method.
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.\yingyu.java
.\yingyu.txt
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