03 2017 档案
摘要:如上代码返回: isAssignable方法的注释 Determines if the class or interface represented by this Class object is either the same as, or is a superclass or superinte
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摘要:如上代码运行报:Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String 原因:func方法在编译时,println方法默认用的是: pr
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