问题No enclosing instance of type E is accessible的解决
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报错场景:No enclosing instance of type E is accessible. Must qualify the allocation with an enclosing instance of type E(e.g. x.new A() where x is an instance of E). (编译错误)
翻译后为:没有可访问的内部类E的实例,必须分配一个合适的内部类E的实例(如x.new A(),x必须是E的实例。)
错误原因:内部类是动态的,也就是开头以public class开头。而主程序是public static 。
Java中,类中的静态方法不能直接调用动态方法。只有将某个内部类修饰为静态类,然后才能够在静态类中调用该类的成员变量与成员方法。
解决办法:最简单的解决办法是将public class改为public static class.
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