`
xlover
  • 浏览: 244447 次
  • 性别: Icon_minigender_1
  • 来自: 北京
社区版块
存档分类
最新评论

Java编译错误“No enclosing instance of type AA is accessible. Must qualify the alloc

    博客分类:
  • java
 
阅读更多
这是因为AA是一个动态的内部类,创建这样的对象必须有实例与之对应,程序是在静态方法中直接调用动态内部类会报这样错误。   这样的错误好比类中的静态方法不能直接调用动态方法。可以把该内部类声明为static。或者不要在静态方法中调用。

那么为啥非静态方法不能调用动态方法呢,从面向对象的角度来说,动态方法与对象是联系密切的,比如发动是一个方法,它与汽车这个对象是关联的,所以只有new了汽车这个对象才能执行汽车.发动
分享到:
评论

相关推荐

    Java解决No enclosing instance of type PrintListFromTailToHead is accessible问题的两种方案

    Java编程语言中的"No enclosing instance of type"错误通常发生在尝试创建非静态内部类的实例,但没有一个外部类的实例可以访问时。在上述示例中,`ListNode`是`PrintListFromTailToHead`类的非静态内部类。由于`...

    java编译中存在的问题及原因分析

    在Java中,当你尝试在静态上下文中创建非静态内部类的对象时,会遇到以下错误信息:“No enclosing instance of type EmployeeTest is accessible. Must qualify the allocation with an enclosing instance of type...

    2009 达内Unix学习笔记

    集合了 所有的 Unix命令大全 ...telnet 192.168.0.23 自己帐号 sd08077-you0 ftp工具 192.168.0.202 tools-toolss ... 各个 shell 可互相切换 ksh:$ sh:$ csh:guangzhou% bash:bash-3.00$ ... 命令和参数之间必需用空格隔...

    Google C++ Style Guide(Google C++编程规范)高清PDF

    On the other hand, you must include the header file for Foo if your class subclasses Foo or has a data member of type Foo. Sometimes it makes sense to have pointer (or better, scoped_ptr) members ...

    Secrets of the JavaScript Ninja, 2nd Edition

    Generators are a special type of function that can pause and resume execution, allowing the generation of values on demand. They use the `yield` keyword to produce a sequence of values. For instance: ...

    Mask 98 for PRwin98

    is just a sample of the Windows 95/98 type enhancements Calmira provides to the Windows 3.1 user interface... Taskbar with versatile Start Menu, nested to any level Wastepaper bin to store deleted ...

    max200技术手册

    数控等离子切割技术资料The user is responsible for installing and using the plasma equipment according to the manufacturer’s instructions. If electromagnetic disturbances are detected then it shall be...

    Using LUA with Visual C++ (Introduction)

    The first parameter is the pointer to the LUA state, the second parameter is the number of arguments on the stack that the command takes (and when executing a loaded script this can remain 0)....

    The Java Module System

    Java模块系统是Java平台标准版(Java SE)9及更高版本引入的一项重要特性,它旨在解决大型应用程序的可维护性、可伸缩性和安全性问题。这个系统,也被称为Project Jigsaw,通过提供一种结构化的方式来组织和管理Java...

    embedded system design

    products in the area of consumer electronics the amount of code is doubling every two years [Vaandrager, 1998]. This importance of embedded systems is so far not well reflected inmany of the current ...

    SCJP6 Sun Certificated Programmer for Java 6 Study Guide (Exam 310-065) 英文原版

    Inner classes can access private members of the enclosing class: - **Member Inner Classes**: Declared inside a class but outside any method. - **Local Inner Classes**: Declared inside a method. - **...

    Borland Delphi 2005 Architect Update 3

    F2084 Internal Error SCR765.00 of 5 Closed11193 Inlined function affects working of the enclosing for loop0.00 of 5 Closed11184 [Fatal Error] F2084 Internal Error: ILLK26340.00 of 5 Closed11069 ...

    Fractions to Decimals

    Write a program that will accept a fraction of the form N/D, where N is the numerator and D is the denominator and print the decimal representation. If the decimal representation has a repeating ...

    Android Studio无法执行Java类的main方法问题及解决方法

    Android Studio升级到哦最新版3.6.1后,新建了个项目,发现无法执行Java类的main方法。试了网上的各种方法,比如切换gradle离线模式、gradle.properties中添加android.enableAapt2=false等,我还尝试了重新情况...

    Shell Script

    Here, `date` inside backticks is executed first to get the current date, which is then printed as part of the sentence. #### Arithmetic Operations in Shell Scripts Shell scripts can perform ...

    Android 中LayoutInflater.inflate()方法的介绍

    Android 中LayoutInflater.inflate()方法的介绍 Android 中LayoutInflater.inflate()方法是Android开发中最常用的方法之一,用于将布局文件转换成View对象。该方法是LayoutInflater类中的一个成员方法,主要用于将...

    Eclipse Template与模式

    private static final ${enclosing_type} m_instance = new ${enclosing_type}(); /** * 私有的默认构造子 */ private ${enclosing_type}() {} /** * 静态工厂方法 */ public static ${enclosing_type}...

    Java的注释

    ### Java的注释 在Java开发中,良好的注释习惯对于提高代码的可读性和可维护性至关重要。本文将详细介绍几种常见的Java注释方式及其用途,并通过实例展示如何设置Eclipse IDE中的注释模板,帮助开发者更好地管理和...

    Eclipse Java注释模板.txt

    ### Eclipse Java注释模板知识点详解 #### 一、概述 在进行Java开发的过程中,良好的代码注释习惯不仅能帮助自己快速回顾代码逻辑,还能方便其他开发者理解代码意图,从而提高整个团队的工作效率。Eclipse作为一款...

Global site tag (gtag.js) - Google Analytics