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In Java there are four types of nested class: . Static. Static member class, also called static nested classes [1] – They are declared static.Like other things in static scope (i.e. static methods), they do not have an enclosing instance, and cannot access instance variables and methods of the enclosing class.
An inner class is typically neither associated with instances of the enclosing class nor instantiated along with its enclosing class. Depending on the language, it may or may not be possible to refer to the class from outside the enclosing class. A related concept is inner types, also known as inner data type or nested type, which is a ...
bootstrap classes: the classes that are fundamental to the Java Platform (comprising the public classes of the Java Class Library, and the private classes that are necessary for this library to be functional). extension classes: packages that are in the extension directory of the Java Runtime Environment or JDK, jre/lib/ext/
Classes are divided into top-level and nested. Nested classes are classes placed inside another class that may access the private members of the enclosing class. Nested classes include member classes (which may be defined with the static modifier for simple nesting or without it for inner classes), local classes and anonymous classes.
If the user has enabled it, the system will also write an entry to the system event log. The log entry contains information about the bug check (including the bug check code and its parameters) as well as a link that will report the bug and provide the user with prescriptive suggestions if the cause of the check is definitive and well-known.
A Java class file is a file (with the .class filename extension) containing Java bytecode that can be executed on the Java Virtual Machine (JVM).A Java class file is usually produced by a Java compiler from Java programming language source files (.java files) containing Java classes (alternatively, other JVM languages can also be used to create class files).
However, in each language these inner classes have rather different semantics. In Java, unless the inner class is declared static, a reference to an instance of an inner class carries a reference to the outer class with it. As a result, code in the inner class has access to both the static and non-static members of the outer class.
Some languages allow variable shadowing in more cases than others. For example Kotlin allows an inner variable in a function to shadow a passed argument and a variable in an inner block to shadow another in an outer block, while Java does not allow these. Both languages allow a passed argument to a function/Method to shadow a Class Field. [1]