Java Internal classes

1. Inner class

2. The name of the inner class does not exist alone and exists according to the existence of the external class name. The name of the inner class can be the same as the name of the other class outside.

3. This this.num prints the num in the inner class.

4. Accessing the External class member variable method in the inner class

5. The internal class generates the file that is the outer class $ inner class. Class

6. There is a place where this can not appear static

7. If the outer class is not a new inner class, the inner class is not in memory. Class is when it is used to enter memory. The inner class is a separate class file

8.static class words can be changed to this. Access limitations can only be accessed by static members in external classes.

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Java Internal classes