Case Analysis of java class structure

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Structure description

1. Class: external class, member (member inner class, static inner class), local inner class, anonymous inner class

2. Interface: API

3. []: array

4. Enum: enumerate

5. Annotation: note @ interface

6. Primitive type: basic data type

7. Void: no return value

Example

@ Testpublic void test3 () {Class C1 = Object.class; Class c2 = Comparable.class; Class c3 = String [] .class; Class c4 = int [] [] .class; Class c5 = ElementType.class; Class c6 = Override.class; Class C7 = int.class; Class C8 = void.class; Class c9 = Class.class; int [] i1 = new int [10]; int [] i2 = new int [100]; Class