added Inner Class

Author: connectaman

.idea/workspace.xml

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README.md

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+### Java Inner Classes
+
+Java inner class or nested class is a class which is declared inside the class or interface.
+
+We use inner classes to logically group classes and interfaces in one place so that it can be more readable and maintainable.
+
+Additionally, it can access all the members of outer class including private data members and methods.
+
+##### Syntax of Inner class
+
+```java
+    class Java_Outer_class{  
+     //code  
+     class Java_Inner_class{  
+      //code  
+     }  
+    }  
+```
+
+##### Advantage of java inner classes
+
+There are basically three advantages of inner classes in java. They are as follows:
+
+1) Nested classes represent a special type of relationship that is it can access all the members (data members and methods) of outer class including private.
+
+2) Nested classes are used to develop more readable and maintainable code because it logically group classes and interfaces in one place only.
+
+3) Code Optimization: It requires less code to write.
+
+-------------
+
+#####Difference between nested class and inner class in Java
+
+Inner class is a part of nested class. Non-static nested classes are known as inner classes.
+Types of Nested classes
+
+There are two types of nested classes non-static and static nested classes.The non-static nested classes are also known as inner classes.
+
+  1- Non-static nested class (inner class)
+  
+        - Member inner class
+        - Anonymous inner class
+        - Local inner class
+   2- Static nested class
+
+
+----------
+
+|Type|	Description|
+|-----|-------|
+|Member Inner Class	|A class created within class and outside method.|
+|Anonymous Inner Class|	A class created for implementing interface or extending class. Its name is decided by the java compiler.|
+|Local Inner Class	|A class created within method.|
+|Static Nested Class|	A static class created within class.|
+|Nested Interface	|An interface created within class or interface.|
+
+