[JAVA-621] core-java-lang-oop-inheritance module

* Creation

* Moved code from https://www.baeldung.com/java-anonymous-classes

* Moved code from www.baeldung.com/java-polymorphism

* Moved code from www.baeldung.com/java-inheritance

* Moved code from www.baeldung.com/java-variable-method-hiding

* Moved code from https://www.baeldung.com/java-type-casting

* Moved code from https://www.baeldung.com/java-super

* Moved code from www.baeldung.com/java-interfaces

* Moved code from www.baeldung.com/java-abstract-class

* Moved code from www.baeldung.com/java-inner-interfaces

* Moved article references to the new README.md

core-java-modules/core-java-lang-oop-2/README.md

@@ -3,6 +3,5 @@
 This module contains articles about Object-oriented programming (OOP) in Java
 
 ### Relevant Articles: 
-- [Anonymous Classes in Java](https://www.baeldung.com/java-anonymous-classes)
 - [Java equals() and hashCode() Contracts](https://www.baeldung.com/java-equals-hashcode-contracts)
 - [[<-- Prev]](/core-java-modules/core-java-lang-oop)[[More -->]](/core-java-modules/core-java-lang-oop-3)

core-java-modules/core-java-lang-oop-3/README.md

@@ -4,6 +4,4 @@ This module contains articles about Object-oriented programming (OOP) in Java
 
 ### Relevant Articles: 
 - [Pass-By-Value as a Parameter Passing Mechanism in Java](https://www.baeldung.com/java-pass-by-value-or-pass-by-reference)
-- [Guide to the super Java Keyword](https://www.baeldung.com/java-super)
-- [Java Interfaces](https://www.baeldung.com/java-interfaces)
 - [[<-- Prev]](/core-java-modules/core-java-lang-oop-2)[[More -->]](/core-java-modules/core-java-lang-oop-4)

core-java-modules/core-java-lang-oop-modules/core-java-lang-oop-inheritance/README.md

@@ -0,0 +1,14 @@
+## Core Java Lang OOP - Types
+
+This module contains articles about types in Java
+
+### Relevant Articles: 
+- [Java Interfaces](https://www.baeldung.com/java-interfaces)
+- [Abstract Classes in Java](https://www.baeldung.com/java-abstract-class)
+- [A Guide to Inner Interfaces in Java](https://www.baeldung.com/java-inner-interfaces)
+- [Guide to the super Java Keyword](https://www.baeldung.com/java-super)
+- [Anonymous Classes in Java](https://www.baeldung.com/java-anonymous-classes)
+- [Polymorphism in Java](https://www.baeldung.com/java-polymorphism)
+- [Guide to Inheritance in Java](https://www.baeldung.com/java-inheritance)
+- [Object Type Casting in Java](https://www.baeldung.com/java-type-casting)
+- [Variable and Method Hiding in Java](https://www.baeldung.com/java-variable-method-hiding)

core-java-modules/core-java-lang-oop-modules/core-java-lang-oop-inheritance/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>core-java-lang-oop-modules</artifactId>
+        <groupId>com.baeldung.core-java-lang-oop-modules</groupId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>core-java-lang-oop-inheritance</artifactId>
+    <name>core-java-lang-oop-inheritance</name>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>${assertj-core.version}</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <properties>
+        <assertj-core.version>3.10.0</assertj-core.version>
+    </properties>
+</project>