[BAEL-9550] - Moved articles and codes from core-java-collections module to java-collections-convversions and java-collections-maps module

core-java-collections/README.md

@@ -4,37 +4,23 @@
 
 ### Relevant Articles: 
 - [Immutable ArrayList in Java](http://www.baeldung.com/java-immutable-list)
-- [Converting between an Array and a List in Java](http://www.baeldung.com/convert-array-to-list-and-list-to-array)
-- [Converting between an Array and a Set in Java](http://www.baeldung.com/convert-array-to-set-and-set-to-array)
-- [Converting between a List and a Set in Java](http://www.baeldung.com/convert-list-to-set-and-set-to-list)
-- [Convert a Map to an Array, List or Set in Java](http://www.baeldung.com/convert-map-values-to-array-list-set)
 - [Guide to the Java ArrayList](http://www.baeldung.com/java-arraylist)
 - [Random List Element](http://www.baeldung.com/java-random-list-element)
 - [Java - Combine Multiple Collections](http://www.baeldung.com/java-combine-multiple-collections)
-- [Guide to WeakHashMap in Java](http://www.baeldung.com/java-weakhashmap)
-- [Guide to the Guava BiMap](http://www.baeldung.com/guava-bimap)
-- [The Java HashMap Under the Hood](http://www.baeldung.com/java-hashmap)
-- [A Guide to LinkedHashMap in Java](http://www.baeldung.com/java-linked-hashmap)
-- [A Guide to TreeMap in Java](http://www.baeldung.com/java-treemap)
 - [Removing all nulls from a List in Java](http://www.baeldung.com/java-remove-nulls-from-list)
 - [Removing all duplicates from a List in Java](http://www.baeldung.com/java-remove-duplicates-from-list)
 - [Flattening Nested Collections in Java](http://www.baeldung.com/java-flatten-nested-collections)
 - [HashSet and TreeSet Comparison](http://www.baeldung.com/java-hashset-vs-treeset)
-- [Iterate over a Map in Java](http://www.baeldung.com/java-iterate-map)
 - [Collect a Java Stream to an Immutable Collection](http://www.baeldung.com/java-stream-immutable-collection)
-- [Converting a List to String in Java](http://www.baeldung.com/java-list-to-string)
 - [Introduction to the Java ArrayDeque](http://www.baeldung.com/java-array-deque)
 - [A Guide to HashSet in Java](http://www.baeldung.com/java-hashset)
 - [A Guide to TreeSet in Java](http://www.baeldung.com/java-tree-set)
-- [Java TreeMap vs HashMap](http://www.baeldung.com/java-treemap-vs-hashmap)
 - [How to TDD a List Implementation in Java](http://www.baeldung.com/java-test-driven-list)
-- [How to Store Duplicate Keys in a Map in Java?](http://www.baeldung.com/java-map-duplicate-keys)
 - [Getting the Size of an Iterable in Java](http://www.baeldung.com/java-iterable-size)
 - [Iterating Backward Through a List](http://www.baeldung.com/java-list-iterate-backwards)
 - [How to Filter a Collection in Java](http://www.baeldung.com/java-collection-filtering)
 - [Add Multiple Items to an Java ArrayList](http://www.baeldung.com/java-add-items-array-list)
 - [Remove the First Element from a List](http://www.baeldung.com/java-remove-first-element-from-list)
-- [How to Convert List to Map in Java](http://www.baeldung.com/java-list-to-map)
 - [Initializing HashSet at the Time of Construction](http://www.baeldung.com/java-initialize-hashset)
 - [Removing the First Element of an Array](https://www.baeldung.com/java-array-remove-first-element)
 - [Fail-Safe Iterator vs Fail-Fast Iterator](http://www.baeldung.com/java-fail-safe-vs-fail-fast-iterator)
@@ -47,12 +33,8 @@
 - [Remove All Occurrences of a Specific Value from a List](https://www.baeldung.com/java-remove-value-from-list)
 - [Thread Safe LIFO Data Structure Implementations](https://www.baeldung.com/java-lifo-thread-safe)
 - [Collections.emptyList() vs. New List Instance](https://www.baeldung.com/java-collections-emptylist-new-list)
-- [Initialize a HashMap in Java](https://www.baeldung.com/java-initialize-hashmap)
 - [Differences Between Collection.clear() and Collection.removeAll()](https://www.baeldung.com/java-collection-clear-vs-removeall)
 - [Performance of contains() in a HashSet vs ArrayList](https://www.baeldung.com/java-hashset-arraylist-contains-performance)
-- [Get the Key for a Value from a Java Map](https://www.baeldung.com/java-map-key-from-value)
 - [Time Complexity of Java Collections](https://www.baeldung.com/java-collections-complexity)
-- [Sort a HashMap in Java](https://www.baeldung.com/java-hashmap-sort)
-- [Finding the Highest Value in a Java Map](https://www.baeldung.com/java-find-map-max)
 - [Operating on and Removing an Item from Stream](https://www.baeldung.com/java-use-remove-item-stream)
 - [An Introduction to Synchronized Java Collections](https://www.baeldung.com/java-synchronized-collections)