* [linkedhashmap-first-last] get first and last entry from LinkedHashMap * [linkedhashmap-first-last] add the stream approach
* Update pom.xml Update pom with the apache dependency * Update WriteHashmaptoCVSFileUnitTest.java Adding a new test method to solve the problem using Apache Commons CSV.
This commit aims to add a new Java module "core-java-collections-maps-7"