[BAEL-12899] - Splitted the java-strings module (#7410)

java-strings-ops/README.md

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+=========
+
+## Java Strings Cookbooks and Examples
+
+### Relevant Articles:
+- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)
+- [Convert String to int or Integer in Java](http://www.baeldung.com/java-convert-string-to-int-or-integer)
+- [Java String Conversions](https://www.baeldung.com/java-string-conversions)
+- [Check if a String is a Palindrome](http://www.baeldung.com/java-palindrome)
+- [Comparing Strings in Java](http://www.baeldung.com/java-compare-strings)
+- [Check If a String Is Numeric in Java](http://www.baeldung.com/java-check-string-number)
+- [Get Substring from String in Java](https://www.baeldung.com/java-substring)
+- [How to Remove the Last Character of a String?](http://www.baeldung.com/java-remove-last-character-of-string)
+- [Add a Character to a String at a Given Position](https://www.baeldung.com/java-add-character-to-string)
+- [Count Occurrences of a Char in a String](http://www.baeldung.com/java-count-chars)
+- [Guide to Java String Pool](http://www.baeldung.com/java-string-pool)
+- [Split a String in Java](http://www.baeldung.com/java-split-string)
+- [Common String Operations in Java](https://www.baeldung.com/java-string-operations)
+- [Convert String to Byte Array and Reverse in Java](https://www.baeldung.com/java-string-to-byte-array)
+- [Java toString() Method](https://www.baeldung.com/java-tostring)
+- [CharSequence vs. String in Java](http://www.baeldung.com/java-char-sequence-string)
+- [StringBuilder and StringBuffer in Java](http://www.baeldung.com/java-string-builder-string-buffer)