add the readme

dbc2201 · dbc2201 · commit ec03bc84fe35 · 2022-05-13T23:27:52.000+05:30
diff --git a/README.md b/README.md
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+# Java Coding Problems
+
+## Chapter 1: Strings, Numbers, and Math
+
+---
+
+### Problem Statement
+
+Write a program that counts duplicate characters from a given `String`.
