Back-link added

collaboratewithakash · web-flow · commit f7a392486183 · 2019-02-05T15:50:24.000+05:30
diff --git a/core-java-lang/README.md b/core-java-lang/README.md
@@ -38,3 +38,4 @@
 - [The Java Native Keyword and Methods](https://www.baeldung.com/java-native)
 - [If-Else Statement in Java](https://www.baeldung.com/java-if-else)
 - [Control Structures in Java](https://www.baeldung.com/java-control-structures)
+- [Java Interfaces](https://www.baeldung.com/java-interfaces)
