Tag: JDK 2014 Is the Improvement of String.substring() in Java7 Really Reasonable? Dec 24 2014 How String in Switch Works in Java 7 Dec 20 2014 What's String.intern() Dec 15 2014 Learning JDK Source Code: Positive Examples Dec 02 2014 Learning JDK Source Code: Negative Examples Dec 01 2014 How to Implement a HashMap Nov 17 2014 Uml Class Diagram of Collection and Map Nov 15 2014