Java 7 is an upcoming major update to Java, releasing on July 28, its upgrade/add many features. Upgraded Features - Java 7 update the XML and Web Service stack to current stable build JAXP 1.4, JAXB 2.2 and JAX-WS 2.2. - Update the Nimbus Look and Feel (Next Cross Platform UI). Its already added Java 6 Update 10. check here - Translucent and shaped Windows This feature is also included in java 6 update 10. this features provide to create transparent and any shape window in java. for more info check this New features in java 7 Small languages changes (Project Coin Part 1) Project Coin is one of the project in java 7 for java language spec (JLS). Project Coin have 2 parts. the first part is add to java 7. and next part is comes with java 8 in next year (2012). Binary literals and underscore in numeric literals now we can assign binary values directly. the output of above code snippets is 32 and 1900000 Strings in switch statement