According to estimates by Oracle, 9 million developers worldwide use Java. Tiobe estimated Software, Java is the programming language widely used in the world, has doubled the number of users C and C + +. More than 3 billion devices to run Java, and it is 97% of desktopsworldwide business use. Each year, the Java runtime to be downloaded over a billion times. This new version has several trends of computer programming in the past decade. It provides much improved support for the growing number of dynamic languages ​​is not Java (non-Java), is designed to run on Java virtual machine (Java Virtual Machine - JVM), like Scala and Groovy . It is API (application programming interface) to simplify the tasks running on multiple cores. The range of actions that programs can be done with the file system has been expanded greatly. Developers can use the version 7 of the integrated development environment (IDE) NetBeans or IntelliJ 10.5 IDEA Java to write applications 7. Oracle will update the JDeveloper IDE to support Java 7 later this year.