This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
Selvas, To compile a Java program you need to install the JDK. This can be downloaded from http://java.sun.com/docs/index.html. When you install the JDK, you get the compiler and the Java Runtime environment which is required to actually run a program. Hope that helps. Jane Ps ... I'm moving this to the Java Beginner discussion as it does not really involve Mock Exam errors.