Installing Java 8 and Tomcat 8 on Debian Jessie or Raspbian or RedHat

Apache Tomcat is a Servlet/JSP container and version 8.0 implements the Servlet 3.1 and JavaServer Pages 2.3 specifications. Please note that Apache Tomcat 8.0 requires a Java Standard Edition Runtime Environment (JRE) version 7 or later. So we start with installing a recent version of Oracle’s JRE. Install Oracle JRE 8 on Debian Linux (or Raspbian) […]

How private are private fields after all?

Last week, I sent the following brain teaser:

Can you write a void hack(Object obj) method that would change foo’s private member variable, so that the output looked like this? Psst: 74 A sharp developer came up with this solution:

Now there you have it. Just because a member is declared private doesn’t mean […]