How a CT system works. 1  A motorized table moves the patient (Figure 3) through a circular opening in the CT imaging system. 2  As the patient passes through the CT imaging system, a source of x rays rotates around the inside of the circular opening. A single rotation takes about 1 second.
Static blocks are mainly used for initialization of static variables of class which you can't do with the help of constructors. Here are some rules which governs functioning of static blocks:-. 1) They are called when a class is loaded into the JVM. 2) They are executed in the order which they appear in the class. 3) They are executed only once. 4) They are used as class level members only - which means you CANNOT put them inside any methods.
Java is also used to create miniature, dynamic programs that run alongside or are embedded within Web pages. These programs are called applets and can be used to display maps, weather, games or other interactive widgets or tools on a Web page. Based on a C and C++-based syntax, Java is object-oriented and class-based. Developers adopt and use Java because code can be run securely on nearly any other platform, regardless of the operating system or architecture of the device, as long as the device has a Java Runtime Environment (JRE) installed.