<Dl> <Dt> Real - time libraries </Dt> </Dl> <Dt> Real - time libraries </Dt> <P> Real time Java is a catch - all term for a combination of technologies that allows programmers to write programs that meet the demands of real - time systems in the Java programming language . </P> <P> Java's sophisticated memory management, native support for threading and concurrency, type safety, and relative simplicity have created a demand for its use in many domains . Its capabilities have been enhanced to support real time computational needs: </P>

Which of the following is not a package in the java api