Research And Implementation Of Java Visual Expression And Visual Run

Although more and more programming languages and IDEs pretend to be visualized program design or visualized IDEs, but they all have insufficiency as follow:First, they only offer visualized components for the application program. And do not offer the direct support to the visual expression of object and object behavior .So, it makes very difficult and complex to develop a dynamic scene.Second, they only offer a visualized interface of IDEs, and can only inquire the current state of data object at the breakpoint during debugging period. They don't offer a dynamic view of data object and their relationship and behavior. So, it makes debugging still abstract.Therefore, our workroom have made some research on it, and have a elementary realization of Pascal, C & Java visualized virtual machine. This paper put forward a solution scheme to realize Java visual expression and visual running based on it.This subject takes Java as target language, and put forward a system structure of "script-JVM-visualized class library" to realize Java visual expression and visual running. The author have designed and realized a script language to describe visual attribute and behavior of object. And through the execution of script engine embedded in Java virtual machine to realize the running of corresponding dynamic scene. The key technology solved in this subject include: the regulation used to realize the translation from visualized script to bytecode and the executing regulation during the bytecode running on JVM, a visualized class library to support script engine and the connection scheme of script-JVM-visualized class libraryThe structure and organization of this paper is as follows: Chapter one introduces the background of before project and the application background of visualized technology used in software development environment. And research the meaning of Java visual expression and visual running. Sum up the informationshould be expressed of Java visual expression and visual running Chapter two analyses the characteristic of Java program, points out the information should be visualized in Java visual expression and visual running and the support technology to realize the visualization of these information. Chapter three analyses the main technology to realize Java visual expression and visual running and put forward a feasible solution. Chapter four introduced the whole structure of the system and the state of current project. The final Chapter put forward the direction of follow study of this subject and the use prospect of this subject.