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”Java and JMLfor Dummies”

”Java and JMLfor Dummies”. The Java source code is written in a text file using your favourite editor (Notepad) and is saved with extension .java. Be careful not to save with extension .java.txt, but as .java. I use the JML directory (next slide).

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”Java and JMLfor Dummies”

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  1. ”Java and JMLfor Dummies” • The Java source code is written in a text file using your favourite editor (Notepad) and is saved with extension .java.Be careful not to save with extension .java.txt, but as .java.I use the JML directory (next slide). • The JML-specification is written as special comments in the source code using ‘/*@...@*/

  2. ”Java and JML for Dummies” • I save source in a directory in the JML-directory. • Be careful not to save with extension .java.txt, but as .java. • My bat-file starts this GUI. • In order to compile my JML-specs, I choose JML Runtime Assertion Checker Compiler • And the RacGUI on next slide opens.

  3. ”Java and JML for Dummies” • Choose Open File • A file browser opens, the wanted source- (.java) files in your project are selected and added. • In order to compile (to generate a .class file) and to get my JML-specs checked, I click the ”run”-button. • Note the settings: • Output on the next slide.

  4. ”Java and JML for Dummies” • During compilation a long series of messages are issued. If everything goes well , it ends with ”Done”. • Are there errors in the spec, error messages are issued.

  5. ”Java and JML for Dummies” • Errors in the Java code also result in error messages.

  6. ”Java and JML for Dummies” • Everything went well. • An executable (.class) file has been generated. • It is executed using the command ”jmlrac <class-fil>”from a prompt. The command must be issued from the directory were source and class files are placed. Note: the extension (.class) is omitted. • From here the process is described on the slides ‘JML-1.ppt’.

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