appendix running the workshop applets and example programs invoking the wrong file should not normally be problem because all the files for given program are placed in the same subdirectory howeverif you move files by handbe careful not to inadvertently copy file to the wrong directory doing this may cause problems that are hard to trace other development systems there are many other java development systems besides sun' sdk products are available from symantecmicrosoftborlandand so on sun itself has java development system called sun one studio (it was formerly called fortethese products are generally faster and more convenient to use than the sdk they typically combine all functions--editingcompilingand execution--in single window for use with the example programs in this booksuch development systems should be able to handle java version or later many example programs (specificallythose that include user inputcannot be compiled with products designed for earlier versions of java (howeverwith minor modificationssome of which are mentioned in "overview,the java files can be made to compile with older development systems