单项选择题 Thecustomerandordertablesareoftenusedinjoins，therebyresultingincomplexqueries.Youcreatedviewstosimplifythewritingofqueries.Theseviewsarestoredin（）.

单项选择题 Given：11.doubleinput=314159.26；12.NumberFormatnf=NumberFormat.getInstance（Locale.ITALIAN）；13.Stringb；14.／／insertcodehereWhichcode，insertedatline14，setsthevalueofbto314.159，26？（）

单项选择题 Awebapplicationisboundtothecontextnamed"/webapp"andtheclientusesthebrowserandmakesarequesttotheresourcehttp://server:port/webapp/ctxl/resource.Wheredoyouplacethisresourceinsidethewebapplicationstructure?（）A.inthesubdirectory/WEB-INF/ctxlB.inthesubdirectory/META-INF/ctxlC.inthesubdirectory/ctxlintherootofthearchiveD.inthesubdirectory/ctxl/resourceintherootofthearchiveE.intherootofthearchive