... 21-04-2000 17: 30Essentials of the Java( TM) Programming Language, Part 1 http://developer .java. sun.com/developer ining /Programming/ BasicJava1/index.html Training Index Java TM ProgrammingLanguage ... /simpleHTML.html">Form</A>"); out.close(); }Note: To learn how to use the other methods available in theHttpServlet, HttpServletRequest, andHttpServletResponse classes, see The Java Tutorial trail onServlets. More ... ing /Programming/ BasicJava1/compile.htmlimport javax.servlet.http.*;public class ExampServlet extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException,...
... givenSet<?> unknownSet = new HashSet<String>(); /** Add an element t to a Set s */public static <T> void addToSet(Set<T> s, T t) { }The call below is illegal.addToSet(unknownSet, ... illegal.addToSet(unknownSet, “abc”); // illegalIt makes no difference that the actual set being passed is a set of strings; whatmatters is that the expression being passed as an argument is a set of an unknown ... guaranteed to be a set of strings, or of any type in particular.Now, considerclass Collections { <T> public static Set<T> unmodifiableSet(Set<T> set) { }} Set<?> s =...
... probably the case that no fields need to be fixed. There are Effective Java: ProgrammingLanguage Guide 7 This book uses a few technical terms that are not defined in The JavaLanguage Specification. ... Effective Java: ProgrammingLanguage Guide 25 //Broken - violates symmetry! public boolean equals(Object o) { if (o instanceof CaseInsensitiveString) return s.equalsIgnoreCase( ((CaseInsensitiveString)o).s); ... These goals are impossible to achieve in the absence of well-designed APIs for the components of the system. No language is perfect, but some are excellent. I have found the Javaprogramming language...
... make the most effective use of the Javaprogramming language and its fundamental libraries, java. lang, java. util, and, to a lesser extent, java. io. The book discusses other libraries from ... Effective Java: ProgrammingLanguage Guide 25 //Broken - violates symmetry! public boolean equals(Object o) { if (o instanceof CaseInsensitiveString) return s.equalsIgnoreCase( ((CaseInsensitiveString)o).s); ... CaseInsensitiveString class in Item 7: public int compareTo(Object o) { CaseInsensitiveString cis = (CaseInsensitiveString)o; return String.CASE_INSENSITIVE_ORDER.compare(s, cis.s); }...