Difference between hashmap and hashtable?

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Suppose there are 3 combo box. SELECT COUNTRY SELECT STATE SELECT CITY if i select any country from country conutrylistbox values in the state will get automatically inserted with database values>> THEN on selection of state city will be inserted in city combo box If you can help then please Help me...

2 Answers   HCL,

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What is JasperReports?

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What is Stream and Types?

2 Answers   Patni,

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What will happens, when a thread cannot acquire a lock on an object?

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1) which method of the RequestDispatcher cannot be called once the output is sent to the client? a. forward b. include c. both a&b 2) which interface should an object implement to get notified of changes to the list of active sessions in a web application? a. HttpSessionListener b. HttpSessionActivationListener c. HttpSessionAttributeLIstener 3) A user can select multiple locations from a list box on an HTML form, which of the following methods can be used to retrieve all the selected location? a. getParameter() b. getParameterValues() c. getParamValues() 4) which of the following methods should be used to send character text to the client? a. ServletResponse.getWriter() b. ServletResponse.getOutputStream() c. ServletResponse.getOut() 5) which implicit object is always available in a JSP page? a. exception b. session c. out 6) which inclusion mechanism doesn't include the source of the page, rather the output of the page. a. include directive b. jsp:include action c. Bothe a& b 7) which attribute of the page controls whether a page participates in session or not? a. session-allowed b. session c. isSession

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Why do threads block on i/o?

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Java is fully object oriented languages or not?

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Is it possible to stop the execution of a method before completion in a sessionbean?

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How primary key is implemented in Oracle?

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Do you think that java should have had pointers?

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Explain RMI Architecture?

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