class Order implements Runnable { public void run （） { try { Thread.sleep （2000） ； } catch （Exception e） System.out.print（"in"） ； public static void main （String [] args） { Thread t = new Thread （new Order （）） ； t.start （） ； System.out.print （"pre "） ； try { t.join （） ； } catch （Exception e） { } System.out.print （"post"） ； 可产生哪两项结果？（） A、 pre in postB、 pre inC、 in post preD、 in pre postE、 pre post in
class Order implements Runnable { public void run （） { try { Thread.sleep （2000） ； } catch （Exception e） System.out.print（"in"） ； public static void main （String [] args） { Thread t = new Thread （new Order （）） ； t.start （） ； System.out.print （"pre "） ； try { t.join （） ； } catch （Exception e） { } System.out.print （"post"） ； 可产生哪两项结果？（）
- A、 pre in post
- B、 pre in
- C、 in post pre
- D、 in pre post
- E、 pre post in
相关考题：
()a conscientious student,he never comes to class without preparing his lessons well. A、To beB、To have beenC、BeingD、In order to be
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单选题You are creating a Windows Communication Foundation （WCF） service to process orders. The data contract for the order is defined as follows. [DataContract] public class Order { [DataMember] public string CardHolderName { get； set； [DataMember] public string CreditCardNumber { get； set； } }You have the following requirements： "Enable the transmission of the contents of Order from the clients to the service. "Ensure that the contents of CreditCardNumber are not sent across the network in clear text. "Ensure that the contents of CreditCardNumber are accessible by the service to process the order. You need to implement the service to meet these requirements. What should you do？（） For interactive and self-paced preparation of exam 70-513， try our practice exams. Practice exams also include self assessment and reporting features!A Add a DataProtectionPermission attribute to the CreditCardNumber property and set the ProtectData property to true.B Convert the DataContract to a MessageContract and set the ProtectionLevel property to SignAndEncrypt.C Change the data type of CreditCardNumber from string to SecureString.D Implement the CreditCardNumber property getter and setter.
单选题Which interface must a class implement so that instances of the class are notified after any object is added to a session？ （）A javax.servlet.http.HttpSessionListenerB javax.servlet.http.HttpSessionValueListenerC javax.servlet.http.HttpSessionBindingListenerD javax.servlet.http.HttpSessionAttributeListener
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单选题You are creating a Windows Communication Foundation (WCF) service to process orders.The data contract for the order is defined as follows:[DataContract]public class Order{ [DataMember] public string CardHolderName { get; set; } [DataMember] public string CreditCardNumber { get; set; }}You have the following requirements: Enable the transmission of the contents of Order from the clients to the service. Ensure that the contents of CreditCardNumber are not sent across the network in clear text. Ensure that the contents of CreditCardNumber are accessible by the service to process the order.You need to implement the service to meet these requirements. What should you do?（）AAdd a DataProtectionPermission attribute to the CreditCardNumber property and set the ProtectData property to true.BConvert the DataContract to a MessageContract and set the ProtectionLevel property to SignAndEncrypt.CChange the data type of CreditCardNumber from string to SecureString.DImplement the CreditCardNumber property getter and setter In the setter, run the value of the CreditCardNumber through the MD5CryptoServiceProvider class TransformBlock method.
单选题Which class provides paging functionality for data-bound controls that implement the IPageableItemContainer interface？（）ADataPagingFieldBDataPagerCollectionCDataPagerDDataPaging
多选题You want to create a filter for your web application and your filter will implement javax.servlet.Filter. Which two statements are true？（）AYour filter class must implement an init method and a destroy method.BYour filter class must also implement javax.servlet.FilterChain.CWhen your filter chains to the next filter， it should pass the same arguments it received in its doFiltermethod.DThe method that your filter invokes on the object it received that implements javax.servlet.FilterChaincan invoke either another filter or a servlet.EYour filter class must implement a doFilter method that takes， among other things， anHTTPServletRequest object and an HTTPServletResponse object.
多选题A custom JSP tag must be able to support an arbitrary number of attributes whose names are unknown when the tag class is designed. Which two are true？ （）AA element in the echo tag LTD must have the value JSPBThe echo tag handler must define the setAttribute （String key， String value） methodCThe true element must appear in the echo tag TLDDThe class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.IterationTag interfaceEThe class implementing the echo tag handler must implement the javax.sevlet.jsp.tagext.DynamicAttributes interface
多选题Which statements about inheritance are true？（）AIn Java programming language only allows single inheritance.BIn Java programming language allows a class to implement only one interface.CIn Java programming language a class cannot extend a class and implement a interface together.DIn Java programming language single inheritance makes code more reliable.
多选题Given a class whose instances， when found in a collection of objects， are sorted by using the compareTo（） method， which two statements are true？（）AThe class implements java.lang.Comparable.BThe class implements java.util.Comparator.CThe interface used to implement sorting allows this class to define only one sort sequence.DThe interface used to implement sorting allows this class to define many different sort sequences.
单选题You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You add a ListBox control to the application. The ListBox control is data-bound to an instance of a custom collection class of the Product objects named ProductList. You need to ensure that changes to ProductList are automatically reflected in the ListBox control. What should you do? （）A Implement the INotifyPropertyChanged interface in the Product class.B Implement the IQueryableProduct interface in the ProductList class.C Extend the DependencyObject class in the Product class.DExtend the ObservableCollectionProduct class in the ProductList class.
单选题Which statement is true？（）A An anonymous inner class may be declared as final.B An anonymous inner class can be declared as private.C An anonymous inner class can implement multiple interfaces.D An anonymous inner class can access final variables in any enclosing scope.E Construction of an instance of a static inner class requires an instance of the enclosing outer class.
单选题Which interface must a class implement so that instances of the class are notified after any object is addedto a session？（）Ajavax.servlet.http.HttpSessionListenerBjavax.servlet.http.HttpSessionValueListenerCjavax.servlet.http.HttpSessionBindingListenerDjavax.servlet.http.HttpSessionAttributeListener