Given: foo and bar are public references available to many other threads. foo refers to a Thread and bar is anObject.  The thread foo is currently executing bar.wait().  From another thread,what provides the most reliable wayto ensure that foo will stop executing wait()?A、foo.notify();B、bar.notify();C、foo.notifyAll();D、Thread.notify();E、bar.notifyAll();

Given: foo and bar are public references available to many other threads. foo refers to a Thread and bar is anObject.  The thread foo is currently executing bar.wait().  From another thread,what provides the most reliable wayto ensure that foo will stop executing wait()?

  • A、foo.notify();
  • B、bar.notify();
  • C、foo.notifyAll();
  • D、Thread.notify();
  • E、bar.notifyAll();

相关考题:

Given:fooandbararepublicreferencesavailabletomanyotherthreads,fooreferstoaThreadandbarisanObject.Thethreadfooiscurrentlyexecutingbar.wait().Fromanotherthread,whatprovidesthemostreliablewaytoensurethatfoowillstopexecutingwait()?()A.foo.notify();B.bar.notify();C.foo.notifyAll();D.Thread.notify();E.bar.notifyAll();F.Object.notify();

Given:Stringvalue=getServletContext().getInitParameter(foo);inanHttpServletandawebapplicationdeploymentdescriptorthatcontains:context-paramparam-namefoo/param-nameparam-valuefrodo/param-value/context-paramWhichtwoaretrue?()A.ThefooinitializationparameterCANNOTbesetprogrammatically.B.CompilationfailsbecausegetInitParameterreturnstypeObject.C.ThefooinitializationparameterisNOTaservletinitializationparameter.D.CompilationfailsbecauseServletContextdoesNOThaveagetInitParametermethod.E.Thefooparametermustbedefinedwithintheelementofthedeploymentdescriptor.

ClicktheExhibitbutton.Given:11.%com.example.Advisoradvisor=newcom.example.Advisor();%12.%request.setAttribute(foo,advisor);%Assumingtherearenootherfooattributesinthewebapplication,whichthreearevalidELexpressionsforretrievingtheadvicepropertyofadvisor?()A.${foo.advice}B.${request.foo.advice}C.${requestScope.foo.advice}D.${requestScope[foo[advice]]}E.${requestScope[foo][advice]}

Given:1.%int[]nums={42,420,4200};2.request.setAttribute(foo,nums);%3.${5+3lt6}4.${requestScope[’foo’][0]ne10div0}5.${10div0}Whatistheresult?() A.TruetrueB.FalsetrueC.Falsetrue0D.TruetrueInfinityE.FalsetrueInfinity

Given:Which three methods, inserted individually at line 14, will correctly complete class Two?() A.int foo() { /* more code here */ }B.void foo() { /* more code here */ }C.public void foo() { /* more code here */ }D.private void foo() { /* more code here */ }E.protected void foo() { /* more code here */ }

Given:Which code, inserted at line 16, will cause a java.lang.ClassCastException?() A.Alpha a = x;B.Foo f = (Delta)x;C.Foo f = (Alpha)x;D.Beta b = (Beta)(Alpha)x;

Given:Which code, inserted at line 15, allows the class Sprite to compile?() A.Foo { public int bar() { return 1; }B.new Foo { public int bar() { return 1; }C.new Foo() { public int bar() { return 1; }D.new class Foo { public int bar() { return 1; }

Given:fooandbararepublicreferencesavailabletomanyotherthreads.fooreferstoaThreadandbarisanObject.Thethreadfooiscurrentlyexecutingbar.wait().Fromanotherthread,whatprovidesthemostreliablewaytoensurethatfoowillstopexecutingwait()?A.foo.notify();B.bar.notify();C.foo.notifyAll();D.Thread.notify();E.bar.notifyAll();

Given:Whichthreecodefragments,insertedindependentlyatline6,willcompile?() A.list.add(foo);B.Objecto=list;C.Strings=list.get(0);D.list=newArrayList();

Given: 3.public class MyTagHandler extends TagSupport { 4.public int doStartTag() { 5.// insert code here 6.// return an int 7.} 8.// more code here ... 18.} There is a single attribute foo in the session scope. Which three code fragments,inserted independently atline 5,return the value of the attribute?()A、Object o = pageContext.getAttribute("foo");B、Object o = pageContext.findAttribute("foo");C、Object o = pageContext.getAttribute("foo",PageContext.SESSION_SCOPE);D、HttpSession s = pageContext.getSession();Object o = s.getAttribute("foo");

Given: 6.% int[] nums = {42, 420, 4200}; 7.request.setAttribute("foo", nums); % Which two successfully translate and result in a value of true?()A、${true or false}B、${requestScope[foo][0]  500}C、${requestScope[’foo’][1] = 420}D、${(requestScope[’foo’][0] lt 50)  (3 gt 2)}

Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map,which two are valid invocations of function foo?()A、${func(1)}B、${foo:func(4)}C、${func:foo(2)}D、${foo(5):func}E、${func:foo("easy")}F、${func:foo("3").name}

Given:  foo and bar are public references available to many other threads, foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait().  From another thread, what provides the most reliable way to ensure that foo will stop executing wait()?()A、foo.notify();B、bar.notify();C、foo.notifyAll();D、Thread.notify();E、bar.notifyAll();F、Object.notify();

Given:  8.int index = 1:  9.Boolean [] test = new boolcan [3];  10.boolcan foo = test [index];   What is the result()?  A、 foo has the value of 0.B、 foo has the value of null.C、 foo has the value of true.D、 foo has the value of false.E、 An-exception is thrown.F、 The code will not compile.

Given the JSP code: % request.setAttribute("foo", "bar"); %and the Classic tag handler code: 5. public int doStartTag() throws JspException { 6. // insert code here 7. // return int 8. } Assume there are no other "foo" attributes in the web application. Which invocation on the pageContextobject,inserted at line 6,assigns "bar" to the variable x?()A、String x = (String) pageContext.getAttribute("foo")B、String x = (String) pageContext.getRequestScope("foo")C、It is NOT possible to access the pageContext object from within doStartTagD、String x = (String) pageContext.getRequest().getAttribute("foo")E、String x = (String) pageContext.getAttribute("foo", PageContext.ANY_SCOPE)

Given the HttpServlet code:   getServletContext().setAttribute(“foo”, “value”); What is the result?()A、 The attribute foo is placed in the applicationB、 A ServletContextListener registered for that servlet is notifiedC、 A ServletAttributeListener registered for that servlet is notifiedD、 An HttpSessionAttributeListener registered for that servlet is notified

多选题Given:   10. class One {   11. void foo() { }   12. }   13. class Two extends One {   14. //insert method here   15. }   Which three methods, inserted individually at line 14, will correctly complete class Two?()Apublic void foo() { /* more code here */ }Bprivate void foo() { /* more code here */ }Cprotected void foo() { /* more code here */ }Dint foo() { /* more code here */ }Evoid foo() { /* more code here */ }

多选题Given: Which three methods, inserted individually at line 14, will correctly complete class Two?()Aint foo() { /* more code here */ }Bvoid foo() { /* more code here */ }Cpublic void foo() { /* more code here */ }Dprivate void foo() { /* more code here */ }Eprotected void foo() { /* more code here */ }

多选题Given: String value = getServletContext().getInitParameter("foo"); in an HttpServlet and a web applicationdeployment descriptor that contains: foo frodo Which two are true?()AThe foo initialization parameter CANNOT be set programmatically.BCompilation fails because getInitParameter returns type Object.CThe foo initialization parameter is NOT a servlet initialization parameter.DCompilation fails because ServletContext does NOT have a getInitParameter method.EThe foo parameter must be defined within the  element of the deployment descriptor.

多选题Given: 6. Which two successfully translate and result in a value of true?()A${true or false}B${requestScope[foo][0]  500}C${requestScope[’foo’][1] = 420}D${(requestScope[’foo’][0] lt 50)  (3 gt 2)}

单选题Given:  8.int index = 1:  9.Boolean [] test = new boolcan [3];  10.boolcan foo = test [index];   What is the result()?A foo has the value of 0.B foo has the value of null.C foo has the value of true.D foo has the value of false.E An-exception is thrown.F The code will not compile.

单选题Given:  foo and bar are public references available to many other threads, foo refers to a Thread and bar is an Object. The thread foo is currently executing bar.wait().  From another thread, what provides the most reliable way to ensure that foo will stop executing wait()?()Afoo.notify();Bbar.notify();Cfoo.notifyAll();DThread.notify();Ebar.notifyAll();FObject.notify();

单选题Given an EL function foo, in namespace func, that requires a long as a parameter and returns a Map, which two are valid invocations of function foo?()A ${func(1)}B ${foo:func(4)}C ${func:foo(2)}D ${foo(5):func}E ${func:foo(“easy”)}F ${func:foo(“3”).name}

多选题Given: String value = getServletContext().getInitParameter("foo"); in an HttpServlet and a web applicationdeployment descriptor that contains: foo frodo Which two are true?()AThe foo initialization parameter CANNOT be set programmatically.BCompilation fails because getInitParameter returns type Object.CThe foo initialization parameter is NOT a servlet initialization parameter.DCompilation fails because ServletContext does NOT have a getInitParameter method.EThe foo parameter must be defined within the  element of the deployment descriptor.

单选题Given the HttpServlet code:   getServletContext().setAttribute(“foo”, “value”); What is the result?()A The attribute foo is placed in the applicationB A ServletContextListener registered for that servlet is notifiedC A ServletAttributeListener registered for that servlet is notifiedD An HttpSessionAttributeListener registered for that servlet is notified

单选题Given: foo and bar are public references available to many other threads. foo refers to a Thread and bar is anObject.  The thread foo is currently executing bar.wait().  From another thread,what provides the most reliable wayto ensure that foo will stop executing wait()?Afoo.notify();Bbar.notify();Cfoo.notifyAll();DThread.notify();Ebar.notifyAll();

单选题Given: Which code, inserted at line 16, will cause a java.lang.ClassCastException?()A Alpha a = x;B Foo f = (Delta)x;C Foo f = (Alpha)x;D Beta b = (Beta)(Alpha)x;