问题:单选题Given: What is the output?()A42B420C462D42042ECompilation fails.FAn exception is thrown at runtime.
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问题:单选题A programmer has an algorithm that requires a java.util.List that provides an efficient implementation of add(0, object), but does NOT need to support quick random access. What supports these requirements?()A java.util.QueueB java.util.ArrayListC java.util.LinearListD java.util.LinkedList
问题:单选题Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?()ALine 5BLine 6CLine 7DLine 8ELine 9FLine 10
问题:多选题Click the Exhibit button. Which three code fragments, added individually at line 29, produce the output 100?()An = 100;Bi.setX( 100 );Co.getY().setX( 100 );Di = new Inner(); i.setX( 100 );Eo.setY( i ); i = new Inner(); i.setX( 100 );Fi = new Inner(); i.setX( 100 ); o.setY( i );
问题:单选题Given that t1 is a reference to a live thread, which is true?()A The Thread.sleep() method can take t1 as an argument.B The Object.notify() method can take t1 as an argument.C The Thread.yield() method can take t1 as an argument.D The Thread.setPriority() method can take t1 as an argument.E The Object.notify() method arbitrarily chooses which thread to notify.
问题:单选题Given: What is the result when the go( ) method is invoked?()A00B0001C000120D00012021ECompilation fails.FAn exception is thrown at runtime.
问题:多选题Given: Which two code fragments, inserted independently at line 13, will compile?()Asuper(name, baseSalary);Bthis.commission = commission;Csuper();this.commission = commission;Dthis.commission = commission;super();E super(name, baseSalary);this.commission = commission;Fthis.commission = commission;super(name, baseSalary);Gsuper(name, baseSalary, commission);
问题:单选题Given: What is the result?()ACompilation fails.BAn exception is thrown at runtime.C[608, 609, 610, 612] [608, 610]D[608, 609, 610, 612] [608, 609, 610]E[606, 608, 609, 610, 612] [608, 610]F[606, 608, 609, 610, 612] [608, 609, 610]
问题:多选题Which three statements are true?()AA final method in class X can be abstract if and only if X is abstract.BA protected method in class X can be overridden by any subclass of X.CA private static method can be called only within other static methods in class X.DA non-static public final method in class X can be overridden in any subclass of X.EA public static method in class X can be called by a subclass of X without explicitly referencing the class X.FA method with the same signature as a private final method in class X can be implemented in a subclass of X.GA protected method in class X can be overridden by a subclass of X only if the subclass is in the same package as X.
问题:单选题Given: What is the result?()A1B2C12DCompilation fails.ENo output is produced.FAn exception is thrown at runtime.
问题:单选题Given: What is the result?()AHelloBHello WorldCCompilation fails.DHello World 5EThe code runs with no output.FAn exception is thrown at runtime.
问题:单选题Given: Which regular expression, inserted at line 12, correctly splits test into "Test A", "Test B", and "Test C"?()AString regex="";BString regex=" .";CString regex=".*";DString regex="//s";EString regex="//.//s*";FString regex="//w[/.]+";
问题:单选题Given: What is the result?()A2B24C234D246E2346FCompilation fails.
问题:多选题A company has a business application that provides its users with many different reports: receivables reports, payables reports, revenue projects, and so on. The company has just purchased some new, state-of-the-art, wireless printers, and a programmer has been assigned the task of enhancing all of the reports to use not only the company's old printers, but the new wireless printers as well. When the programmer starts looking into the application, the programmer discovers that because of the design of the application, it is necessary to make changes to each report to support the new printers. Which two design concepts most likely explain this situation?()AInheritanceBLow cohesionCTight couplingDHigh cohesionELoose couplingFObject immutability