Free Access Oracle.1z0-809.v2022-09-12.q198 Practice Test (Page 12)

Given:

From what threading problem does the program suffer?

A.deadlock

B.race condition

C.starvation

D.livelock

Given the code fragment:

What is the result?

A.[Java, J2EE, J2ME, JSTL]

B.[Java, J2EE, J2ME, JSTL, JSP]

C.null

D.A compilation error occurs.

Given the following segment of code:

Which two statements, If either were true, would make the code compile?

A.Vehicle is an interface that is implemented by the Motorcycle class.

B.motorCycle is a superclass of vehicle.

C.Vehicle and MotorCycle both implement the Transportation interface.

D.MotorCycle is an interface that implements the Vehicle class.

E.Vehicle and MotorCycle both extend the Transportation superclass.

F.Vehicle is a superclass of MotorCycle.

You want to create a singleton class by using the Singleton design pattern.
Which two statements enforce the singleton nature of the design?

A.Make the class static.

B.Override equals() and hashCode() methods of the java.lang.Object class.

C.Use a staticreference to point to the single instance.

D.Implement the Serializableinterface.

E.Make the constructor private.

Given the code fragment:

What is the result?

A.Hi removed

B.The program compiles, but it prints nothing.

C.Compilation fails.

D.An UnsupportedOperationException is thrown at runtime.

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