Object-OrientedProgrammingencapsulates:
A.Dataandmethods.B.Informationhiding.
C.Classes.D.Adjectives
IfclassAextendsB,then:
A.ClassAisthebaseclass.B.ClassAisthe
superclass.
C.ClassAinheritsfromclassB.D.ClassBisthederived
class.
Whatwillhappenifyoutrytocompileandrunthefollowing
code
publicclassMyClass{
publicstaticvoidmain(Stringarguments[]){
amethod(arguments);
}
publicvoidamethod(String[]arguments){
System.out.println(arguments);
System.out.println(arguments[1]);
}
}
A)errorCantmakestaticreferencetovoidamethod.
B)errormethodmainnotcorrect
C)errorarraymustincludeparameter
D)amethodmustbedeclaredwithString
Aninstancevariablehaswhichofthefollowingscopes?
A.Blockscope.B.Methodscope.
C.Classscope.D.Noneoftheabove.
Whichofthefollowingstatementsaboutarraysaretrue?
(1).Arraysareagroupofcontiguousmemorylocations,wher
eachlocationisanelement.
(2).Elementsarelocatedbysubscriptorindex.
(3).Thelengthofarraycisdeterminedbytheexpression
c.length();
(4).Theseventhelementofarraycisspecifiedbyc[7].
A.(1),(3),(4)B.(1),(2)C.(3),(4)D.(1),(2),(3),(4)
.Apackageis:
A.Adirectorystructureusedtoorganizeclassesandinterfaces.
B.Amechanismforsoftwarereuse.
C.Agroupofrelatedclassesandinterfaces.
D.Alloftheabove.
Constructors:
A.Havethesamenameastheclass.
B.Maynotspecifyareturntype.
C.Arecalledautomaticallywhenanobjectisinstantiated.
D.Alloftheabove.
Aninstancevariableishiddeninthescopeofamethodwhen
A.Theinstancevariablehasthesamenameasthemethod.
B.Theinstancevariablehasthesamenameasalocalvariable
inthemethod.
C.Theinstancevariablehasthes