Test
SPD
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Preguntas del test (70)
1What are two parts of ADT?
- APrivate and Public
- BArrayList and Vector
- CQueue and Stack
- DParent and Child
- EInt and float
2Which of them has more methods?
- ASuperclass
- BSubclass
3The relationship when one class is a subclass of another is called...
- Ais-a
- Bhas-a
4The relationship when one class is defined inside the definition of another is called...
- Ahas-a
- Bis-a
- Cis-b
- Dhas-b
- Eto-c
5Redefinition of method of superclass in a subclass with the same name and number of parameters is...
- AOverride
- BOverload
- COverhead
- DUpperload
- EOverbeat
6Redefinition of method with the same name but different number of parameters is called...
- AOverload
- BOverride
- COverflow
- DUpperride
- EDownload
7If you want to call the constructor of superclass you would use....
- Asuper.
- Bsuper()
- Cthis.
- Dthis()
- Econstructor()
8If you want to call data member of superclass you would use...
- Asuper.
- Bsuper()
- Cthis()
- Dthis.
- Emethod()
9If you want to call different constructor of current class you would use...
- Athis()
- Bthis.
- Csuper()
- Dsuper.
- Ecurrent.
10If there is at least one abstract method in a class, that class is called...
- AAbstract class
- BGeneral class
- CRecursive class
- DTired class
- EVanish class
11If there are no abstract methods in the class we call that class…
- AAbstract class
- BActual class
- CSuper class
- DNon Abstract class
- EFunny class
12Which part is accessible to user ?
- APublic
- BPrivate
- CProtected
- DSocial
- EInteractive
13Is it possible to inherit from multiple classes?
- AYes
- BNo
14Is it possible to implement multiple interfaces?
- AYes
- BNo
15Every class has _____as a superclass
- AObject
- BJAVA
- CSubject
- DMain
- EString
16This method returns a string that textually represents an object
- AtoString()
- Bequals()
- CtoText()
- DtoGo()
- EhashCode()
17InstanceOf used to test ...
- AWhether an object belongs to class or not
- BWhether object is object or not
- CWhether object plays football or not
- DWhether object has parent or not
- EWhether is the biggest object or not
18What is not perfect in this code: ave = sum/count;
- ADivision by zero may occur
- BMultiplication by 1000000 is impossible in JAVA
- CSemicolon needed after =
- Dave should be written as average
- EIt is not JAVA code
19Attempt to convert a string that is not numeric to a number faults …
- ANumberFormatException
- BArithmeticException
- CSDP4IsNotASubjectException
- DDoNotSpeakException
- ESadProgrammerException
20Attempt to access array element using index less than zero folds
- AArrayIndexOutOfBoundsException
- BArithmeticException
- CGoHomeExpception
- DInputMismatchException
- EMcDonerException
21________ exception is an error normally due to programmer
- Achecked
- Bunchecked
- Cbroken
- Dcracked
22________ exception is an error normally not due to programmer
- Achecked
- Bunchecked
- Chacked
- Dfrozen
- Ecracked
23Which part is not accessible to user ?
- Aprivate
- Bshifted
- Ccontrolled
- Dbased
- Epublic
24How to handle exceptions?
- Atry{} catch(){}
- Btry{} batch(){}
- Cpoimai{}menya{}esli{}smozhesh{}
- Dfly{}catch(){}
- Ego{}home(){}
25Which of the following is not example of visibility in Java ?
- Aprivate
- Bpublic
- Cprotected
- Dpackage
- Eeclipsed
26Returns the reference to the element at position index
- Aget(index)
- Bset(index)
- Chas(index)
- DgoTo(index)
- Efly(index)
27Get the size of ArrayList
- Asize()
- Bsize(list)
- CsizeOf()
- Dlength
- Elength(list)
28Sets the element on position Index to reference entry
- Aset(index, entry)
- BsetTo(index, entry)
- Cindex.set(entry)
- Dentry.set(index)
- Eset.index(entry)
29Public xxx(int index){
return theData[index];
}
this behavior is similar to which method of ArrayList class?- Aget
- Bset
- Csize
- Dequals
30What is the time complexity of insert(index) method in ArrayList
- AO(n)
- BO(1)
- CO(logn)
- DO(n^2)
- EO(m*n)
31What is the difference between ArrayList and Vector?
- AVector is synchronized, where ArrayList is not
- BVector is scalable, where ArrayList is not
- CVector is flexible, where ArrayList is not
- DVector is resizable, where ArrayList is not
- EThere is no difference
32for(int i = 0; i < size; i++) {
If(theData[i] == entry) {
Return i;
}
Return -1;
}
This method is similar to which method of ArrayList- AindexOf(entry)
- Bget(entry)
- Cset(entry)
33Indicate constant time complexity in terms of Big-O notation
- AO(1)
- BO(n)
- CO(n^2)
- DO(const)
- EO(logn)
34The collection of abstract methods is called ...
- AInterface
- BAbstract class
- CClass
- DMethod
- EFunction
35Indicate logarithm time complexity in terms of big-O notation?
- AO(logn)
- BO(n^2)
- CO(n)
- DO(1)
- EO(done)
36Indicate linear time complexity in terms of big-O notation?
- AO(n)
- BO(n^2)
- CO(n^3)
- DO(logn)
- EO(loglogn)
37Indicate exponential time complexity in terms of big-O notation?
- AO(2^n)
- BO(n^2)
- CO(logn)
- DO(n)
- EO(n^4)
38Find the slowest time
- AO(n!)
- BO(2^n)
- CO(n)
- DO(n^4)
- EO(100)
39What is the time complexity of ArrayList remove(index) method
- AO(n)
- BO(1)
- CO(n * n)
- DO(logn)
- EO(n^3)
40What is the time complexity of adding an item in front of a LinkedList
- AO(1)
- BO(n)
- CO(n^2)
- DO(n^3)
- EO(nlogn)
41What is the time complexity of adding element in the beginning of ArrayList
- AO(n)
- BO(1)
- CO(logn)
- DO(nlogn)
- EO(n^2)
42Which method searches for target and returns its position in LinkedList?
- AindexOf(target)
- Bget(target)
- Cset(target)
- Dequal(target)
43Indicate polynomial time complexity
- AO(n^const) (const = 2,3…)
- BO(nlogn)
- CO(logn)
- DO(2^n)
- EO(1)
44How to remove item from LinkedList?
- AChange Link of previous item to next item of item to be removed
- BChange Link of next item to previous item of item to be removed
- CChange Link of removing item to next
- DChange Link of removing item to previous
- EGo home and cry
45What is attribute of CircularList
- ANext of last item referencing to the first item
- BNext of first item referencing to the last item
- CPrev of last item referencing to the last item
- DNext of best item referencing to the worst item
- EI need to go home and prepare this
46Which of the following in Java is very similar to “contract” ?
- AInterface implementation
- BClass inheritance
- CMethod overloading
- DClass overriding
47List iterator and iterator is the same thing in JAVA
- AVerdadero
- BFalso
48Is it possible to traverse containing of a list this way?
for(int nextInt : aList) {… }- AYes
- BNo
- CMay be
- DI don't know
49Show the method which exists in a DoubleLinkedList and not exist in a SingleLinkedList
- Aconstructor
- Bnext()
- ChasNext()
- Dprevious()
- EhasBefore()
50What relationship class Node and LinkedList have?
- Ais-a
- Bhas-a
- CIs-b
- Dto-c
- EThey are couple
51Which of them is NOT an example of Data Structure ?
- ABreadth First Search
- BArrayList
- CGraph
- DPriority Queue
- ESet
52Which of them is NOT feature of collection interface ?
- AGraph
- BSet
- CList
- DQueue
- EVector
53This returns TRUE if the collection contains object
- Acontains(obj)
- BIndexOf(obj)
- CIndexF(obj)
- Dfind(obj)
- EgoTo(obj)
54Elements of a List are accessed by means of an
- Aindex
- Bswitch
- Cposition
- Dloop
- Ebook
55A list can ___ or ___ as items(elements) are added or removed
- Agrow, shrink
- Bflow, shrink
- Cincrease, grow
- Ddecrease, think
- Efly, sit
56OOP stands for?
- AObject oriented programming
- BObstacle oriented programming
- CObject oriented playing
- DOmar oriented programming
57The Collection is a _____ of a List ?
- Asuperinterface
- Bparent
- Cinterface
- Dfather
- Enode
58Which method returns an object at the top of a Stack in JAVA?
- Apop()
- Bpeek()
- Cfront()
- Dpoll()
- Etop()
59Which method adds an item on the top of a Stack in JAVA?
- Apush()
- Badd()
- Cpeek()
- Dtop()
- Ebush()
60First in last out structure is ...
- AStack
- BQueue
- CGraph
- DSet
- ETree
61Which structure is widely used in finding palindrome?
- AStack
- BQueue
- CSet
- DMap
- EGraph
62Which structure is widely used to calculate the value of postfix expression?
- AQueue
- BStack
- CSet
- DGraph
- EList
63Calculate value of “4 7 * 20-“
- A8
- B1
- C136
- D144
- E3
64Ability of object of one class to act like it is an object of another class
- APolymorphism
- BEncapsulation
- CInheritance
- DJava code
- ESLOC(Source Line Of Code)
65What does method empty return for empty stack?
- ATrue
- BFalse
- CNothing
- DEmpty
- EHello
66Waiting line of people is similar to which data structure?
- AQueue
- BStack
- CTree
- DGraph
- ELinkedList
67If we call remove() function for the queue, which item will be removed
- Afirst
- Blast
- Cmiddle
- Dsecond
- Ethird
68Which function return first added item in the queue?
- Afront()
- Bfirst()
- Celement()
- DgoBack()
- EgiveMeFirst()
69Which function is used to add new item in the queue?
- Aoffer()
- Bsuffer()
- Cadd()
- Dpoll()
- Eremove()
70First-in first-out data structure ...
- AQueue
- BStack
- CSet
- DGraph
- EList
Información
- Descripción
- Test sobre SPD, creado por Hanzo Conard el 24/05/2017.
- Autor
- Hanzo Conard
- Idioma
- English
- Visitas
- 412
- Etiquetas
- Valoración
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