Java Paper1

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  • 7/26/2019 Java Paper1

    1/8

    [1] Dynamic binding is associated with

    Choice a Polymorphism

    Choice b Inheritance

    Choice c Both Option1 and Option2

    Choice d Neither Option1 and Option2

    [2] Which o the ollowing is NO! !r"e with respect to OOP

    Choice a #pgrading systems is diic"lt

    Choice b $"ltiple ob%ects co&e'ists witho"t any intererence

    Choice c (ec"re Programs can be b"ilt

    Choice d (otware de)elopment is made easy

    [*] +PI stands or

    Choice a +pplet

    Program

    Internet

    Choice b +pplication

    Pac,age

    Inormation

    Choice c +bstractProgrammin

    g Interace

    Choice d +pplication

    Programmin

    g Interace

    [-] Which o the ollowing eat"re in C is NO! incl"ded in

    .a)aChoice a Brea,

    statement

    Choice b Contin"e

    statement

    Choice c Pointer type

    Choice d Primiti)e

    data types

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    [/] Which o the ollowing is essential part o a .a)a Program

    Choice a Pac,et statement

    Choice b Import statement

    Choice cClass deinitions

    Choice d $ain method class

    [0] What is the right method o speciying the main method in .a)a

    Choic

    e a

    pri)ate main (tring args[]

    Choic

    e b

    p"blic static int main(tring args[]

    Choice c

    p"blic static )oid main (tring args[]

    Choic

    e d

    p"blic )oid static main (tring args[]

    [3]

    What will be the o"tp"t o the ollowing code4 i e'ec"ted

    with command line arg"ments as ollows

    %a)a cmdline .a)a is wonder"l

    class cmdline

    5p"blic static )oid main(tring args[]

    5

    orint i617i8args9length7i::

    5

    (ystem9o"t9printargs[i]7

    ii;6args9length

    (ystem9o"t9print<

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    [>] Which o the ollowing it NO! a )alid character constant

    Choice a ?'@

    Choice b ?1@

    Choice c &/&1/:227

    Choice a /

    Choice b 0>

    Choice c

    1-0

    Choice d 1*-

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    [13] Which of the following statements do not fall in selection statement category

    Choice aif statement

    Choice bswitch statement

    Choice cconditional operator statement

    Choice dfor construct statement

    [1-] What will be the o"tp"t o the ollowing code segment

    n6/7

    r6nE*7

    i r 66

    (ystem9o"t9println

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    =

    Choi

    ce a

    F is greater than y

    ' is greater than y

    Choi

    ce b

    y is greater than F

    ' is greater than y

    Choi

    ce c

    ' is greater than y

    ' is greater than F

    Choi

    ce d

    ' is greater than y

    F is greater than y

    [10]Which o the ollowing looping constr"cts body4 will e'ec"te at least once e)en i

    the condition is alse9

    Choice a or

    Choice b do

    Choice c while

    Choice d none o the abo)e9

    [13]

    What will be the o"tp"t o the ollowing code segment

    int r627

    whilerG

    5

    r6r&17

    irGcontin"e7

    (ystem9o"t9printHr is H:r7

    =

    Choice a r is 1

    Choice b r is

    Choice c r is 2

    Choice d r is 2 r is 1

    [1>] ow is it possible to ma,e it comp"lsory that a method is redeined in a s"bclass

    Choice a By ma,ing a class pri)ate

    Choice b By ma,ing a class abstract

    Choice c By ma,ing the class inal

    Choice d By ma,ing the class )irt"al

    [1] What is )alid or abstract classes and abstract methodsChoice a We cannot "se abstract classes to

    instantiate ob%ects9

    Choice b abstract methods o an abstract class

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    m"st be deined in its s"bclass9

    Choice c Constr"cters cannot be declared

    abstract

    Choice d +ll o the abo)e

    [2] !he concept o inheritance is implemented in .a)a by

    Choice a creating more than one class

    Choice b e'tending two or more classes

    Choice c e'tending one class and implementing

    one or more interaces

    Choice d importing classes rom pac,ages

    [21] Which o the ollowing (tring methods is "sed to gi)e the nth character o the

    string

    Choice a s"bstring

    Choice b replace

    Choice c char+tn

    Choice d inde'O n

    [22] Which o the ollowing are similar to the (tatic inal constants

    Choice a +nnotations

    Choice b Jectors

    Choice c Kn"merated types

    Choice d Ob%ect types

    [2*] What can interaces containL

    Choice a $ethods

    Choice b Jariables

    Choice c classes

    Choice d Both 1 M 2

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    [2-] In the Interace deinition what is !#K or method declaration

    Choice a ist o methods declaration is only done

    Choice b $ethod declaration as well as body

    Choice c Only one $ethod declaration can be done

    Choice d Only one $ethods body is allowed

    [2/] !o create a pac,age what is the irst statement incl"dedL

    Choice a import %a)a9aw:97

    Choice b pac,age

    Choice c p"blic

    Choice d class

    [20] What does the ollowing import statement act"ally mean import %a)a9awt97

    Choice

    a

    import awt class rom the %a)a pac,age

    Choice

    b

    Import all )ariables rom awt class

    Choice

    c

    Import all the classes rom the awt pac,age contained in the %a)a

    pac,age

    Choice

    d

    Import all the classes rom the %a)a pac,age

    [23]In $"ltithreaded programming4 what is to be done to ret"rn the threads to r"nnable state

    rom sleep mode

    Choice

    a

    calling method notiy

    Choice

    b

    calling method res"me

    Choice

    c

    calling method start

    Choice

    d

    nothing b"t4 let the speciied time be elapsed

    [2>] !he class K'ception is a s"bclass o which class

    Choice a Ob%ect

    Choice b !hrowable

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    Choice c !hread

    Choice d !hrow

    [2]In .a)a4 which K'ception type is ca"sed by general IO ail"res s"ch as "nable to read

    rom a ile

    Choice a In)alid+ccessK'ception

    Choice b Inp"tO"tp"tK'ception

    Choice c In)alidQileK'ception

    Choice d IOK'ception

    [*] Which e'ception may be thrown i the gi)en code is e'ec"ted gi)ing 2 integer r"ntime

    arg"ments

    class sample5

    p"blic static )oid main(tring args[]

    5

    try

    5

    int a6Integer9parseIntargs[]7

    int b6Integer9parseIntargs[1]7

    int c 6 a : b7

    (ystem9o"t9printlnH("m is H:c7

    =

    catch+rithmeticK'ception ae 5 (ystem9o"t9printlnH+rithmetic K'ception H:ae9get$essage7 =

    catchN"mberQormatK'ception ne

    5 (ystem9o"t9printlnHN"mber Qormat K'ception H:ne9get$essage7 =

    catchK'ception e

    5 (ystem9o"t9printlnHK'ception H:e7 =

    =

    =

    Choi

    ce a

    +rithmeticK'ception

    Choice b

    N"mberQormatK'ception

    Choi

    ce c

    K'ception

    Choi

    ce d

    None o the abo)e