kamal java paper6

7/26/2019 Kamal Java Paper6

http://slidepdf.com/reader/full/kamal-java-paper6 1/11

This is to Certify that Mr./Ms. KAMALKISHOR DASHRATHLAL PRAJAPATI of the

Study Center Atharva Institute of Inforation Te!hno"o#y havin# PR$ $%&'&&&%()* has

a++eared for the e,aination he"d on '' Jun %&'%at Ma"ad- for the Course 0JA1A0.His/her ar2s are as fo""os3

Theory Mar2s 3 )& out of 4&Pra!ti!a"/Assi#nent Mar2s 3 '4 out of %&

Tota" Mar2s 3 *4 out of '&&

5rade 3 Distin!tion

6(&7 8hi!h e,!e+tion ay 9e thron if the #iven !ode is e,e!uted #ivin# % inte#er

runtie ar#uents!"ass sa+"e

:

+u9"i! stati! void ain-Strin# ar#s67

:try

: int a;Inte#er.+arseInt-ar#s6&7<

int 9;Inte#er.+arseInt-ar#s6'7<

int ! ; a = 9<Syste.out.+rint"n-0Su is 0=!<

>

!at!h-Aritheti!?,!e+tion ae

: Syste.out.+rint"n-0Aritheti! ?,!e+tion 0=ae.#etMessa#e-< > !at!h-$u9er@orat?,!e+tion ne

: Syste.out.+rint"n-0$u9er @orat ?,!e+tion 0=ne.#etMessa#e-< > !at!h-?,!e+tion e : Syste.out.+rint"n-0?,!e+tion 0=e< >

>

>

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Aritheti!?,!e+tion

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$u9er@orat?,!e+tion

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None of the above

6%7 In JavaB hen a runtie error o!!urs hi!h of the fo""oin# ay ha++en

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!o+i"es su!!essfu""y

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+rodu!es ron# out+ut

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a9nora" terination Choi!e d

All of the above

6%47 In JavaB hi!h ?,!e+tion ty+e is !aused 9y an atte+t to a!!ess a none,istent fi"e

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FileNotFoundException

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IO?,!e+tion

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Inva"id@i"e?,!e+tion

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IO?,!e+tion

6%*7 In Mu"tithreaded +ro#rain#B hi!h ethod is used to transfer !ontro" to anotherthread of eua" +riority 9efore its turn !oes

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yield()

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resue- Choi!e !

ait-

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notify-

6%)7 To !reate a +a!2a#e hat is the first stateent in!"udedE

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i+ort Fava.a=.G<

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package

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+u9"i!

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C"ass



6%7 8hi!h of the fo""oin# ste+ is inva"id for !reatin# a +a!2a#e

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De!"are the +a!2a#e in 9e#innin# of the fi"e

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Define the !"asses to 9e +ut in the +a!2a#e de!"are it +u9"i!Choi!e !

Create the "istin# as Fava in the Su9dire!tory 9y +a!2a#e enu

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Execute this java file

6%7 The fo""oin# stateents !reate hat ty+e of inheritan!e if !"ass and !"ass C are

ase !"asses

!"ass A e,tends e,tends C:

>

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Sin#"e Inheritan!e

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Mu"ti"eve" Inheritan!e

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Multiple Inheritance

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Hierar!hi!a" Inheritan!e

6%(7 8hat 2eyord is used to inherit an interfa!e

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extends

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i+"eents

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inherits

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6%%7 8hi!h Strin# ethod is used to !o+are % strin#s !onsiderin# any !ase

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eua"s

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eua"to

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eualsIgnore!ase

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eua"s!ase-

6%'7 8hi!h of the fo""oin# is +ossi9"e usin# 1e!tor !"ass

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It is used to store o9Fe!ts

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It !an store o9Fe!ts that ay vary in sie

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It is +ossi9"e to add de"ete

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All of "hree

6%&7 In ethod de!"aration stateentsB hi!h of the fo""oin# is o+tiona"

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Method nae

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Return ty+eB Paraeter "ist and 9ody of ethod

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#ara$eter list

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6'7 8hi!h of the fo""oin# for of Inheritan!e one dervied !"ass is derived fro aderived !"ass.

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Sin#"e Inheritan!e

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Multilevel Inheritance

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Hierar!hi!a" Inheritan!e

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Mu"ti+"e Inheritan!e

6'47 An e,+ression usin# o+erators and NN used to !o9ine to or ore re"ationa"

stateent is !a""ed



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!o9ined e,+ression

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relational expression

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9oo"ean e,+ression

6'*7 Identify "ine nu9ers here "o#i!a" errors o!!ur in the fo""oin# !ode so that

fa!toria" of is !a"!u"ated.' !"ass fa!toria"

% :

( +u9"i! stati! void ain-Strin# ar#s67 :

int n;&Bfa!t;&<

) for-int n;&<n;'<n* fa!t;fa!tG'<

4 Syste.out.+rint"n-@a!toria" of is Q=fa!t<

>

'& >

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"ines B)

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"ines )

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lines %&'&

6')7 8hi!h of the fo""oin# +ortion s+e!ified in the for "oo+ is !o+u"sary

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initia"iation

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test condition

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in!reent

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A"" of the a9ove

6'7 Consider the fo""oin# +ro#ra !ode. state the out+ut fro it!"ass ifif



Syste.out.+rint"n-oneQ<

e"se

if -r ;; %Syste.out.+rint"n-toQ<

e"se

Syste.out.+rint"n-threeQ<Choi!e a

ero

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one

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t*o

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Three

6'(7 8hi!h of the fo""oin# is True ith res+e!t to 9ran!hin# stateents if sit!h

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every if state$ent can be *ritten using s*itch

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every sit!h stateent ust have a defau"t !ase

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every !ase ust end ith a 9rea2 stateent

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every !ase "a9e" fo""os ith a-3 !o"on

6'%7 (. 8hat is the resu"t if the !ode of stateents are e,e!uted

int resu"t ; -%G-4G-='&G%<

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4

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+,

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'

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6''7 8hat is the va"ue of the e,+ression a9NN9a if a is % and 9 is '

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'

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%

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&

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"-.E

6'&7 8hat is the va"ue of the e,+ression Math.f"oor-'.)*

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'.)

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'

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%

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/0%

67 8hi!h of the fo""oin# is $OT one of the !"assifi!ation of Java varia9"es

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Instan!e varia9"es

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block variables

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!"ass varia9"es

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647 8hi!h of the fo""oin# is a +riitive Data ty+e in Java

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!haracter

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C"asses

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Arrays Choi!e d

Interfa!e

6*7 8hat i"" 9e the out+ut of the fo""oin# !odeB if e,e!uted ith !oand "inear#uents as fo""os

Fava !d"ine Java is onderfu"

!"ass !d"ine



:

+u9"i! stati! void ain-Strin# ar#s67

:for-int i;'<iar#s."en#th<i==

:

Syste.out.+rint-ar#s6i7<if-i;ar#s."en#th

Syste.out.+rint- <

>Syste.out.+rint"n-<

>

>

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Java

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Java isChoi!e !

is onderfu"

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c$dline 1ava is *onderful

6)7 8hi!h of the fo""oin# is a Java 2eyord

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2tring

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su+er

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Mod

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?,!e+tion

67 8hi!h of the fo""oin# is $OT a Java 2eyord

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thros

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hi"e

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Exception



67 8hi!h of the fo""oin# feature of C== is $OT su++orted 9y Java and is therefore

i+"eented usin# interfa!es

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$ested C"asses

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Inner C"asses

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Po"yor+his

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Multiple Inheritance

6(7 Java is P"atforinde+endentB 8hat stateent e,+"ain this feature

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1ava progra$s can be easily $oved fro$ one co$puter syste$ to another

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Java systes verify eory a!!ess and virus

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Java !an 9e used to !reate a++"i!ations on the netor2s

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It +rovides any safe#uards to ensure re"ia9"e !ode

6%7 In OOP a++roa!h +ro#ras are divided into

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3bjects Choi!e 9

Methods

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@un!tions

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Pro!edures

6'7 OOP treats hat as a !riti!a" e"eent in +ro#ra deve"o+ent and does not a""o it to

f"o free"y around the syste.

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Pro!edures

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A!tion

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4ata



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Method

kamal java paper6

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