java paper mock 2

7/26/2019 Java Paper Mock 2

1/11

[30] Which exception may be thrown if the given code is executed giving 2 integer runtime

arguments

class sample{

public static void main(tring args[]!

{try

{

int a"#nteger$parse#nt(args[0]!% int b"#nteger$parse#nt(args[&]!%

int c " a ' b%

ystem$out$println(um is 'c!%

) catch(*rithmetic+xception ae!

{ ystem$out$println(*rithmetic +xception 'ae$get,essage(!!% )

catch(-umber.ormat+xception ne!

{ ystem$out$println(-umber .ormat +xception 'ne$get,essage(!!% ) catch(+xception e!

{ ystem$out$println(+xception 'e!% ))

)

/hoice a

*rithmetic+xception

/hoice b

-umber.ormat+xception

/hoice c

+xception/hoice d

-one of the above

[2] #n 1ava what is a condition that is caused by a runtime error in the program

/hoice a

validity

/hoice b

exception

/hoice c

error

/hoice d

action

[24] Which of the following is a runtime error

/hoice a


2/11

,issing semicolons

/hoice b

5ividing an integer by 6ero

/hoice c

7se of undeclared variables/hoice d

,issing of brac8ets

[29] #n ,ultithreaded programming which method is used to return the threads to runnable state

from the wait state

/hoice a

notify(!

/hoice b

resume(!/hoice c

start(!

/hoice d

:unnable(!

[2;] What classes does the 1ava system pac8age ectors hash tables random numbers date etc

/hoice c

/lasses for #nput?@utput support

/hoice d

/lasses for implementing graphical user interface

[2A] =he following statements create what type of inheritance if class B and class / are Base

classesclass * extends B extends /

{

CCCCC

)

/hoice a

ingle #nheritance

/hoice b

,ultilevel #nheritance


3/11

/hoice c

,ultiple #nheritance

/hoice d

Dierarchical #nheritance

[23] What can interfaces containE

/hoice a

,ethods

/hoice b

>ariables

/hoice c

classes

/hoice d

Both & F 2

5ate 29 1un 20&2

[22] What value is returned by the compare=o(! tring method if the 2 strings

compared are eGual

/hoicea

0

/hoice

b

&

/hoicec

=:7+

/hoice

d

&

[2&] What will be displayed as output if & contains word 1ava with method &$index@f(HaH!

/hoice a

A

/hoice b

2

/hoice c

&

/hoice d

3

[20] =he concept of inheritance is implemented in 1ava by


4/11

/hoice a

creating more than one class

/hoice b

extending two or more classes

/hoice cextending one class and implementing one or more interfaces

/hoice d

importing classes from pac8ages

[&] What is valid for static methods

/hoice a

=hey can only call other static methods$

/hoice b

=hey can only access static data$

/hoice c

=hey cannot refer to this or super

/hoice d

*ll of the above

[&4] *n expression using operators FF and II used to combine two or more relational statement

is called

/hoice a

combined expression

/hoice brelational expression

/hoice c

logical expression

/hoice d

boolean expression

[&9] What will be the output of the following code segmentint r"&00%

while(true!

{if(rJ&0!

brea8%

r"r&0%)

ystem$out$print(Kr is K'r!%

/hoice a

r is 0


5/11

/hoice b

r is &0

/hoice c

r is &00

/hoice dr is &0

[&;] Which of the following is -@= one of the looping constructs available in 1ava

/hoice a

switch

/hoice b

while

/hoice c

do

/hoice d

for

[&L] /onsider the following program code$ state the output from it

class ifif

{


{

int x"3 y"&6"L%

if(xMy!

{if (6J"y!

{

ystem$out$println(Ky is greater than 6N!%

)

else

{

ystem$out$println(K6 is greater than yN!%

)

ystem$out$println(Kx is greater than yN!%

)

else

{

if(yM6!

{

ystem$out$println(Ky is greater than 6N!%

)


6/11

)

)

)

/hoice a

6 is greater than yx is greater than y

/hoice b

y is greater than 6

x is greater than y

/hoice c

x is greater than y

x is greater than 6

/hoice d

x is greater than y

[&A] What line numbers will cause an error when you compile this code

& class ch8num

2 {3 public static void main(tring args[]!

A {

L int n"3%

; switch(n!%9 {

4 case 0 O ystem$out$print(K-o is 0N!%

case & O ystem$out$print(K-o is &N!%&0 case 2 O ystem$out$print(K-o is 2N!%

&& case 3 O ystem$out$print(K-o is 3N!%

&2 case 3 O ystem$out$print(K@ther -umberN!%brea8%&3 ) ) )

/hoice a

Pines 394&0&&

/hoice b

Pines ;4&0&&&2

/hoice c

Pines 9&0&&/hoice d

Pines &&&2

[&3] Which of the following statements do not fall in selection statement category

/hoice a


7/11

if statement

/hoice b

switch statement

/hoice c

conditional operator statement/hoice d

for construct statement

5ate 29 1un 20&2

[&2] What is the output of the following program code

class chec8{


{boolean b"true%

ystem$out$println(.alse!%

if(Qb! return%ystem$out$println(=rue!%

return%

)

)

/hoice

a

=rue

/hoiceb

.alse

/hoice

c

.alse

=rue

/hoice

d

+rror

[&&] What will be the value of b if a"2 and given the expression b"a''%

/hoice a

0

/hoice b&

/hoice c

2

/hoice d

3

[&0] What type of value will the expression (aRb! return where a"&0 and b"9$


8/11

/hoice a

9

/hoice b

&

/hoice cint

/hoice d

float

[] Which of the following are #nteger types in 1ava

/hoice a

Byte

/hoice bPong

/hoice c

hort

/hoice d

*ll of the options &23

[4] Which of the following is -@= a valid assignment statement

/hoice a

a"b"c"0%

/hoice b

a"HaH

/hoice c

0"b%

/hoice d

c"92$2L

[9] What will be the output of the following code if executed with command line arguments as

follows


9/11

if(iQ"args$length!

ystem$out$print(K K!%

)ystem$out$println(!%

)

)/hoice a

1ava

/hoice b

1ava is

/hoice c

is wonderful

/hoice d

cmdline 1ava is wonderful

[;] Which of the following is valid rule to create 1ava #dentifier names

/hoice a

#t can contain digits alphabets dollar symbol and underscore

/hoice b

#t cannot start with a underscore

/hoice c

#t cannot contain uppercase letter

/hoice d

#t can start with a digit

[L] Which of the following is -@= one of the


10/11

/hoice c

#t is networ8 application to run applets

/hoice d

#t is program that can edit applets

:eturn

[3] Which of the following /'' feature is -@= included in 1ava

/hoice a

,ultilevel inheritance

/hoice b

#nner classes

/hoice c

,ultithreading

/hoice d

@perator overloading

[2] #n @@S approach programs are divided into

/hoice a

@b


11/11

java paper mock 2

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