ICSE Speciman Paper 2018 by CISCE
COMPUTER APPLICATIONS
(Theory)
(Two hours)
Answers to this Paper must be written on the paper provided separately.
You will
not
be allowed to write during the first
15
minutes.
This time is to be spent in reading the question paper.
The time given at t
he head of this Paper is the time allowed for writing the answers.
This Paper
is
divided into two Sections.
Attempt
all
questions from
Section A
and
any four
questions from
Section B.
The intended marks for questions or parts of questions are given in br
ackets [ ].
SECTION A (40 Marks)
Attempt
all
questions
Question 1
(a)
Name any
four
tokens
of Java
.
[2]
(b)
Give the difference between actual parameter and formal parameter
.
[2]
(c)
What is an identifier?
[2]
(d)
Write an expression in Ja
va for cos
x +
22
ab
.
[2]
(e)
What is the result produced by 2
–
10
*3
+ 100/11
?
Show
the
steps.
[2
]
Question 2
(a)
What is the difference between
local
variable and
instance
variable?
[2]
(b)
int x
=20, y = 10, z;
What is the value of z in
z = ++x * (y
–
–
)
–
y
?
Show
the
steps.
[2]
(c)
What is the purpose of default in a switch?
[2]
(d)
Give the difference between
linear
search and
binary
search.
[2]
141
ICSE Specimen Question Paper
(e)
What will be
t
he output of the following code?
float x = 7.87;
S
ystem.out.println(Math.ceil(x);
S
ystem.out.println(Math.floor(x)
;
[2]
Question 3
(a)
State the difference between
if
–
else if
ladder
and
switch…
case
.
[2]
(b)
Explain the concept of constructor overloading with an example.
[2]
(c)
What will be the output of the following program segments
?
(i)
String s = “application”;
int p = s.indexOf(„a‟);
System.out.println(p);
System.out.println(p+s);
[2]
(
ii)
String st = “PROGRAM”;
System.out.println(st.indexO
f(st.charAt(4)));
[2]
(iii)
int a = 0;
if(a>0 && a<20)
a++;
else a
—
;
System.out.println(a);
[2]
(iv)
int a=
5, b = 2,c;
if (a>b || a ! = b)
c = ++a+
—
b;
S
ystem.out.print(
c+
“ ”+a+ “ ”+b);
[2]
(v)
int i = 1;
while(i++<=1)
{
i++;
System.out.print(i
+ “ ”
);
}
System.out.print(i);
[2]
142
ICSE Specimen Question Paper
(d
)
Differen
t
iate between isUpperCase(
char
) and toUpperCase
(char).
[2]
(e
)
What is the difference between a constructor function and a member
function of a class?
[2]
(f
)
What is the difference between a static member function and a member
function which is not static?
[2]
SECTION B
(
60
Marks
)
Attempt
any four
questions from this Section.
The answers in this Section should consist of the
Pro
grams in either Blue J environment
or any program environment with Java as the base.
Each program should be written
using
Variable descriptions/Mnemonic Codes
such that the logic of the program is
clearly depicted.
Flow
–
Charts and Algorithms
are not requi
red.
Question 4
Define a class taximeter having
the
following description:
Data members/instance varia
b
les
int taxino
–
to store taxi number
String name
–
to store passenger’s name
int km
–
to store number of kilometre
s tr
avelled
Member functions:
t
aximeter()
—
const
ructor to initialize taxino to 0, name to “ ”and b to 0
.
input()
–
to store taxino,name,km
calculate()
–
to calculate bill for a customer according to given conditions
kilometers travelled(km)
Rate/km
1 km
Rs
25
1
km
6
Rs 10
6
<
km
12
Rs 15
12
< km
18
Rs 20
>
18
km
Rs 25
display()
–
To display the detail
s
in the following format
Taxino
Name Kilometre
s travelled
B
ill a
mount
–
–
–
–
Create an
ob
j
ect
in the
main
method
and
call
all
the above methods
in it
.
[15]
143
ICSE Specimen Question Paper
Question 5
Write a menu driven program to find the sum of the following series depending on
the
user choosing 1 or 2
1.
S=
1/4+1/8+1/12………upto n terms
2.
S=1/1!
–
2/2!+3/3!…….upto n terms
where
!
stands for factorial of the number
and the factorial value of a number is the
product of all integers from 1 to that number, e
.
g. 5
!
= 1
2
3
4
5.
(use
switch
–
case
).
[15]
Question
6
Write a program to accept a sentence and print only the first letter
of each word of the
sentence in capital letters separated by a full stop.
Example :
INPUT
SENTENCE
:
“
This is a cat
”
OUTPUT :
T
.
I
.
A
.
C
.
[15]
Question 7
Write a
program to create an array to
store 10
integers
and
print
the
largest
integer
and
the smallest
integer in that array.
[15]
Question 8
Write a program to calculate the sum of all the prime numbers between
the range of
1 and
100.
[15]
Question 9
Write a program to store 10 names in an array. Arrange these in alphabetical order
by
sorting
. Print the sorted
list
.
Take single word names, all in capital letters,
e
.
g. SAMSON, AJAY, LUCY, etc.
[15]