In this ICSE sample paper all the topics of java for ICSE computer application has been covered.

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ICSE sample paper

This paper is divided into two sections. You are to answer all the questions from section A, and any four from section B.
Section A(40 marks)
Q 1 . [5X2=10]

  1. What is function overloading? Explain with example.
  2. Differentiate entry controlled loop and Exit controlled loop.
  3. Define abstraction with example.
  4. Write two features of a constructor.
  5. Write the output of the following.
    int y=6;
    do
    { System.out.print(y++ +”.”);
    y++;
    }while(y<=12);

Q 2. [5X2=10]

  1. What is fallthrough. Explain with an example.
  2. Convert the following code to if …else.
    P=(g==9.8)?0:1
  3. Write the output of the following.
    int k=66, f=2,g=6,rank=1;
    if(k%f!=0 || k%g!=0)
    {
    rank =0;
    }
    System.out.println(“Rank=”+ rank);

  1. Convert the following code to do……while loop.
    Int Q=7, K=10;
    While (Q>2)
    {
    K+=2;
    Q–;
    }
    System.out.println(“Result=”+K);
  2. What will be the value of k after the execution of the following code?
    int a=20,k=15;
    k=k+ a++ + ++a/2;

ICSE sample paper

Q 3. [10X2=20]

  1. Differentiate between pure and impure function.
  2. Write an expression in java for ax4+by3+c
  3. String str=”ICSE Examination 2020″;
    System.out.println(Integer.valueOf(str.substring(str.length()-3))+ str.length());
    System.out.println(str.substring(0,4)+str.lastIndexOf(“a”));
  4. String str=”snv school”;
    Char c1=Character.toUpperCase(str.charAt(0));
    Char c2= Character.toUpperCase(str.charAt(str.lastIndexOf(“ “)+1));
    System.out.println(c1+ “.” +c2);
  5. Write the output of the following.
    System.out.println((x+y>x*3)?x++:y); (Assume x=15, y=5)
  1. What would be returned by Math.ceil(3.78) and Math.abs(Math.rint(-51.2))
  2. What is the purpose of the new operator?
  3. Given the String array as
    String ar[]={“English”, “Physics”, “Geography”,”Maths”, “Computers”};
    Write the output of the following.
    System.out.println((ar[1].substring(0,5)).concat(ar[2].substring(2)));
    System.out.println(ar[4].endsWith(“s”));
  4. Write any two differences in Implicit Type Casting and Explicit Type Casting.
  5. What is difference between single dimensional array and multidimensional array?

ICSE sample paper

Section B
Attempt any four programs. [4X15=60]

Q 4. Write a program to accept a string. Convert the strings to uppercase and output the number of Consecutive letter pairs that exist in the string
Sample Input: IT WAS NOT TOUGH FOR HIM TO RESIDE ABOVE THE HILL
Output: Number of Consecutive pair of characters: 6 [15]

Q 5. Write a program to overload a function print() as follows. [15]
a. void print(int a , int b ): To print the odd numbers between a and b
b. void print(char a , char b):To print all the consonants between a and b
c. void print(char ch, int n):To make the following patterns using the character stored in ch and the number stored in n.
Input: ch= @ and n=3
Output: @
@@
@@@

Q 6.
Define a class taximeter having the following description:
Data members/instance variables:
Int taxino – to store taxi number
String name – to store passenger’s name
int km – to store number of kilometres travelled
Member functions:
taximeter () — constructor 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 20
1 < km 6 Rs 6
6 km 12 Rs 12
12 km 18 Rs 14
18 km Rs 17
display()- To display the details in the following format
Taxino Name Kilometres travelled Bill amount
– – – –
Create an object in the main method and call all the above methods in it. [15]

Q 7. Write a program to input a double dimensional array and print the sum of each row. The size of the array will be given by the user.
For Example: If the array is :
2 3 5
4 7 1
9 8 6
Output:
The sum of the row 1: 10
The sum of the row 2: 12
The sum of the row 3: 23 [15]

Q 8 A cloth showroom has announced the following festival discounts on the purchase of items, based on the total cost of the items purchased.
Totalcost Discount
LessthanRs.2000 5%
Rs.2001toRs.5000 25%
Rs.5001toRs.10000
AboveRs.10000 35%
50%

Write a program to input the total cost and to compute and display the amount to be paid by the customer after availing the discount. [15]
Q 9. Design a menu driven program, that accepts an integer and displays the following menu :
i. Displays the sum of the digits of the numbers.
Example : 12
The sum of digits is: 3 [7]


ii. A number that is smaller than the sum of its factors excluding the highest factor is said to be an abundant number.
Example number: 12
Sum of its factors excluding the highest factor: 1+2+3+4+6=16
Write a program to print all abundant numbers in the range 1 to n (both inclusive), where n is to be accepted in the program. Print the output with the appropriate message. [8] ICSE sample paper

sample paper

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