ICSE Computer Application - Class X - 2015 PYQ

String a ="Smartphone", b="Graphic Art";
String h=a.substring(2, 5);
String k=b.substring(8).toUpperCase();
System.out.println(h);
System.out.println(k.equalsIgnoreCase(h));

 (i) Name the mathematical function which is used to find sine of an angle given in radians.
(ii) Name a string function which removes the blank spaces provided in the prefix and suffix of a string.

(i) What will this code print ?

int arr[]=new int[5];
System.out.println(arr);

1. 0
2. value stored in arr[0]
3. 0000
4. garbage value

State the package that contains the class:

1. BufferedReader
2. Scanner

char ch ;
int x=97;
do
{
    ch=(char)x;
    System.out.print(ch + " " );
    if(x%10 == 0)
    break;
    ++x;
} while(x<=100);

Write the Java expressions for:

char x='7';
y=Character.isLetter(x);

void paws(int a, int b)
{
    a=a+b;
    b=a–b;
    a=a–b;
    System.out.println(a+ "," +b);
}

Identify the literals listed below:

(i) 0.5 (ii) 'A' (iii) false (iv) "a"

Evaluate the value of n if value of p = 5, q = 19

int n = (q – p) > (p – q) ? (q – p) : (p – q);

Arrange the following primitive data types in an ascending order of their size:

(i) char (ii) byte (iii) double (iv) int

What is the value stored in variable res given below:

double res = Math.pow ("345".indexOf('5'), 3);

Define a class called ParkingLot with the following description:

Instance variables/data members:
int vno — To store the vehicle number.
int hours — To store the number of hours the vehicle is parked in the parking lot.
double bill — To store the bill amount.

Member Methods:
void input() — To input and store the vno and hours.
void calculate() — To compute the parking charge at the rate of ₹3 for the first hour or part thereof, and ₹1.50 for each additional hour or part thereof.
void display() — To display the detail.

Write a main() method to create an object of the class and call the above methods.

Write two separate programs to generate the following patterns using iteration (loop) statements:

(a)

*
*  #
*  #  *
*  #  *  #
*  #  *  #  *

(b)

5 4 3 2 1
5 4 3 2
5 4 3
5 4
5

Write a program to input and store roll numbers, names and marks in 3 subjects of n number of students in five single dimensional arrays and display the remark based on average marks as given below:

Design a class to overload a function Joystring( ) as follows: