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);