(English Medium) ICSE Class 10 - CISCE Important Questions

What is the difference between the linear search and the binary search technique?

Write the return data type of the following function: startsWith( )

Write the return data type of the following function: random( )

If the value of basic=1500, what will be the value of tax after the following statement is executed?

tax = basic > 1200 ? 200 : 100

Write a program to input 15 integer elements in an array and sort them in ascending order using the bubble sort technique. 

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

(a) void series (int x, int n) – To display the sum of the series given below:
x¹ + x² + x³ + ……………. xⁿ terms

(b) void series (int p) – To display the following series:
0, 7, 26, 63 p terms.

(c) void series () – To display the sum of the series given below:

`1/2 + 1/3 + 1/4 .....1/10`

Name the following :
(i) A keyword used to call a package in the program.
(ii) Any one reference data type.

What is the value of xl if x=5?
x1 = + +x – X+ + + –x

Differentiate between searching and sorting.

If int x [ ] = { 4, 3,7, 8, 9,10}; what are the values of p and q ?

(i) p = x.length
(ii) q = x[2] + x[5] * x[1]

What is the type of casting shown by the following example: 

char c = (char) 120;

Write a program to input integer elements into an array of size 20 and perform the following operations:

(i) Display largest number from the array.
(ii) Display smallest number’ from the array.
(iii) Display sum of all the elements of the array.

Write a program to input forty words in an array. Arrange these words in descending order of alphabets, using selection sort technique. Print the sorted array.

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 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);

What is the value of y after evaluating the expression given below?

y+= ++y + y-- + --y; when int y=8; 

What are the values of a and b after the following function is executed if the values passed are 30 and 50?

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

State the data type and value of y after the following is executed: char x = 7; y = Character.isLetter(x); 

Write a program to accept a name and total marks of N number of students in two single subscript array name[] and totalmarks[].

Calculate and print:

1. The average of the total marks obtained by N Number of students.
   [average = (sum of total marks of all the students)/N]
2. Deviation of each student’s total marks with the average
   [deviation = total marks of a student – average]