(English Medium) ICSE Class 10 - CISCE Important Questions

The Scanner class method used to accept words with space:

Missing a semicolon in a statement is what type of error?

DTDC, a courier company, charges for the courier based on the weight of the parcel. Define a class with the following specifications:

Define a class to accept a number from user and check if it is an EvenPal number or not. (The number is said to be EvenPal number when number is palindrome number (a number is palindrome if it is equal to its reverse) and sum of its digits is an even number.)

Example: 121 - is a palindrome number

Sum of the digits - 1 + 2 + 1 = 4 which is an even number

Define a class to accept values into an integer array of order 4 x 4 and check whether it is a DIAGONAL array or not An array is DIAGONAL if the sum of the left diagonal elements equals the sum of the right diagonal elements. Print the appropriate message.

Example:

3 4 2 5   Sum of the left diagonal elements =

2 5 2 3   3 + 5 + 2 + 1 = 11

5 3 2 7   Sum of the right diagonal elements =

1 3 7 1   5 + 2 + 3 + 1 = 11

Define a class to accept the gmail id and check for its validity.

A gmail id is valid only if it has:

→ @

→ . (dot)

→ gmail

→ com

Example: [email protected] is a valid gmail id.

Name the keyword which: indicates that a method has no return type.

Name the keyword which: makes the variable as a class variable.

Evaluate the following expression if the value of x = 2,y = 3 and z = 1.
v = x + – z + y + + + y.

Identify the literal given below:

0.5

What are the values stored in variables r₁ and r₂:

(i) double r₁=Math.abs(Math.min(-2.83,-5.83));
(ii) double r₂=Math.sqrt(Math.floor(16.3)); 

Name any two library packages.

What is the difference between the Scanner class functions next () and nextLine()?

Give the output of the following Math functions: 

(i) Math.ceil(4.2)
(ii) Math.abs(-4)

System.out.print("BEST "); 
System.out.println("OF LUCK"); 

Choose the correct option for the output of the above statements. 

Write the return type of the following library functions: 

1. isLetterOrDigit(char)
2. replace(char, char) 

Give the output of the following :

(i) Math.floor (- 4.7)

(ii) Math.ceil(3.4) + Math.pow(2,3)

Name the mathematical function which is used to find sine of an angle given in radians.

Name a string function which removes the blank spaces provided in the prefix and suffix of a string. 

Define a class named 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 — Tb 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 Rs.3 for the first hours or part thereof, and Rs. 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.