(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Computer Applications

Which of the following is not true with regards to a switch statement?

Method prototype for the method compute which accepts two integer arguments and returns true/false.

Assertion(A): An argument is a value that is passed to a method when it is called.

Reason(R): Variables which are declared in a method prototype to receive values are called actual parameters.

Rewrite the following code using single if statement.

if(code=='g')
System.out.println("GREEN");
else if(code=='G')
System.out.println("GREEN");

A student executes the following program segment and gets an error. Identify the statement which has an error, correct the same to get the output as WIN.

boolean x=true;
switch(x)
{     case 1:System.out.println("WIN");break;
      case 2;System.out.println("LOOSE");
}

Write the java expression for `root3x + sqrty`

Define a class to accept a number and check whether it is a SUPERSPY number or not. A number is called SUPERSPY if the sum of the digits equals the number of the digits.

Example1:

Input: 1021

Output: SUPERSPY number [SUM OF THE DIGITS = 1+0+2+1 = 4, NUMBER OF DIGITS = 4]

Example2:

Input: 125

Output: Not an SUPERSPY number [1+2+5 is not equal to 3]

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 the return data type of the following function:

endsWith( )

Write two characteristics of a constructor.

Write a program to initialize the seven Wonders of the World along with their locations in two different arrays. Search for the name of the country input by the user. If found, display the name of the country along with its Wonder, otherwise display “Sorry Not Found!”. 
Seven wonders — CHICHEN ITZA, CHRIST THE REDEEMER, TAJMAHAL, GREAT WALL OF CHINA, MACHU PICCHU, PETRA, COLOSSEUM
Locations — MEXICO, BRAZIL, INDIA, CHINA, PERU, JORDAN, ITALY
Example —

Country Name: INDIA     Output: INDIA-TAJMAHAL
Country Name: USA        Output: Sorry Not Found!

Give the output of the following string methods.

"MISSISSIPPI".indexOf('S') + "MISSISSIPPI".lastIndexOf('I')

Define a class to accept two strings, convert them into uppercase, check and display whether two strings are equal or not, if the two strings are not equal, print the string with the highest length or print the message both the strings are of equal length.

Define a class to accept a string, convert it into lowercase and check whether the string is a palindrome or not.

A palindrome is a word that reads the same backward as forward.

Example:

madam, racecar etc.

The keyword used to call package in the program:

State the type of loop in the given program segment

for (int i = 5; i l = 0; i =2)

System.out.println(i);

The String class method to join two strings is ______.

The output of the function "COMPOSITION". substring(3, 6):

Give the output of the following String class method:

"COMMENCEMENT".lastIndexOf('M')

Give the output of the following String class method:

"devote". compareTo("DEVOTE")