(English Medium) ICSE Class 10 - CISCE Important Questions

Write a program to input and store roll numbers, names and marks in 3 subjects of n number students in five single dimensional array and display the remark based on average marks as given below : (The maximum marks in the subject are 100).
Average marks = `"Total marks"/3`

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

(i) void Joystring (String s, char ch1 char ch2) with one string argument and two character arguments that replaces the character argument ch1 with the character argument ch2 in the given string s and prints the new string.
Example:
Input value of s = “TECHNALAGY”
ch1=‘A’,
ch2=‘O’
Output: TECHNOLOGY
(ii) void Joystring (String s) with one string argument that prints the position of the first space and the last space of the given string s.
Example:
Input value of = “Cloud computing means Internet based computing”
Output: First index: 5
Last index: 36
(iii) void Joystring (String s1, String s2) with two string arguments that combines the two string with a space between them and prints the resultant string. Example :
Input value of s1 =“COMMON WEALTH”
Input value of s2 =“GAMES”
Output: COMMON WEALTH GAMES
(use library functions)

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!

Name the primitive data type in Java that is:
A 64-bit integer and is used when you need a range of values wider than those provided by int.

Name the primitive data type in Java that is :

A single 16-bit Unicode character whose default value is ‘\u0000’.

Operators with higher precedence are evaluated before operators with relatively lower precedence. Arrange the operators given below in order of higher precedence to lower precedence.

1. && 
2. % 
3. >= 
4. ++

State the output of the following program segment:
String str1 = “great”; String str2 = “minds”;
System.out.println (str1.substring (0,2).concat(str2.substring (1)));
System.out.println ((“WH”+(str1.substring (2).toUpperCase())));

Rewrite the following program segment using if-else statements instead of the ternary operator: 
String grade = (mark >= 90) ? “A” : (mark >= 80) ? “B” : “C”;

Give the output of the following method:

public static void main (String [] args)
{
int a = 5;
a++;
System.out.println(a);
a -= (a--) − (--a); 
System.out.println(a);
}

State the value of characteristic and mantissa when the following code is executed:
String s = “4.3756”;
int n = s.indexOf(‘.’);
int characteristic=Integer.parseInt (s.substring (0,n));
int mantissa=Integer.valueOf(s.substring(n+1)); 

Define a class named movieMagic with the following description:
Instance variables/data members:
int year — to store the year of release of a movie.
String title — to-store the title of the movie

float rating — to store the popularity rating of the movie
(minimum rating=0.0 and maximum rating=5.0)

Member methods:
(i) movieMagic() Default constructor to initialize numeric data members to 0 and String data member to “ ”.
(ii) void accept() To input and store year, title and rating.
(iii) void display() To display the title of a movie and a message based on the rating as per the table below.

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

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.

A Identify the type of operator &&:

The String class method to join two strings is ______.

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

The code obtained after compilation is known as ______.

Write the Java expression for (a + b)^x.

Evaluate the expression when the value of x = 4;
x* = - - x + x + + + x