(English Medium) ICSE Class 10 - CISCE Important Questions

Write one difference between / and % operator.

String x[] = {“SAMSUNG”, “NOKIA”, “SONY”, “MICROMAX”, “BLACKBERRY”};

Give the output of the following statements:

1. System.out.println(x[1]);
2. System.out.println(x[3].length()); 

Write a Java expression for the following :
ax⁵ + bx³ + c 

Write the output for the following :

String s= “Today is Test”;
System.out.println(s.indexOf(‘T’)); System.out.println(s.substring(0, 7) + ” ” + “Holiday”);

State the difference between == operator and equals () method. 

Using switch statement, write a menu-driven program for the following : 

(i) To find and display the sum of the series given below :
S = x¹ -x² + x² – x⁴ + x⁵ – x²⁰ 
(where x = 2)
(ii) To display the following series :
1 11 111 1111 11111
For an incorrect option, an appropriate error message should be displayed.

Give the output of the following string functions:

1. "MISSISSIPPI".indexOf('S') + "MISSISSIPPI".lastIndexOf('I')
2. "CABLE".compareTo("CADET") 

Write down java expression for:

`"T" = sqrt("A"^2 + "B"^2 + "C"^2)`

Rewrite the following using ternary operator:

if (x%2 == o)
System.out.print(“EVEN”);
else
System.out.print(“ODD”);

Write the return data type of the following function:

endsWith( )

Write a Java expression for the following :

`sqrt(3"x"+"x"^2)/"a+b"`

What is the function of catch block in exception handling? Where does it appear in a program?

State the output when the following program segment is executed:

String a = "Smartphone", b = "Graphic Art"; 
String h = a.substring(2, 5); 
String k = b.substring(S).toUpperCase(); 
System.out.println(h); 
System.out.println(k.equalsignoreCase(h)); 

Write the output for the following :

System.out.printIn(“Incredible” + “\n” + “world”);

Give the output of the following string functions: 

1. “ACHIEVEMENT”.replace(E’, ‘A’)
2. “DEDICATE”.compareTo(“DEVOTE”)

If int y = 10 then find int z = (++y * (y++ +5));

Rewrite the following using ternary operator : 

if (bill > 10000)
discount = bill * 10.0 / 100;
else
discount = bill * 5.0 / 100;

Design a class Railway Ticket with following description: 
Instance variables/data members:
String name: To store the name of the customer
String coach: To store the type of coach customer wants to travel
long mob no: To store customer’s mobile number
int amt: To store a basic amount of ticket
int total amt: To store the amount to be paid after updating the original amount

Member methods
void accept (): To take input for a name, coach, mobile number and amount
void update (): To update the amount as per the coach selected

(extra amount to be added in the amount as follows)

void display(): To display all details of a customer such as a name, coach, total amount and mobile number.

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

Special words are those words that start and end with the same letter.
Examples:
EXISTENCE
COMIC
WINDOW
Palindrome words are those words which read the same from left to right and vice versa
Examples:
MALAYALAM
MADAM
LEVEL
ROTATOR
CIVIC
All palindromes are special words, but all special words are not palindromes. Write a program to accept a word check and print Whether the word is a palindrome or only a special word.

Write a program in Java to accept a string in lower case and change the first letter of every word to upper case. Display the new string. 

Sample input: we are in a cyber world

Sample output: We Are In Cyber World