CBSE Class 11 Computer Revision Worksheet Set E

CBSE Class 11 Computer Worksheet - Revision (5)

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Assignment # 4 – Class XI – Computer Science

Chapter 6: Getting Started with C++

1. What is a lexical unit ? Name the lexical units being used in C++.

2. What are literals ? Explain the different types of literals being used in C++.

3. What is the difference between ‘=’ and ‘==’ operators?

4. Which of the following are valid/ invalid operands :

height , main , rollno-5 , my address , 2day , class

5. What is the difference between ‘5’ , 5 and “ 5” ?

6. Identify the errors in the following program :

void main()

{

int x

char endl;

x=3;

cin>>endl;

cout<<x<<3

}

7. Explain the two different ways to give comments in C++.

8. Differentiate between ‘<<’ and ‘>>’ operators.

9. ‘Every C++ program must have a main().’ Why ?

10. Explain the different types of errors that may occur while programming .

11. What will be the output of the following code :

(i) cout<<” #\n**\n###\n****\n “;

(ii) char a= ‘@’;

cout << a;

cout<<’a’;

PROGRAMS

( to be done in the lab during practical periods )

1. To create a formatted output screen as given in the lab.

2. Write a C++ program that accepts marks and displays the percentage. Assume maximum marks

is 50.

3. Write a program that accepts the temperature in percentage and displays in Fahrenheit

4. Write a program that accepts length , breadth and then displays the area and perimeter of a

rectangle.

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