Sumita Arora C++ Class 12 PDF solutions: CBSE class XII students learn computer science. Most of the schools recommend using a book written by Sumita. Together with CBSE Practice Material Chapterwise for Class 12 Computer CBSE Computer Science Chapterwise Solved Papers Class 12th 4. Computer Science () .. 14 – 3 evaluates to If a = 2, b = 3 then b A class is a way to bind the data and function together in a single unit. or. A class.

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Together un Enriched Scanner for classes 10 & 12 . CBSE . + Solution. 7. Mathematics. 8. Physics. Pagether doch. COMPUTER. SCIENCE. (Python). Class – XII 12 (6). 2. Object Oriented Programming in C++ a) Introduction to OOP using C . then above two statements can be combined in to one as follows . t gives me immense pleasure to present the Study Material of Class XII Computer Science () for session by Kendriya Vidyalaya Sangathan, Silchar.

The paper is well designed and in accordance with the latest pattern and will surely prove to be helpful.

Want to make your careers in computers? So, for that you have to make your base strong be it starting from the boards itself. Hence, solve this sample paper, made in accordance to the fresh pattern and be confident for your future planning. Computer Science paper of class 12 contains very basic questions of computing and students are advised to prepare it very seriously if they want to study computer science in their future.

This practice paper is very well designed and students can solve if they want to check their preparation.

About the Author: Rahul sharma. Pawan says: Sneha Sinha says: Neha S says: The first one is on page 57 at the bottom, which counts the number of characters and words in a phrase.

The second one is on page 64 which determines whether the entered character is a vowel or consonant. Write a program that reads three numbers and prints the largest. This program can be done in a number of ways with different algorithms.

Im going to do it in a simple way and just print the largest of the three numbers. If you want to print which variable has the largest value or which variables have equal values or if all variables are equal, then that can be done with different ways but I want to keep the program short and simple and do just what the question says using if-else and else-if constructs. A class of 35 students took an examination in which marks range from 0 to Write a program which finds a The average marks b The number of students failed marks below 50 c The number of students who scored marks Answer: This program can be done using arrays because we havent studied arrays yet at this point in the textbook.

Thus I will do this program using loops and if conditions only. The marks I entered were 0, 7, 11, 21, 35, 42, 49, 52, 53, 55, 57, 58, 63, 64, 66, 68, 69, 71, 72, 73, 76, 77, 81, 85, 86, 88, 89, 91, 95, 96, 97, 99, , , Write a program that prints all odd positive integers less than skipping those that are exactly divisible by 7. First make a loop, preferably for loop which only prints positive odd integers less than The loop will be similar to the one used in Chapter 3 Loops Q 9.

Then in the loop eliminate all the numbers which are divisible by 7 by using an if condition. I have not written the code for this and the next program myself but found it on the interwebs as my math sucks lol. I will add the URL of the original source here so that you can read the explanation and different ways of doing the program.

Write a program that reads the coefficients, a, b and c of the quadratic equation and prints the real solutions of x, using the following formula Note that if then there is only one real solution. The program can be found here http: I have made some changes in it to fit the question as we only need to print the real solutions and not the complex ones.

Chapter 5 Arrays and Strings Q 5. Write a program that reads n integers and prints the smallest along with its subscript value in the list. There is a program to find the largest integer on page This one is quite similar to it but with a few additions. Instead of 15 inputs we will have n inputs where n in any number inputted by the user.

Plus we have to print the subscript value of the smallest number. Write a program that reads two integer arrays, a and b, having 5 elements each and prints the sum of the products as given below.

This is a simple one. We just have to translate the formula given above into code. Write a program that reads n floating point numbers and prints the sum of positive numbers.

Another easy one. Just have to fill an array with n floating point numbers and then calculate the sum of all positive numbers with an if condition elimination all the negative numbers. For a floating-point array x whose size Is n, find the geometric mean. I tried doing this math formula myself and thankfully it worked.

First we will find the product of n floating-point numbers inside the square root and then we will calculate the square root itself. Write codes that will print the following patterns. Now the following programs are a bit tricky. They are actually a good exercise on how loops work or rather how nested loops work.

The question c is the trickiest and the other three are easy. B is just the reverse of a, and d is exactly the same as a but instead of printing the numbers you will be printing asterisks.

If you follow the programs and compare them, then you will be able to get the logic behind them. For a two dimensional array x that has r rows and c columns, print the sum and average of each row. This one was a bit is a bit tough. It is another good exercise to better understand the loops and functionality of two dimensional arrays.

Instead to having a static value for the row and arrays, I have made the program such that the value of rows and columns is input by the user thus making the program a bit more flexible. I entered a 3 x 3 matrix with the values 7 9 2 13 21 3 6 42 Write a program that prints the larger of two numbers entered from the keyboard.

Use a function to do the actual comparison of the two numbers. Pass the two numbers to the function as arguments and have the function return the answer with return. The programs in this chapter are simple as we have done similar programs before.

In these programs we have to do the actual computation of the program in the functions. This program is a simple comparison program of two number where the comparison will be done by the function.


Write a program using a function to calculate the area of a rectangle. Another easy one where we just have to take the input of length and width of a rectangle by the user and then calculate the area of the rectangle using a function.

Write a program that produces the following table of temperature in Centigrade and Fahrenheit from 0 degrees to 50 degrees centigrade. Use a function for conversion. An almost similar conversion of temperature program has already been done on the page 41 of the textbook. Refer there to understand better how to do this program. Write a program that reads a phrase and prints the number of lower-case letters in it using a function for counting.

The answer of this question is almost similar to the program in Chapter 4 Choices and Decisions Q 3. We just have to do it using a function. Write a program that reads n floating-point number in an array and prints their product using a function. The question seems simple but the program is a bit bigger that the normal programs in the exercises. Fill an array with n number of floating-point values.

Pass the array and the variable n to the function and then calculate the product of the values in the array and then print it. Write a program that reads numbers in two integer arrays, x and y, of size m and n and prints them in ascending order using a function.

Computer Science for Class XII - Programming using C (Solved Exercises/Programs)

There is a sorting program on page 72 which will be used to do the actual sorting procedure of this program in the function, which is by the exchange sort method. We will pass the arrays x and y respectively with their sizes m and n respectively to sort and print the array.

A sequence is an ordered collection of items, indexed by positive integers. Functions in Python: A function is named sequence of statement s that performs a computation. A module is a file containing Python definitions i. Standard library.

(Download) CBSE Class XII Computer Science C++ Projects For (Hotel Manegement)

In python, consecutive sequence of characters is known as a string. An individual character in a string is accessed using a subscript index.

A dictionary is like a list, but more in general. In a list, index value is an integer, while in a dictionary index value can be any other data type and are called keys.

A tuple is a sequence of values, which can be of any type and they are indexed by integer. Static Binding: Dynamic Binding: A mapping from names to objects.

Examples of namespaces are built-in names, global names in a module and local names in function invocation. LEGB rule: A class object can be used in two ways - Instantiation and Attribute reference Class attributes belong to the class and will be shared by all instances Instance attributes belong to a particular instance of a class only.

Name Mangling: A name is prefixed with two leading underscores and no more than one trailing underscore. Static Method: Reference Counting: When an object's reference count reaches zero, Python collects it automatically. Automatic Garbage Collection: In object oriented programming, inheritance is a mechanism in which a new class is derived from an already defined class.

COMPUTER SCIENCE for Class 12(XII) - CBSE & NCERT Curriculum

The derived class is known as a subclass or a child class. The pre-existing class is known as base class or a parent class or a super class. Single Inheritance: In single inheritance a subclass is derived from a single base class. Multilevel Inheritance: In multilevel inheritance, the derived class becomes the base of another class.

Multiple Inheritance: In this type of inheritance, the derived class inherits from one or more base classes. Hierarchical Inheritance: In this type of inheritance, the base class is inherited by more than one class.

Hybrid Inheritance: This inheritance is a combination of multiple, hierarchical and multilevel inheritance. Overriding Methods: The feature of overriding methods enables the programmer to provide specific implementation to a method in the subclass which is already implemented in the superclass.Important topics of all subjects are given in these CBSE notes.

You can use the w swtich while compiling to bypass the warning. To understand this program better take a look at the program at page Reading Characters from a file. Creating question papers online with your own name and logo takes less than 2 minutes. These are very useful summary notes with neatly explained examples for best revision of the book. Such as keeping track of open and close braces and every element is distinct as they have different colors.

Multilevel Inheritance: