ISC (Science) ISC Class 12 - CISCE Question Bank Solutions

Answer the following questions related to the below image:

1. What is the output of the above gate if input A=0, B=1?
2. What are the values of the inputs if output =1?

Given are two strings, input string and a mask string that remove all the characters of the mask string from the original string.

A class StringOp is defined as follows to perform above operation.

Some of the members of the class are given below:

Specify the class StringOp giving details of the constructor( ), void accept( ), void form() and void display( ). Define a main( ) function to create an object and call all the functions accordingly to enable the task.

A class Mixarray contains an array of integer elements along with its capacity (More than or equal to 3). Using the following description, form a new array of integers which will contain only the first 3 elements of the two different arrays one after another.

Example:

Array1: { 78, 90, 100, 45, 67 }

Array2: {10, 67, 200, 90 }

Resultant Array: { 78, 90, 100, 10, 67, 200}

The details of the members of the class are given below:

Specify the class Mixarraygiving details of the constructor(int), void input( ), Mixarray mix(Mixarray,Mixarray) and void display( ). Define a main( ) function to create objects and call all the functions accordingly to enable the task.

Write the statement in Java to extract the word “MISS” from the word “SUBMISSION”.

What is the output of the statement given below?

System.out.print("FAN" + ("AUTOMATIC".charAt(5) ) );

A class Fibo has been defined to generate the Fibonacci series 0, 1, 1, 2, 3, 5, 8, 13, ……. (Fibonacci series are those in which the sum of the previous two terms is equal to the next term).

Some of the members of the class are given below:

Specify the class Fibo, giving details of the Constructor, void read( ), int fibo(int), and void display( ). Define the main() function to create an object and call the functions accordingly to enable the task.

A class Gcd has been defined to find the Greatest Common Divisor of two integer numbers. Some of the members of the class are given below:

Specify the class Gcd, giving details of the Constructor, void accept( ), int gcd(int,int), and void display( ). Define the main() function to create an object and call the functions accordingly to enable the task.

A super class Godown has been defined to store the details of the stock of a retail store. Define a subclass Update to store the details of the items purchased with the new rate and update the stock. Some of the members of both the classes are given below:

Assume that the super class Godown has been defined. Using the concept of inheritance, specify the class Update giving details of the constructor, void update ( ) and void display( ).

The super class, main function and algorithm need NOT be written.

State any one purpose of using the keyword this in Java programming.

A matrix M[- 6, ... 10, 4 ... 15] is stored in the memory with each element requiring 4 bytes of storage. If the base address is 1025, find the address of M [4] [8] when the matrix is stored in Column Major wise.

Differentiate between half adder and full adder. Write the Boolean expression and draw the logic circuit diagram for the SUM and CARRY of a full adder.

What is an encoder?

How is Encoder different from a decoder?

A class Sort Alpha has been defined to sort the words in the sentence in alphabetical order.

Example: Input: THE SKY IS BLUE
Output: BLUE IS SKY THE

Some of the members of the class are given below:

Specify the class Sort Alpha giving details of the constructor (), void acceptsent(), void sort (Sort Alpha) and void display(). Define a main()function to create an object and call the functions accordingly to enable the task.

When a sequence of OR, NOT, NOR are connected in series, the logic gate obtained is ______.

Idempotence Law states that ______.

Assertion: Recursive data structure follows the LIFO principle.

Reason: Execution of recursive code follows the concepts of data structure Queue.

State any one difference between instance variable and class variable.

The following function is a part of some class:

int jolly(int[] x, int n, int m)
  {
if (n<0)
  return m;
else if(n<x.length)
  m=(x[n]>m)?x[n]:m;
return jolly(x, --n, m);
  }

1. What will be the output of jolly() when the value of x[ ]={6,3,4,7,1}, n=4 and m=0?
2. What function does jolly() perform, apart from recursion?

Draw the logic gate diagram for the reduced expression. Assume that the variables and their complements are available as inputs.