Programming

Question 1

What are the advantages of using pointer?

Answer 1

*makes program simple
*reduces program length
*enhances execution speed
*helps in allocation and deallocation.

Question 2

What are string handling functions? Explain any 4

Answer 2

built-in functions in programming languages that manipulate and process strings.
*strcpy() : It can copy the content of one string to another
*strcat() : It is used to join two strings
*strcmp() : can compared to strings
*strlwr() : can convert the string to lowercase

Question 3

Classify the different types of decision making statements.

Answer 3

There are two types of decision making statements
*if statement: helps u execute a block of code if the condition is true
*if-else statement: helps u to execute the block of code if the condition is true and another block of code if the condition is false.
*nested if statement: it is an if statement inside an if statement.
*switch statement: allows u to select one of many code blocks based on the value of the variable.

Question 4

What are multidimensional array

Answer 4

arrays with more than one dimension, used for tables and mattresses

Question 5

Define array

Answer 5

An array is a data structure that allows you to store multiple values of Same data type in contiguous block of memory
syntax
data_type array_name [size]
initialization int arr[5]={1,2,3,4,5};

Question 6

Define Union

Answer 6

user defined data type that allows different variables to be stored in the same memory location.

Question 7

Difference between arrays and pointers

Answer 7

ARRAYS
*An array is a data structure that allows you to store multiple values of Same data type in contiguous block of memory
*They cannot be modified
*initialisation is done while defining them
*nature is statistic
*allocation is done at compile time
POINTER
*Variables that store memory address
*they cannot be initialised while defining them
*nature is dynamite
*allocation is done at the runtime

Question 8

Difference between arrays and pointers

Answer 8

ARRAYS
*An array is a data structure that allows you to store multiple values of Same data type in contiguous block of memory
*They cannot be modified
*initialisation is done while defining them
*nature is statistic
*allocation is done at compile time
POINTER
*Variables that store memory address
*they cannot be initialised while defining them
*nature is dynamite
*allocation is done at the runtime