Answer Posted / fazlur rahaman naik

With the help of pointer we can access a variable
address.with that we can change the value of the
variable.for eg:

main()
{
int a = 10;
int *x;

x = &a;

printf("a = %d\n",a);
*x = 978;
printf("a = %d\n");
}

now the value of the a is 978.

if we pass a pointer to a variable to a function then the
value of that variable will be chageed if we change it in
that function.
for eg:

main()
{
int b = 87;
int *x;
x = &b;
fun(x);
printf("b = %d\n");
}

fun(int *x)
{
*x = 879;
}

here the value of the b will be 879.

Array : Array is a collection of variable of similar types.
i.e. it can b an collection of n number of integers or arry
of characters etc.
for eg:

Take a examination marks of a class.it could b a float
value or a integer value.Then u need to take five variables
of float type or interger type.Insted of that u can take an
array of float or integer type.

float marks[n];

arrays r mainly used for strings.

char string[n];

Structure:
The structure is a collection of variables of various data
types.

the best example for this is employee details or student
details.

struct emloyee
{
char name[25];
int age;
float salary;
char mobile[15];
char desig[25];
};

what type of questions arrive in interview over c programming?

2031

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What is the difference between the = symbol and == symbol?

1122

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What is the difference between a string copy (strcpy) and a memory copy (memcpy)? When should each be used?

1125

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Can we assign integer value to char in c?

1254

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What is pointers in c?

1117

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Explain how can I convert a string to a number?

1102

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WHICH TYPE OF JOBS WE GET BY WRITING GROUPS .WHEN THE EXAMS CONDUCTED IS THIS EXAMS ARE CONDUCTED EVERY YEAR OR NOT.PLS TELL ME THE ANSWER

1868

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Where are c variables stored in memory?

1071

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List some applications of c programming language?

958

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what is the c source code for the below output? 5555555555 4444 4444 333 333 22 22 1 1 22 22 333 333 4444 4444 5555555555

3072

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Why #include is used in c language?

1054

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Why cant I open a file by its explicit path?

1035

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Write a code of a general series where the next element is the sum of last k terms.

1043

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What are identifiers c?

1088

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Where does the name "C" come from, anyway?

1169

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