January 23, 2018
INTRODUCTION TO C PROGRAMMING:
C is a general-purpose, procedural
computer programming language supporting structured programming. A successor to
the programming language B, C was originally developed at Bell Labs by Dennis
Ritchie between 1972 and 1973 to construct utilities running on Unix. It was
applied to re-implementing the kernel of the Unix operating system. During the
1980s, C gradually gained popularity. It has become one...
August 09, 2017
Chandrabhushan kumar
c programming
C Programming
Write a C program to input a no and check it negative or positive no.
void main()
{
int a;
printf("Enter a no.");
scanf("%d",&a);
if(a<0 br="">
printf("Negative No.");
}
else
{
printf("Positive No.");
}
getch();
}
Input: -5
Output: Negative No.
C Programmin...
- August 09, 2017
- Chandrabhushan kumar
- c programming
C Programming
Write a C program to input two nos and swap it without using third variable.
void main()
{
int a,b;
printf("Enter two nos.");
scanf("%d%d",&a,&b);
printf("Before Swaped value a=%db=%d",a,b);
a=a+b;
b=a-b;
a=a-b;
printf("Swaped value a=%db=%d",a,b);
getch();
}
Input: 10 20
Output: Swaped value a=20 b=10
C Programmi...
- August 09, 2017
- Chandrabhushan kumar
- c programming
C Programming
Write a C program to input two nos and swap it.
void main()
{
int a,b,c;
printf("Enter two nos.");
scanf("%d%d",&a,&b);
c=a;
a=b;
b=c;
printf("Swaped value a=%db=%d",a,b);
getch();
}
Input: 10 20
Output Swaped value a=20 b=1...
- August 09, 2017
- Chandrabhushan kumar
- c programming
Write a C program to input principal, rate and time(in year) and find simple interest and final amount.
void main()
{
float p,r,t,si,fa;
printf("Enter Principal amount, rate and time.");
scanf("%f%f%f",&p,&r,&t);
si=(p*r*t)/100;
fa=p+si;
printf("Simple Interest=%f", si);
printf("Final Amount=%f", fa);
getch();
}
Input : 1200 2 3
Output: Simple interest=108
...
- August 09, 2017
- Chandrabhushan kumar
- c programming
Program to input two nos and perform simple operation.
void main()
{
int a,b;
printf("Enter two nos.");
scanf("%d%d", &a,&b);
printf("\nAddition=%d",a+b);
printf("\nSubstraction=%d",a-b);
printf("\nMultiplication=%d",a*b);
printf("\nDivision=%d",a/b);
getch();
}
Input : 100 20
Output: Addition=120
Substraction=80
...
- August 09, 2017
- Chandrabhushan kumar
- c programming
3. Write a C program to input two no and print the sum without using third variable
void main()
{
int a,b; // variable declaration
printf("Enter two nos."); // message to enter no.
scanf("%d%d",&a,&b); // store no in separate variable a and b
printf("Sum=%d",a+b); // add variable and also print with message
getch(); ...
- August 09, 2017
- Chandrabhushan kumar
- c programming
Write a C program to input two number and print the sum using third variable.
void main()
{
int first,second,sum; // Variable declaration
printf("Enter Two No.");
printf("%d%d",&first,&second); // number stored in first and second variable
sum=first+second; // add two no
printf("Sum=%d",sum); ...
- June 24, 2017
- Chandrabhushan kumar
- c programming
C Programming
Switch Statement in C
In
switch statement we test the single constant variable or value with
different case value and if matched value...
- June 24, 2017
- Chandrabhushan kumar
- c programming
C Programming
Nested if
If any statement is executed on the basis of multiple if condition is called nested if.
if((condition)&&(condition)&&(condition))
{
//body to execute
}
else if((condition)&&(condition)&&(condition))
{
//body...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
If else-if ladder
The if else ladder statement in C programming language is used to test
set of conditions in sequence. An if condition is tested only when all
previous if conditions in if-else ladder...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
if else
If we want to execute the particular statement on the basis of certain condition, called if else statement.
Syntax
if(condition)
{
//body to execute
}
else
{
//body to execute
}
Example
C program to input a no and check negative no. or positive...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
Simple if Statement
The statement which executes on the basis of certain condition is called simple if statement.
Syntax.
if(conditon)
{
//body to execute
}
Example:
void...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
Control Statement
The statement which control the flow of control is called control statement.
C Provides following types of control statement-
1. Selective Statement or Conditional Statement.
2. Iterative Statement or Repetitive Statement or Loop.
3. Jumping Statement.
1. Conditional Statement
The statement which executes on the basis of certain condition is called conditional statement.
C provides following...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
Constants in C
A constant variable is such type of variable that's value can't be changed during execution of the program.
Constants in C
ConstantExample
Decimal Constant10, 20, 450 etc.
Real or Floating-point Constant10.3, 20.2, 450.6 etc.
Octal Constant021, 033, 046 etc.
Hexadecimal Constant0x2a, 0x7b, 0xaa etc.
Character Constant'a', 'b', 'x' etc.
String Constant"c", "c program", "c in javatpoint" etc.
Example
void...
- June 23, 2017
- Chandrabhushan kumar
- c programming
C Programming
C Operators
An operator is the symbol that take one or more than one operand and perform operation on it.
Ex. int a,b, c;
a=10,b=20;
c=a+b; // Here a, b is operand and + is operator
C provides following types of operators to perform different types of operations:
Arithmetic Operators
Relational Operators
Shift Operators
Logical Operators
Bitwise...
- June 23, 2017
- Chandrabhushan kumar
C Programming
Keywords in C
A keyword is a reserved word that has special meaning. We cannot redefine the keyword or cannot force to change the naute. Keywords cannot be used as the variable name, constant name etc. There are only 32 reserved words for keywords in C language.
Following are 32 keyword used in C:-
autobreakcasecharconstcontinuedefaultdo
double else enum extern floatforgotoif
int longregisterreturnshortsignedsizeofstatic
str...
- June 22, 2017
- Chandrabhushan kumar
- Simple Operation in C
C Programming
Simple Operations in C
void main()
{
int a,b;
clrscr();
printf("Enter Two No.");
scanf("%d%d",&a,&b);
printf("\nsum=%d", a+b);
printf("\nSubs=%d",a-b);
printf("\nMulti=%d", a*b);
printf("\nDivision=%d",a/b);
getch();
}
Note:
a, b is integer variable which will store integer value range -32768- +32767
clrscr() is the function which wiil clear the screen and set the cursor at first position on the screen.
printf()...
- June 22, 2017
- Chandrabhushan kumar
- Variables in C
C Programming
Variables in C
A variable is a name of memory location that is used to store the data. We can change its value and reuse it.
Example. int a; // a is the variable of type int.
flaot b; // b is the variable of type float.
Rules to Declare Variable
Variable may be combination of digit(0-9), alphabet(a-z, A-Z)...
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