BCA LECTURE-2 C PROGRAMMING

Input in C

scanf() function used for input in c programming language.

int x;

scanf(“%d”,&x);

float y;

scanf(“%f”,&y);

int x,y;

scanf(“%d%d”,&x,&y);

or

scanf(“%d”,&x);

scanf(“%d”,&y);

float x,y;

scanf(“%f%f”,&x,&y);

char d;

scanf(“%c”,&d);

scanf(“%d%d”,&a,&b);

r=a+b;

t=a+b+c+d;

si=p*n*r/100;

scanf(“%f”,&r);

a=3.14*r*r;

t=s1+s2+s3+s4+s5;

Arithmetic operator

+    -    *    /    % (remainder)

int a=6,b=2,r;

r=a/b;

r= 3;

int a=6,b=2,r;

r=a%b;

r= 0;

e.g1

int a=5,b=2;

r1=a/b;       r2=a%b;

r1=2;                            r2=1;

Take marks of Five subject & find total marks & percentage

t=s1+s2+s3+s4+s5;

p=t/5;

find square & cube of input number.

s=n*n;

c=n*n*n;

1   1.  Write C Program to Display Message:- Welcome to C

 2. Write C Program to Display Message:-

              C is Procedural Programming Language.

              Major Operating System Written in C.

              C Developed by Dennis Richie.

 3. Write C Program to take any number & find square & cube of that number.

4. Write C Program to take marks of Five Subjects & find total marks and percentage.

5. Write C Program to find area of circle.  a=3.14*r*r

6. Write C Program to find area of rectangle. a=l*b

7. Write C Program to take any two numbers & swap them using third variable. t=a; a=b; b=t;

8. Write C Program to take any two numbers & swap them without using third variable. a=a+b; b=a-b; a=a-b;