Scanf (Dynamic time) with Simple Programs

In Static time the value of the Variable are does not changed.So if we want to changed the value of Variable alternatively we can use function scanf().

Scanf():-

It is standard input function which is used to read different type of values from standard input device.

Syntax 1 :- 

scanf("Control String",&Variable name); 

Ex :- 

scanf("%d",&a); 

Syntax 2:-

scanf("Control String",&var name 1,-------var name n); 

Ex :- 

scanf("%d%d",&a,------&n);

* write a program to print two integer values on standard output device.

#include<stdio.h> #include<conio.h> void main()        {              int a,b;              clrscr();              printf("enter the a value:");              scanf("%d",&a);              printf("enter the b value:");              scanf("%d",&b);              printf("\n");              printf("the value of a is :%d\n",a);              printf("the value of b is :%d",b);              getch();       }

Output:-

enter the a value:5 enter the b value:8    the value of a is:5 the value of b is:8

* write a program to print two float values on standard output device.

#include<stdio.h> #include<conio.h> void main()        {             float a,b;             clrscr();             printf("enter the a value is:");             scanf("%f",&a);             printf("enter the b value is:");             scanf("%f",&b);             printf("\n\n");             printf("the value of a is:%f\n",a);             printf("the value of b is:%f",b);             getch();       }

Output:-

enter the a value:5 enter the b value:8.45 the value of a is:5.000000 the value of b is:8.450000

* write a program to print all datatype values.

1st Model #include<stdio.h> #include<conio.h> void main()       {             int i;             char c;             float f;             clrscr();             printf(“enter integer value:”);             scanf(“%i”,&i);             printf(“enter character value:”);             scanf(“%c”,&c);             printf(“enter float value:”);             scanf(“%f”,&f);             printf(“\n\n”);             printf(“integer value =%d\n”,i);             printf(“character value =%c\n”,c);             printf(“real number=%f\n”,f);             getch();      }

another Model #include<stdio.h> #include<conio.h> void main()        {             int i,char c,float f;             clrscr();             printf(“enter any integer,character,float values:\n”);             scanf(“%d,%c,%f”,&i,&c,&f);             printf(“\n\n”);             printf(“integer value =%d\n”,i);             printf(“character value =%c\n”,c);             printf(“real number=%f\n”,f);             getch();      }

Output:-

enter integer value:4 enter character value:c enter float value:6.54 integer value=4 character value=c real number=6.540000

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