Ouput:
Exer4

#include

#include

void main(){

clrscr();

int day;

gotoxy(30,5);textcolor(YELLOW+BLINK);cprintf("._. W e L c O m e ._.");

gotoxy(15,8);textcolor(GREEN);cprintf("Enter a number:");

scanf("%d",&day);

switch(day){

case 1:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Sunday");

break;

case 2:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Monday");

break;

case 3:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Tuesday");

break;

case 4:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Wednesday");

break;

case 5:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Thursday");

break;

case 6:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Friday");

break;

case 7:

gotoxy(25,10);textcolor(LIGHTRED);cprintf("Saturday");

break;

default:

gotoxy(20,10);textcolor(LIGHTRED);cprintf("Oops! Sorry! That day is not available!");}

getch();

}