C Program to display ASCII value of a Character, it's next character, and it's previous character.

 #include<stdio.h>  
 #include<conio.h>  
 main()  
 {  
         char c;  
         clrscr();  
         printf("Enter the character\n");  
         scanf("%c",&c);  
         printf("\n The ASCII value of %c is %d",c,c);  
         printf("\n Previous character of %c is %c",c,c-1);  
         printf("\n Next Character of %c is %c",c,c+1);  
 }   

OUTPUT :

Enter the character
s
The ASCII value of s is 115
Previous character of s is r
Next Character of s is t