www.pudn.com > C++100.rar > CHAR.CPP, change:2004-10-20,size:890b


#include <string.h> 
#include <stdio.h> 
#include <ctype.h> 
#include <conio.h> 
 
int main(void) 
{ 
   int LENGTH,I; 
   char CHOICE; 
   char *STRING = "This is a string"; 
   printf("\nInput the string:"); 
   gets(STRING); 
   LENGTH = strlen(STRING); 
   printf("\nWhat do you want to do with the string?"); 
   printf("\n1: Capital Letters(A B C ... ...)"); 
   printf("\n2:Lowercase Letters(a b c ... ...)"); 
   do 
   { 
	printf("\nEnter you CHOICE:"); 
	scanf("%c",&CHOICE); 
   } 
   while((CHOICE!='1')&&(CHOICE!='2')); 
   switch (CHOICE){ 
	case '1':for (I=0; I<LENGTH; I++) 
			{ 
			STRING[I] = toupper(STRING[I]); 
			}; 
			break; 
	case '2':for(I=0; I<LENGTH; I++) 
			{ 
			STRING[I] = tolower(STRING[I]); 
			}; 
			break; 
   } 
   printf("\nThe string has been changed into : %s",STRING); 
   printf("\n\nPress Any Key to EXIT... ..."); 
   getch(); 
   return 0; 
}