86 : C Program to read sentence in uppercase and print in lowercase

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/*
 * 1000+ C programs + tutorials
 *
 * 
 * 87_c_program_to_read_sentence_in_and_swap_uppercases_lowercases.c
 *  
 *  
 *
 *  Created on: Oct 25, 2014
 *  Author: Code2care.org
 */

#include 
//#include 

void main() {

char ch;

//clrscr();

printf("Enter a String : ");

while( (ch=getchar( )) !='\n')  {
    
    if(ch>=65 && ch<=90) {
        putchar(ch+32);
     }
     else if(ch>=97 && ch<=122) {
    putchar(ch-32);
    }
    else {
        putchar(ch);
    }



}

//getch();  
   
}








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