#include<stdio.h>
void main()
{
int ch;
printf("Running getch(), please enter a character: ");
/*Does not echo pressed char key on the screen*/
printf("\n");
ch = getchar();
/* getch() does not echo pressed char key on the screen*/
printf("\n");
printf("The character value you have just entered: %c", ch); 
printf("\n");
printf("Running getche(), please enter a character: ");
ch= getchar();
/*getche() does echo the pressed character key on the screen*/
printf("\n");
printf("The character value you have just entered: %c", ch);
printf("Running getchar(), please enter a character: "); 
ch = getchar();
printf("The character value you have just entered: %c", ch);
}

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